Page 1 LISA-U2 series 3.75G HSPA / HSPA+ Cellular Modules System Integration Manual Abstract This document describes the features and the system integration of LISA-U2 series HSPA+ cellular modules. These modules are complete and cost efficient 3.75G solutions offering up to six-band HSDPA/HSUPA and quad-band GSM/EGPRS voice and/or data transmission technology in a compact form factor.
Page 2 PCN / IN LISA-U200 LISA-U200-01S-00 22.40 UBX-TN-12040 LISA-U200-02S-00 22.90 UBX-13003492 LISA-U200-03S-00 23.41 A01.01 UBX-15020745 LISA-U200-52S-00 22.86 UBX-13004628 LISA-U200-62S-00 22.90 UBX-13003492 LISA-U200 FOTA LISA-U200-82S-00 22.92 UBX-13004629 LISA-U200-83S-00 23.41 A01.01 UBX-15020745 LISA-U201 LISA-U201-03S-00 23.41 A01.01 UBX-15020745 LISA-U230 LISA-U230-01S-00 22.40 UBX-TN-12040 LISA-U260 LISA-U260-01S-00 22.61...
Page 3: Preface
Helpful Information when Contacting Technical Support When contacting Technical Support, have the following information ready:  Module type (e.g. LISA-U200) and firmware version  Module configuration  Clear description of your question or the problem ...
Page 4: Table Of Contents
LISA-U2 series - System Integration Manual Contents Preface ............................3 Contents ............................4 System description ........................7 Overview ................................7 Architecture................................9 1.2.1 Functional blocks ............................9 Pin-out ................................11 Operating modes ..............................15 Power management ............................17 1.5.1 Power supply circuit overview ........................17 1.5.2 Module supply (VCC) ..........................
Page 5 LISA-U2 series - System Integration Manual 1.15.5 ICASA Certification ........................... 110 1.15.6 KCC Certification ............................111 1.15.7 Anatel Certification ........................... 111 1.15.8 CCC Certification ............................. 112 1.15.9 TELEC / JATE Certification ......................... 112 Design-In ..........................113 Design-in checklist ............................113 2.1.1 Schematic checklist ...........................
Page 6 LISA-U2 series - System Integration Manual 3.15.2 Threshold Definitions ..........................151 3.16 Bearer Independent Protocol ..........................151 3.17 Multi-Level Precedence and Pre-emption Service ....................151 3.18 Network Friendly Mode ............................ 152 3.19 Power saving ..............................152 Handling and soldering ...................... 153 Packaging, shipping, storage and moisture preconditioning ................
Page 7: System Description
HSUPA category 6, up to 5.76 Mb/s UL GPRS multislot class 12 , coding scheme CS1-CS4,   up to 85.6 kb/s DL/UL HSDPA category 8 up to 7.2 Mb/s DL for LISA-U200, LISA-U201,  EDGE multislot class 12 , coding scheme MCS1-MCS9, LISA-U260 and LISA-U270 ...
Page 8 3G Transmission and Receiving: LISA-U2 modules implement 3G High-Speed Uplink Packet Access (HSUPA) category 6. LISA-U200, LISA-U201, LISA-U260 and LISA-U270 modules implement 3G High Speed Downlink Packet Access (HSDPA) category 8. LISA-U230 modules implement the 3G HSDPA category 14. HSUPA and HSDPA categories determine the maximum speed at which data can be respectively transmitted and received.
Page 9: Architecture
LISA-U2 series - System Integration Manual 1.2 Architecture Duplexers & Filters (U)SIM card SWITCH DDC (for GNSS) UART Switch & Multi band & mode PA Transceiver 26 MHz Filter Bank Wireless ANT_DIV Base-band 32.768 kHz Processor SWITCH GPIO(s) Transceiver Memory Digital audio (I Vcc (supply) Power on...
Page 10 LISA-U2 series - System Integration Manual  Power Management Unit with integrated DC/DC converter for the Power Amplifier Module  Voltage Controlled Temperature Compensated 26 MHz Crystal Oscillator (VC-TCXO) While operating in 3G mode, the RF transceiver performs direct up-conversion and down-conversion of the baseband I/Q signals, with the RF voltage controlled gain amplifier being used to set the uplink TX power.
Page 11: Pin-Out
LISA-U2 series - System Integration Manual 1.3 Pin-out Table 3 lists the pin-out of the LISA-U2 modules, with pins grouped by function. Function Module Description Remarks Power 61, 62, 63 I Module supply Clean and stable supply is required: low ripple and input low voltage drop must be guaranteed.
Page 12 LISA-U2 series - System Integration Manual Function Module Description Remarks SPI_MISO SPI Data Line Module Output: module runs as an SPI slave. Output Shift data on rising clock edge (CPHA=1). Latch data on falling clock edge (CPHA=1). Idle high. See section 1.9.4 SPI_MOSI SPI Data Line Module Input: module runs as an SPI slave.
Page 13 LISA-U2 series - System Integration Manual Function Module Description Remarks GPIO GPIO1 GPIO See section 1.12 GPIO2 GPIO See section 1.12 GPIO3 GPIO See section 1.12 GPIO4 GPIO See section 1.12 GPIO5 GPIO See section 1.12 GPIO6 GPIO See section 1.12 GPIO7 GPIO See section 1.12...
Page 14 Digital clock output for external audio codec See section 1.11. Reserved RSVD RESERVED pin This pin must be connected to ground See section 1.13 RSVD LISA-U200 RESERVED pin Do not connect LISA-U201 See section 1.13 LISA-U260 LISA-U270 Table 3: LISA-U2 modules pin definition, grouped by function...
Page 15: Operating Modes
LISA-U2 series - System Integration Manual 1.4 Operating modes LISA-U2 series modules have several operating modes. The operating modes are defined in Table 4 and described in details in Table 5, providing general guidelines for operation. General Status Operating Mode Definition Power-down Not-Powered Mode...
Page 16 LISA-U2 series - System Integration Manual Operating Description Transition between operating modes Mode Active The module is ready to accept data signals from When the module is switched on by an appropriate power-on event an external device unless power saving (see 1.6.1), the module enters active-mode from not-powered or configuration is enabled by AT+UPSV (see power-off mode.
Page 17: Power Management
LISA-U2 series - System Integration Manual 1.5 Power management 1.5.1 Power supply circuit overview LISA-U2 series modules feature a power management concept optimized for the most efficient use of supplied power. This is achieved by hardware design utilizing a power efficient circuit topology (Figure 3), and by power management software controlling the module’s power saving mode.
Page 18: Module Supply (Vcc)
LISA-U2 series - System Integration Manual Pins with supply function are reported in Table 6, Table 12 and Table 15. LISA-U2 series modules must be supplied via the VCC pins. There is only one main power supply input, available on the three VCC pins that must be all connected to the external power supply. The VCC pins are directly connected to the RF power amplifiers and to the integrated Power Management Unit (PMU) within the module: all supply voltages needed by the module are generated from the VCC supply by integrated voltage regulators.
Page 19 LISA-U2 series - System Integration Manual The module cannot be switched on if the VCC voltage value is below the specified normal operating range minimum limit. Ensure that the input voltage at VCC pins is above the minimum limit of the normal operating range for more than 3 s after the start of the module switch-on sequence.
Page 20 LISA-U2 series - System Integration Manual Any degradation in power supply performance (due to losses, noise or transients) will directly affect the RF performance of the module since the single external DC power source indirectly supplies all the digital and analog interfaces, and also directly supplies the RF power amplifier (PA).
Page 21 LISA-U2 series - System Integration Manual The usage of a regulator or a battery not able to withstand the maximum VCC peak current consumption stated in LISA-U2 series Data Sheet [1] is generally not recommended. However, if the selected regulator or battery is not able to withstand the maximum VCC peak current, it must be able to withstand at least the maximum average current consumption value specified in the module data sheet Error! Reference source not found..
Page 22 LISA-U2 series - System Integration Manual LISA-U2 series BOOST SYNC Figure 6: Suggested schematic design for the VCC voltage supply application circuit using a step-down regulator Reference Description Part Number - Manufacturer 10 µF Capacitor Ceramic X7R 5750 15% 50 V C5750X7R1H106MB - TDK 10 nF Capacitor Ceramic X7R 0402 10% 16 V GRM155R71C103KA01 - Murata...
Page 23 LISA-U2 series - System Integration Manual Reference Description Part Number - Manufacturer 22 µF Capacitor Ceramic X5R 1210 10% 25 V GRM32ER61E226KE15 – Murata 100 µF Capacitor Tantalum B_SIZE 20% 6.3V 15m T520B107M006ATE015 – Kemet 5.6 nF Capacitor Ceramic X7R 0402 10% 50 V GRM155R71H562KA88 –...
Page 24 LISA-U2 series - System Integration Manual LISA-U2 series SHDN Figure 8: Suggested schematic design for the VCC voltage supply application circuit using an LDO linear regulator Reference Description Part Number - Manufacturer C1, C2 10 µF Capacitor Ceramic X5R 0603 20% 6.3 V GRM188R60J106ME47 - Murata 330 µF Capacitor Tantalum D_SIZE 6.3 V 45 mΩ...
Page 25 LISA-U2 series - System Integration Manual Additional recommendations for the VCC supply application circuits To reduce voltage drops, use a low impedance power source. The resistance of the power supply lines (connected to the VCC and GND pins of the module) on the application board and battery pack should also be considered and minimized: cabling and routing must be as short as possible in order to minimize power losses.
Page 26 LISA-U2 series - System Integration Manual External battery charging application circuit LISA-U2 series modules do not have an on-board charging circuit. An example of a battery charger design, suitable for applications that are battery powered with a Li-Ion (or Li-Polymer) cell, is provided in Figure 10. In the application circuit, a rechargeable Li-Ion (or Li-Polymer) battery cell, that features proper pulse and DC discharge current capabilities and proper DC series resistance, is directly connected to the VCC supply input of LISA-U2 series module.
Page 27: Current Consumption Profiles
LISA-U2 series - System Integration Manual 1.5.3 Current consumption profiles During operation, the current drawn by the LISA-U2 series modules through the VCC pins can vary by several orders of magnitude. This ranges from the high peak of current consumption during GSM transmitting bursts at maximum power level in 2G connected mode, to continuous high current drawn in UMTS connected mode, to the low current consumption during power saving in idle-mode.
Page 28 LISA-U2 series - System Integration Manual When a GPRS connection is established there is a different VCC current consumption profile also determined by the transmitting and receiving bursts. In contrast to a GSM call, during a GPRS connection more than one slot can be used to transmit and/or more than one slot can be used to receive.
Page 29 LISA-U2 series - System Integration Manual 1.5.3.2 3G connected mode During a 3G connection, the module can transmit and receive continuously due to the Frequency Division Duplex (FDD) mode of operation with the Wideband Code Division Multiple Access (WCDMA). The current consumption depends again on output RF power, which is always regulated by network commands.
Page 30 LISA-U2 series - System Integration Manual 1.5.3.3 2G and 3G cyclic idle/active mode (power saving enabled) The power saving configuration is by default disabled, but it can be enabled using the appropriate AT command (see the u-blox AT Commands Manual [2], AT+UPSV command). When power saving is enabled, the module automatically enters idle-mode whenever possible.
Page 31 LISA-U2 series - System Integration Manual 1.5.3.4 2G and 3G fixed active mode (power saving disabled) Power saving configuration is by default disabled, or it can be disabled using the appropriate AT command (see the u-blox AT Commands Manual [2], AT+UPSV command). When power saving is disabled, the module does not automatically enter idle-mode whenever possible: the module remains in active mode.
Page 32: Rtc Supply (V_Bckp)
LISA-U2 series - System Integration Manual 1.5.4 RTC Supply (V_BCKP) The V_BCKP pin connects the supply for the Real Time Clock (RTC) and Power-On / Reset internal logic. This supply domain is internally generated by a linear regulator integrated in the Power Management Unit. The output of this linear regulator is always enabled when the main voltage supply provided to the module through VCC is within the valid operating range, with the module switched-off or powered-on.
Page 33 LISA-U2 series - System Integration Manual The internal regulator for V_BCKP is optimized for low leakage current and very light loads. It is not recommended to use V_BCKP to supply external loads. If V_BCKP is left unconnected and the module main voltage supply is removed from VCC, the RTC is supplied from the bypass capacitor mounted inside the module.
Page 34 LISA-U2 series - System Integration Manual the VCC supply has been provided. The purpose of the series diode is to avoid a current flow from the module V_BCKP pin to the non-rechargeable battery. Combining a LISA-U2 series cellular module with a u-blox GNSS receiver, the VCC supply of the GNSS receiver is controlled by the cellular module by means of the “GNSS supply enable”...
Page 35: Interface Supply (V_Int)
LISA-U2 series - System Integration Manual 1.5.5 Interface supply (V_INT) The same voltage domain used internally to supply the digital interfaces is also available on the V_INT pin. The internal regulator that generates the V_INT supply is a switching step down converter that is directly supplied from VCC.
Page 36: System Functions
LISA-U2 series - System Integration Manual 1.6 System functions 1.6.1 Module power-on When the LISA-U2 series modules are in the not-powered mode (i.e. switched off with the VCC module supply not applied), they can be switched on by:  Rising edge on the VCC pin to a valid voltage as module supply (i.e. applying module supply) ...
Page 37 LISA-U2 series - System Integration Manual 1.6.1.2 Low pulse on PWR_ON When the module is in power-off mode, i.e. it has been properly switched off as described in the section 1.6.2 (e.g. by the AT+CPWROFF command) and a voltage within the operating range is maintained at the VCC pins, the module can be switched on by means of the PWR_ON input pin: a falling edge must be provided on the PWR_ON pin, which must be then held low for an appropriate time period as specified in LISA-U2 series Data Sheet [1].
Page 38 LISA-U2 series - System Integration Manual 1.6.1.3 Rising edge on RESET_N When the module is in power-off mode (i.e. switched off with VCC maintained), the module can be switched on by means of the RESET_N input pin alternatively to the PWR_ON input pin: the RESET_N signal must be forced low for at least 50 ms and then released to generate a rising edge that starts the module power-on sequence.
Page 39 LISA-U2 series - System Integration Manual Figure 18 shows the modules power-on sequence from the power-off mode, describing the following phases:  The external supply is still applied to the VCC inputs as it is assumed that the module has been previously switched off by means of the AT+CPWROFF command: the V_BCKP output is internally enabled as proper VCC is present, the RESET_N of LISA-U2 series is set to high logic level due to internal pull-up to V_BCKP, the PWR_ON is set to high logic level due to external pull-up connected to V_BCKP or VCC.
Page 40: Module Power-Off
LISA-U2 series - System Integration Manual 1.6.2 Module power-off The power-off sequence of LISA-U2 series modules can be correctly started, so that the current parameter settings are saved in the module’s non-volatile memory and a proper network detach is performed, in one of these ways: ...
Page 41 LISA-U2 series - System Integration Manual Figure 19 describes the module’s power-off sequence, properly started by sending the AT+CPWROFF command, allowing storage of current parameter settings in the module’s non-volatile memory and a proper network detach:  When the +CPWROFF AT command is sent, the module starts the switch-off routine. ...
Page 42: Module Reset
LISA-U2 series - System Integration Manual 1.6.3 Module reset LISA-U2 series modules can be properly reset (rebooted) by:  AT+CFUN command (see the u-blox AT Commands Manual [2] for more details). This command causes an “internal” or “software” reset of the module, causing an asynchronous reset of the module baseband processor, excluding the integrated Power Management Unit and the RTC internal block.
Page 43 LISA-U2 series - System Integration Manual If RESET_N is connected to an external device (e.g. an application processor on an application board) an open drain output can be directly connected without any external pull-up. A push-pull output can be used too: in this case make sure that the high level voltage of the push-pull circuit is below the maximum voltage operating range of the RESET_N pin (specified in the RESET_N pin characteristics table in LISA-U2 series Data Sheet [1]).
Page 44: Rf Connection
LISA-U2 series - System Integration Manual 1.7 RF connection The ANT pin, provided by all LISA-U2 modules, represents the main RF input/output used to transmit and receive the 2G and 3G RF signal: the main antenna must be connected to this pad. The ANT pin has a nominal characteristic impedance of 50 ...
Page 45: U)Sim Interface
LISA-U2 series - System Integration Manual 1.8 (U)SIM interface High-speed SIM/ME interface is implemented as well as automatic detection of the required SIM supporting voltage. Both 1.8 V and 3 V SIM types are supported: activation and deactivation with automatic voltage switch from 1.8 V to 3 V is implemented, according to ISO-IEC 7816-3 specifications.
Page 46: U)Sim Application Circuits
LISA-U2 series - System Integration Manual 1.8.1 (U)SIM application circuits 1.8.1.1 SIM cards, SIM connectors and SIM chips selection The ISO/IEC 7816, the ETSI TS 102 221 and the ETSI TS 102 671 specifications define the physical, electrical and functional characteristics of Universal Integrated Circuit Cards (UICC) which contains the Subscriber Identification Module (SIM) integrated circuit that securely stores all the information needed to identify and authenticate subscribers over the GSM network.
Page 47 LISA-U2 series - System Integration Manual 1.8.1.2 Single SIM card without detection A removable SIM card placed in a SIM card holder must be connected to the SIM card interface of LISA-U2 modules as described in Figure 21, where the optional SIM detection feature is not implemented (see the circuit described in Figure 23 if the SIM detection feature is required).
Page 48 LISA-U2 series - System Integration Manual 1.8.1.3 Single SIM chip A solderable SIM chip (M2M UICC Form Factor) must be connected the SIM card interface of LISA-U2 modules as described in Figure 22, where the optional SIM detection feature is not implemented (see the circuit described in Figure 23 if the SIM detection feature is required).
Page 49 LISA-U2 series - System Integration Manual Follow these guidelines connecting the module to a SIM connector implementing the SIM presence detection:  Connect the UICC / SIM contacts C1 (VCC) and C6 (VPP) to the VSIM pin of the module ...
Page 50 LISA-U2 series - System Integration Manual 1.8.1.5 Dual SIM card connection Two SIM cards / chips can be connected to the module’s SIM interface, as described in the circuit of Figure 24. LISA-U2 modules do not support the usage of two SIMs at the same time, but two SIMs can be populated on the application board providing a proper switch to connect only the first SIM or only the second SIM per time to the SIM interface of the modules as described in Figure 24.
Page 51 LISA-U2 series - System Integration Manual FIRST SIM CARD LISA-U2 series VPP (C6) 4PDT VCC (C1) Analog IO (C7) Switch CLK (C3) 1VSIM VSIM VSIM 2VSIM RST (C2) 1DAT SIM_IO GND (C5) 2DAT C2 C3 D1 D2 D3 D4 1CLK SIM_CLK 2CLK SECOND...
Page 52: Serial Communication
LISA-U2 series - System Integration Manual 1.9 Serial communication LISA-U2 modules provide the following serial communication interfaces where AT command interface and Packet-Switched / Circuit-Switched Data communication are concurrently available:  One asynchronous serial interface (UART) that provides complete RS-232 functionality conforming to ITU-T V.24 Recommendation [3], with limited data rate ...
Page 53: Serial Interfaces Configuration
LISA-U2 series - System Integration Manual 1.9.1 Serial interfaces configuration UART, USB and SPI/IPC serial interfaces are available as AT command interface and for Packet-Switched / Circuit- Switched Data communication. The serial interfaces are configured as described in Table 26 (for information about further settings, see the u-blox AT Commands Manual [2]).
Page 54: Asynchronous Serial Interface (Uart)
LISA-U2 series - System Integration Manual 1.9.2 Asynchronous serial interface (UART) The UART interface is a 9-wire unbalanced asynchronous serial interface that provides AT commands interface, PSD and CSD data communication. The module firmware can be upgraded over the UART interface using the u-blox EasyFlash tool or by means of AT command (for more details see section 3.1 and Firmware update application note [17]).
Page 55 LISA-U2 series - System Integration Manual 1.9.2.1 UART features All flow control handshakes are supported by the UART interface and can be set by appropriate AT commands (see u-blox AT Commands Manual [2], &K, +IFC, \Q AT commands): hardware flow control (RTS/CTS), software flow control (XON/XOFF), or none flow control.
Page 56 LISA-U2 series - System Integration Manual One-shot automatic frame recognition is supported and enabled in conjunction with the one-shot automatic baud rate detection only: when the one-shot autobauding is active, the one-shot automatic frame recognition is enabled overruling the frame format setting. The frame format recognition is performed once and then, after the successful recognition of the frame format, the automatic frame recognition is disabled, as the automatic baud rate detection.
Page 57 LISA-U2 series - System Integration Manual 1.9.2.2 UART signal behavior See Table 5 for a description of operating modes and states referred to in this section. At the switch on of the module, before the initialization of the UART interface, as described in the power-on sequence reported in the Figure 18, each pin is first tri-stated and then is set to its specific internal reset state that is reported in the pin description table in LISA-U2 series Data Sheet [1].
Page 58 LISA-U2 series - System Integration Manual RTS signal behavior The hardware flow control input (RTS line) is set by default to the OFF state (high level) at UART initialization. The RTS line is then held by the module in the OFF state if the line is not activated by the DTE: an active pull-up is enabled inside the module on the RTS input.
Page 59 LISA-U2 series - System Integration Manual DCD signal behavior If AT&C0 is set, the DCD module output line is set by default to ON state (low level) at UART initialization and is then always held in the ON state. If AT&C1 is set, the DCD module output line is set by default to OFF state (high level) at UART initialization. The DCD line is then set by the module in accordance with the carrier detect status: ON if the carrier is detected, OFF otherwise.
Page 60 LISA-U2 series - System Integration Manual RI signal behavior The RI module output line is set by default to the OFF state (high level) at UART initialization. Then, during an incoming call, the RI line is switched from OFF state to ON state with a 4:1 duty cycle and a 5 s period (ON for 1 s, OFF for 4 s, see Figure 26), until the DTE attached to the module sends the ATA string and the module accepts the incoming data call.
Page 61 LISA-U2 series - System Integration Manual 1.9.2.3 UART and power-saving The power saving configuration is controlled by the AT+UPSV command (for the complete description see the u-blox AT Commands Manual [2]). When power saving is enabled, the module automatically enters low power idle-mode whenever possible;...
Page 62 LISA-U2 series - System Integration Manual AT+UPSV HW flow control RTS line DTR line Communication during idle-mode and wake up Enabled (AT&K3) ON or OFF ON or OFF Not Applicable: HW flow control cannot be enabled with AT+UPSV=2. Disabled (AT&K0) ON or OFF Data sent by the DTE is correctly received by the module.
Page 63 LISA-U2 series - System Integration Manual The time period between two paging receptions is defined by the current base station (i.e. by the network):  If the module is registered with a 2G network, the paging reception period can vary from ~0.47 s (DRX = 2, i.e.
Page 64 LISA-U2 series - System Integration Manual AT+UPSV=2: power saving enabled and controlled by the RTS line This configuration can only be enabled with the module hardware flow control disabled by AT&K0 command. The UART interface is immediately disabled after the DTE sets the RTS line to OFF. Then, the module automatically enters idle-mode whenever possible according to any required activity related to the network or any other required activity related to the functions / interfaces of the module.
Page 65 LISA-U2 series - System Integration Manual The UART wake up via data reception configuration is not active on the TXD input, and therefore all the data sent by the DTE is lost, if: AT+UPSV=2 is set with HW flow control disabled, and the RTS line is set OFF AT+UPSV=3 is set, regardless HW flow control setting, and the DTR line is set OFF Figure 29 and Figure 30 show examples of common scenarios and timing constraints: ...
Page 66 LISA-U2 series - System Integration Manual Figure 30 shows the case where in addition to the wake-up character further (valid) characters are sent. The wake up character wakes-up the module UART. The other characters must be sent after the “wake up time” of ~20 ms.
Page 67 LISA-U2 series - System Integration Manual 1.9.2.4 UART application circuits Providing the full RS-232 functionality (using the complete V.24 link) If RS-232 compatible signal levels are needed, to provide full RS-232 (9 lines) functionality two different external voltage translators (e.g. Maxim MAX3237E and Texas Instruments SN74AVC4T774) can be used. The Texas Instruments chips provide the translation from 1.8 V to 3.3 V, while the Maxim chip provides the translation from 3.3 V to RS-232 compatible signal level.
Page 68 LISA-U2 series - System Integration Manual Providing the TxD, RxD, RTS, CTS and DTR lines only (not using the complete V.24 link) If the functionality of the DSR, DCD and RI lines is not required, or the lines are not available: ...
Page 69 LISA-U2 series - System Integration Manual If only TxD, RxD, RTS, CTS and DTR lines are provided (as implemented in Figure 33 and in Figure 34) and if HW flow-control is enabled (AT&K3, default setting), the power saving can be activated as it can be done when the complete UART link is provided (9-wire, as implemented in Figure 31 and in Figure 32), i.e.
Page 70 LISA-U2 series - System Integration Manual If a 3.0 V Application Processor is used, appropriate unidirectional voltage translators must be provided using the module V_INT output as 1.8 V supply, as described in Figure 36. Application processor LISA-U2 series (3.0V DTE) (1.8V DCE) Unidirectional Voltage Translator...
Page 71 LISA-U2 series - System Integration Manual If RS-232 compatible signal levels are needed, the Maxim 13234E voltage level translator can be used. This chip translates voltage levels from 1.8 V (module side) to the RS-232 standard. Figure 37 describes the circuit that should be implemented as if a 1.8 V Application Processor is used. Application processor LISA-U2 series (1.8V DTE)
Page 72 LISA-U2 series - System Integration Manual In this case the first character sent when the module is in idle-mode will be a wake-up character and will not be a valid communication character (see section 1.9.2.3 for the complete description). If power saving is enabled the application circuit with the TxD and RxD lines only is not recommended. During command mode the DTE must send to the module a wake-up character or a dummy “AT”...
Page 73: Usb Interface
LISA-U2 series - System Integration Manual 1.9.3 USB interface LISA-U2 modules provide a high-speed USB interface at 480 Mb/s compliant with the Universal Serial Bus Revision 2.0 specification [7]. It acts as a USB device and can be connected to any USB host such as a PC or other Application Processor.
Page 74 LISA-U2 series - System Integration Manual Each USB profile of LISA-U2 module identifies itself by its VID (Vendor ID) and PID (Product ID) combination, included in the USB device descriptor according to the USB 2.0 specifications [7]. If the USB interface is connected to the host before the module switch on, or if the module is reset with the USB interface connected to the host, the VID and PID are automatically updated runtime, after the USB detection.
Page 75 LISA-U2 series - System Integration Manual Default profile configuration Alternative profile configuration Function AT and Data Function AT and Data Interface 0 Abstract Control Model Interface 0 Abstract Control Model EndPoint Transfer: Interrupt EndPoint Transfer: Interrupt Interface 1 Data Interface 1 Data EndPoint Transfer: Bulk...
Page 76 LISA-U2 series - System Integration Manual The USB drivers are available for the following operating system platforms:  Windows XP  Windows Vista  Windows 7  Windows 8  Windows 8.1  Windows CE 5.0  Windows Embedded CE 6.0 ...
Page 77 LISA-U2 series - System Integration Manual External series resistors on pins USB_D+ and USB_D- as required by the Universal Serial Bus Revision 2.0 specification [7] are also integrated: characteristic impedance of USB_D+ and USB_D- lines is specified by the USB standard. The most important parameter is the differential characteristic impedance (Z ) applicable for odd-mode electromagnetic field, which should be as close as possible to 90 ...
Page 78: Spi Interface
LISA-U2 series - System Integration Manual 1.9.4 SPI interface SPI is a master-slave protocol: the module runs as an SPI slave, i.e. it accepts AT commands on its SPI interface without specific configuration. The SPI-compatible synchronous serial interface cannot be used for FW upgrade. The standard 3-wire SPI interface includes two signals to transmit and receive data (SPI_MOSI and SPI_MISO) and a clock signal (SPI_SCLK).
Page 79 LISA-U2 series - System Integration Manual 1.9.4.1 IPC communication protocol overview The module runs as an SPI slave, i.e. it accepts AT commands on its SPI interface without specific configuration. The SPI-device shall look for all upper-SW-layers like any other serial device. This means that LISA-U2 modules emulate all serial logical lines: the transmission and the reception of the data are similar to an asynchronous device.
Page 80 LISA-U2 series - System Integration Manual 1.9.4.3 IPC communication examples In the following, three IPC communication scenarios are described:  Slave initiated data transfer, with a sleeping master  Master initiated data transfer, with a sleeping slave  Slave ended data transfer Slave initiated transfer with a sleeping master SPI_MRDY SPI_SRDY...
Page 81 LISA-U2 series - System Integration Manual 4. If the data has been exchanged, the slave deactivates SPI_SRDY to process the received information. The master does not need to de-assert SPI_MRDY as it controls the SPI_SCLK 5. After the preparation, the slave activates again SPI_SRDY and wait for SPI_SCLK activation. When the clock is active, all data is transferred without intervention.
Page 82 LISA-U2 series - System Integration Manual If a 1.8 V Application Processor is used, the SPI Master pins can be directly connected to the specific LISA-U2 SPI slave pins as described in Figure 45. It is recommended to tri-state the output pins of the SPI Master (i.e. set in high impedance mode) when LISA-U2 module is in power-down mode, when the external reset is forced low and during the module power-on sequence (at least for 3 s after the start-up event), to avoid latch-up of circuits and allow a proper boot of the module.
Page 83: Mux Protocol (3Gpp 27.010)
LISA-U2 series - System Integration Manual If the SPI/IPC interface is not used, the SPI_MOSI, SPI_MISO, SPI_SCLK, SPI_MRDY, SPI_SRDY pins can be left unconnected. Any external signal connected to the SPI / IPC interface must be tri-stated when the module is in power-down mode, when the external reset is forced low and during the module power-on sequence (at least for 3 s after the start-up event), to avoid latch-up of circuits and allow a proper boot of the module.
Page 84: Ddc (I C) Interface
LISA-U2 series - System Integration Manual 1.10 DDC (I C) interface 1.10.1 Overview An I C bus compatible Display Data Channel (DDC) interface for communication with u-blox GNSS receivers is available on LISA-U2 modules. The communication between a u-blox cellular module and a u-blox GNSS receiver is only provided by this DDC (I C) interface.
Page 85 LISA-U2 series - System Integration Manual To be compliant to the I C bus specifications, the module bus interface pads are open drain output and pull up resistors must be mounted externally. Resistor values must conform to the I C bus specifications [8]: for example, 4.7 k...
Page 86 LISA-U2 series - System Integration Manual The “GNSS supply enable” function improves the power consumption of the GNSS receiver. When the GNSS functionality is not required, the GNSS receiver can be completely switched off by the cellular module that is controlled by the application processor with AT commands.
Page 87 LISA-U2 series - System Integration Manual or a warm start (depending on the duration of the GNSS VCC outage) and to maintain the configuration settings saved in the backup RAM. “GNSS data ready” and “GNSS RTC sharing” functions are not supported by all u-blox GNSS receivers HW or ROM/FW versions.
Page 88 LISA-U2 series - System Integration Manual Connection with u-blox 3.0 V GNSS receivers Figure 48 shows an application circuit for connecting a LISA-U2 cellular module to a u-blox 3.0 V GNSS receiver:  As the SDA and SCL pins of the LISA-U2 cellular module are not tolerant up to 3.0 V, the connection to the related I C pins of the u-blox 3.0 V GNSS receiver must be provided using a proper I C-bus Bidirectional...
Page 89: Audio Interface
LISA-U2 series - System Integration Manual 1.11 Audio Interface All LISA-U2 series modules provide two bidirectional 4-wire I S digital audio interfaces for connecting to remote digital audio devices:  First 4-wire I S digital audio interface (I2S_CLK, I2S_RXD, I2S_TXD and I2S_WA) ...
Page 90: I 2 S Interface - Pcm Mode
LISA-U2 series - System Integration Manual The I S interface can be set to two configurations, by the <I2S_Master_Slave> parameter of AT+UI2S:  Master mode  Slave mode The sample rate of transmitted/received words can be set, by the <I2S_sample_rate> parameter of AT+UI2S, to: ...
Page 91: I 2 S Interface - Normal I 2 S Mode
LISA-U2 series - System Integration Manual  When I S word alignment toggles high, the first synchronization bit is always low. Second synchronization bit (present only in case of 2 bit long I S word alignment configuration) is MSB of the transmitted word (MSB is transmitted twice in this case) ...
Page 92 LISA-U2 series - System Integration Manual unidirectional voltage translators (e.g. Texas Instruments SN74AVC4T774 or SN74AVC2T245), using the module V_INT output as 1.8 V supply for the voltage translators on the module side For the appropriate selection of a compliant external digital audio device, see +UI2S AT command description in the u-blox AT Commands Manual [2] for further details regarding the capabilities and the possible settings of I digital audio interface of LISA-U2 series modules.
Page 93 LISA-U2 series - System Integration Manual Additional components are provided for EMC and ESD immunity conformity according to European Norms for R&TTE Directive (99/5/EC) and EMC Directive (89/336/EEC) compliance. The recommended parts for EMC and ESD immunity conformity are: a 10 nF bypass capacitor (e.g. Murata GRM155R71C103KA88) and a proper series chip ferrite bead noise/EMI suppression filter (e.g.
Page 94: Voiceband Processing System
LISA-U2 series - System Integration Manual 1.11.4 Voiceband processing system The voiceband processing on the LISA-U2 modules is implemented in the DSP core inside the baseband chipset. The external digital audio devices can be interfaced directly to the DSP digital processing part via the I S digital interface.
Page 95 LISA-U2 series - System Integration Manual UTRAN codecs: UMTS AMR2 (UMTS Adaptive Multi Rate version 2 – Narrow Band) UMTS AMR-WB (UMTS Adaptive Multi Rate – Wide Band)  Mandatory sub-functions: Discontinuous transmission, DTX (GSM 46.031, 46.041, 46.081 and 46.093 standards) Voice activity detection, VAD (GSM 46.032, 46.042, 46.082 and 46.094 standards) Background noise calculation (GSM 46.012, 46.022, 46.062 and 46.092 standards) ...
Page 96: General Purpose Input/Output (Gpio)
LISA-U2 series - System Integration Manual 1.12 General Purpose Input/Output (GPIO) LISA-U2 series modules provide up to 14 pins (GPIO1-14) which can be configured as general purpose input or output, or can be configured to provide special functions via u-blox AT commands (for further details see the u-blox AT Commands Manual [2], +UGPIOC, +UGPIOR, +UGPIOW, +UGPS, +UGPRF, +USPM).
Page 97 LISA-U2 series - System Integration Manual  GNSS RTC sharing: Only the GPIO4 pin provides the “GNSS RTC sharing” function, to provide an RTC (Real Time Clock) synchronization signal to the u-blox GNSS receiver connected to the cellular module, setting the parameter <gpio_mode>...
Page 98 LISA-U2 series - System Integration Manual The pin configured to provide the “Network status indication” function can be connected on the application board to an input pin of an application processor or can drive a LED by a transistor with integrated resistors to indicate network status.
Page 99 LISA-U2 series - System Integration Manual The pin can be connected on the application board to an output pin of an application processor to sense the digital signal level.  General purpose output: All the GPIOs can be configured as output to set the high or the low digital level through AT+UGPIOW command, setting the parameter <gpio_mode>...
Page 100 LISA-U2 series - System Integration Manual Name Description Remarks GPIO5 GPIO By default, the pin is configured to provide SIM card detection function. Can be alternatively configured by the +UGPIOC command as Output  Input  Network Status Indication  GNSS Supply Enable ...
Page 101 LISA-U2 series - System Integration Manual Name Description Remarks SPI_MRDY / SPI Master Ready / By default, the pin is configured as SPI Master Ready Input: GPIO14 GPIO Idle low  Internal active pull-down to GND enabled  Can be alternatively configured by the +UGPIOC command as Output ...
Page 102 LISA-U2 series - System Integration Manual u-blox GNSS LISA-U2 series 1.8 V receiver LDO Regulator GPS Supply Enable GPIO2 SHDN GPS Data Ready GPIO3 TxD1 GPS RTC Sharing GPIO4 EXTINT0 SIM card holder V_INT SIM Detection GPIO5 Network Indicator GPIO1 Figure 52: GPIO application circuit Reference Description...
Page 103: Reserved Pins (Rsvd)
LISA-U2 series - System Integration Manual The recommended application circuit for the module status indication function, provided by LISA-U2 series module GPIO1 and GPIO13 pins to indicate module status (power-off mode, i.e. module switched off, versus idle, active or connected mode, i.e. module switched on), is described in Figure 53. The logic level of the pin configured to provide module status indication, that is set high when the module is switched on (with interfaces configured) and low when the module is switched off, is inverted by a transistor biased by the V_BCKP supply, which is generated by the module when a valid VCC is applied.
Page 104: Schematic For Lisa-U2 Module Integration
LISA-U2 series - System Integration Manual 1.14 Schematic for LISA-U2 module integration Figure 54 is an example of a schematic diagram where LISA-U2 series module is integrated into an application board, using all the interfaces of the module. LISA-U2 series Main Tx/Rx Ferrite Antenna...
Page 105: Approvals
LISA-U2 series - System Integration Manual 1.15 Approvals For all the certificates of compliancy and for the complete list of approvals (including countries’ and network operators’ approvals) of LISA-U2 series modules, see our website (http://www.u-blox.com/) or contact the u-blox office or sales representative nearest you. Product certification approval is the process of certifying that a product has passed all tests and criteria required by specifications, typically called “certification schemes”...
Page 106: R&Tted And European Conformance Ce Mark
Sheet [1] for a complete list of the Notified Body numbers used in the certification of each module. 1.15.2 US Federal Communications Commission notice The Federal Communications Commission (FCC) IDs for the LISA-U2 modules are:  LISA-U200: XPYLISAU200  LISA-U201: XPYLISAU201 ...
Page 107 FCC procedures and as authorized in the module certification filing. The gain of the system antenna(s) used for LISA-U200 (i.e. the combined transmission line, connector, cable losses and radiating element gain) must not exceed 4.25 dBi (in 850 MHz, i.e.
Page 108: Industry Canada Notice
IC procedures and as authorized in the module certification filing. The gain of the system antenna(s) used for LISA-U200 (i.e. the combined transmission line, connector, cable losses and radiating element gain) must not exceed 4.25 dBi (in 850 MHz, i.e.
Page 109 LISA-U2 series - System Integration Manual The IC Label shall in the above case be visible from the outside, or the host device shall bear a second label stating: LISA-U200: "Contains IC: 8595A-LISAU200N" resp. LISA-U201: "Contains IC: 8595A-LISAU201" resp. LISA-U230: "Contains IC: 8595A-LISAU230" resp.
Page 110: Acma Certification
1.15.4 ACMA Certification LISA-U200 and LISA-U230 modules are certified by the Australian Communications and Media Authority The ACMA recommends that telephones be able to support access to emergency numbers (such as 000) for at least 30 minutes during a power failure.
Page 111: Kcc Certification
KCC ID for LISA-U2 modules:  LISA-U200: KCC-CRM-ULX-LISA-U200  LISA-U270: KCC-CRM-ULX-LISA-U270 1.15.7 Anatel Certification LISA-U200 modules are certified by the Brazilian Agency of Telecommunications (Agência Nacional de Telecomunicações in Portuguese) (Anatel). LISA-U200 3309-12-8459 (01)0 789 8941 57508 3 Anatel IDs for LISA-U200 modules: ...
Page 112: Ccc Certification
LISA-U2 series - System Integration Manual 1.15.8 CCC Certification LISA-U200 and LISA-U230 modules are CCC certified 1.15.9 TELEC / JATE Certification LISA-U200-62S, LISA-U270-62S and LISA-U270-68S are TELEC / JATE certified and have the Giteki mark placed on the product label.  LISA-U200-62S:...
Page 113: Design-In
LISA-U2 series - System Integration Manual 2 Design-In 2.1 Design-in checklist This section provides a design-in checklist. 2.1.1 Schematic checklist The following are the most important points for a simple schematic check:  DC supply must provide a nominal voltage at VCC pin above the minimum operating range limit. ...
Page 114: Layout Checklist
LISA-U2 series - System Integration Manual 2.1.2 Layout checklist The following are the most important points for a simple layout check:  Check 50  nominal characteristic impedance of the RF transmission line connected to the ANT pad (main RF input/output) and to the ANT_DIV pad (RF input for Rx diversity). ...
Page 115: Design Guidelines For Layout
LISA-U2 series - System Integration Manual 2.2 Design Guidelines for Layout The following design guidelines must be met for optimal integration of LISA-U2 modules on the final application board. 2.2.1 Layout guidelines per pin function This section groups LISA-U2 modules pins by signal function and provides a ranking of importance in layout design.
Page 116 LISA-U2 series - System Integration Manual Rank Function Pin(s) Layout Remarks RF Antenna Very Important Design for 50  characteristic impedance. Main RF input/output See section 2.2.1.1 Very Important Design for 50  characteristic impedance. RF input for Rx diversity ANT_DIV See section 2.2.1.1 Main DC Supply...
Page 117 LISA-U2 series - System Integration Manual 2.2.1.1 RF antenna connection The ANT pin (main RF input/output) and the ANT_DIV pin (RF input for diversity receiver provided by LISA-U230 modules) are very critical in layout design. Proper transition between ANT and ANT_DIV pads and the application board must be provided, implementing the following design-in guidelines for the layout of the application PCB close to the ANT and ANT_DIV pads: ...
Page 118 LISA-U2 series - System Integration Manual 500 µm 380 µm 500 µm L1 Copper 35 µm FR-4 dielectric 270 µm L2 Copper 35 µm FR-4 dielectric 760 µm L3 Copper 35 µm FR-4 dielectric 270 µm L4 Copper 35 µm Figure 57: Example of 50 ...
Page 119 LISA-U2 series - System Integration Manual  The transmission line should not have abrupt change to thickness and spacing to GND, but must be uniform and routed as smoothly as possible  The transmission line must be routed in a section of the PCB where minimal interference from noise sources can be expected ...
Page 120 LISA-U2 series - System Integration Manual 2.2.1.2 Main DC supply connection The DC supply of LISA-U2 modules is very important for the overall performance and functionality of the integrated product. For detailed description, check the design guidelines in section 1.5.2. Some main characteristics are: ...
Page 121 LISA-U2 series - System Integration Manual 2.2.1.3 USB signal The LISA-U2 modules include a high-speed USB 2.0 compliant interface with a maximum throughput of 480 Mb/s (see Section 1.9.3). Signals USB_D+ / USB_D- carry the USB serial data and signaling. The lines are used in single ended mode for relatively low speed signaling handshake, as well as in differential mode for fast signaling and data transfer.
Page 122 LISA-U2 series - System Integration Manual 2.2.1.4 Module grounding Good connection of the module with application board solid ground layer is required for correct RF performance. It significantly reduces EMC issues and provides a thermal heat sink for the module. ...
Page 123 LISA-U2 series - System Integration Manual  DDC (SCL, SDA): the DDC interface requires the same consideration regarding electro-magnetic interference as the SIM card. Keep the traces short and avoid coupling with RF line or sensitive analog inputs  UART (TXD, RXD, CTS, RTS, DSR, RI, DCD, DTR): the serial interface requires the same consideration regarding electro-magnetic interference as the SIM card.
Page 124: Footprint And Paste Mask
LISA-U2 series - System Integration Manual 2.2.2 Footprint and paste mask The following figure describes the footprint and provides recommendations for the paste mask for LISA-U2 modules. These are recommendations only and not specifications. Note that the copper and solder masks have the same size and position.
Page 125: Placement
LISA-U2 series - System Integration Manual 1.3 mm 5.25 mm 5.3 mm 5.3 mm 5.25 mm 1.4 mm 1.0 mm PIN 1 Exposed GND on LISA-U module bottom layer Signals keep-out areas on application board LISA-U2 bottom side (through module view) 22.4 mm Figure 62: Signals keep-out areas on the top layer of the application board, below LISA-U2 series modules 2.2.3 Placement...
Page 126: Thermal Guidelines
LISA-U2 series - System Integration Manual Thermal guidelines LISA-U2 module operating temperature range and module thermal resistance are specified in the LISA-U2 series Data Sheet [1]. The most critical condition concerning module thermal performance is the uplink transmission at maximum power (data upload or voice call in connected mode), when the baseband processor runs at full speed, radio circuits are all active and the RF power amplifier is driven to higher output RF power.
Page 127 LISA-U2 series - System Integration Manual Further hardware techniques to be used to improve heat dissipation in the application:  Force ventilation air-flow within mechanical enclosure  Provide a heat sink component attached to the module top side, with electrically insulated / high thermal conductivity adhesive, or on the backside of the application board, below the cellular module, as a large part of the heat is transported through the GND pads and dissipated over the backside of the application board For example, after the installation of a robust aluminum heat-sink with forced air ventilation on the back of the...
Page 128: Antenna Guidelines
824..960 MHz (GSM 850, GSM 900, UMTS B8)  1710..2170 MHz (GSM 1800, GSM 1900, UMTS B1)  LISA-U200, LISA-U201, LISA-U230: 824..960 MHz (GSM 850, GSM 900, UMTS B5, UMTS B6, UMTS B8)  1710..2170 MHz (GSM 1800, GSM 1900, UMTS B1, UMTS B2, UMTS B4) ...
Page 129 LISA-U2 series - System Integration Manual GSM antennas are typically available as:  Linear monopole: typical for fixed applications. The antenna extends mostly as a linear element with a dimension comparable to lambda/4 of the lowest frequency of the operating band. Magnetic base may be available.
Page 130: Antenna Termination
LISA-U2 series - System Integration Manual 2.4.1 Antenna termination The LISA-U2 modules are designed to work on a 50  load. However, real antennas have no perfect 50  load on all the supported frequency bands. Therefore, to reduce as much as possible performance degradation due to antenna mismatch, the following requirements should be met: Measure the antenna termination with a network analyzer: connect the antenna through a coaxial cable to the measurement device, the |S...
Page 131: Antenna Radiation
LISA-U2 series - System Integration Manual 2.4.2 Antenna radiation An indication of the antenna’s radiated power can be approximated by measuring the |S | from a target antenna to the measurement antenna, using a network analyzer with a wideband antenna. Measurements should be done at a fixed distance and orientation, and results compared to measurements performed on a known good antenna.
Page 132: Examples Of Antennas
LISA-U2 series - System Integration Manual 2.4.3 Examples of antennas Table 47 lists some examples of possible internal on-board surface-mount antennas Manufacturer Part Number Product Name Description Taoglas PA.25.A Anam GSM / WCDMA SMD Antenna 824..960 MHz, 1710..2170 MHz 36.0 x 6.0 x 5.0 mm Taoglas PA.710.A Warrior...
Page 133 LISA-U2 series - System Integration Manual Table 49 lists some examples of possible external antennas. Manufacturer Part Number Product Name Description Taoglas GSA.8827.A.101111 Phoenix GSM / WCDMA / LTE low-profile adhesive-mount Antenna with cable and SMA(M) connector 698..960 MHz, 1575.42 MHz, 1710..2170 MHz, 2490..2690 MHz 105 x 30 x 7.7 mm Taoglas GSA.8821.A.301721...
Page 134: Antenna Detection Functionality
LISA-U2 series - System Integration Manual 2.4.4 Antenna detection functionality The internal antenna detect circuit is based on ADC measurement at ANT: the RF port is DC coupled to the ADC unit in the baseband chip which injects a DC current (10 µA for 128 µs) on ANT and measures the resulting DC voltage to evaluate the resistance from ANT pad to GND.
Page 135: Esd Guidelines
LISA-U2 series - System Integration Manual For example: Consider a GSM antenna with built-in DC load resistor of 15 k. Using the +UANTR AT command, the module reports the resistance value evaluated from ANT connector to GND:  Reported values close to the used diagnostic resistor nominal value (i.e. values from 13 kΩ to 17 kΩ if a 15 kΩ...
Page 136: Esd Immunity Test Of U-Blox Lisa-U2 Series Reference Designs
LISA-U2 series - System Integration Manual 2.5.2 ESD immunity test of u-blox LISA-U2 series reference designs Although Electro-Magnetic Compatibility (EMC) certification is required for customized devices integrating LISA-U2 modules for R&TTED and European Conformance CE mark, EMC certification (including ESD immunity) has been successfully performed on LISA-U2 series modules reference designs according to the CENELEC EN 61000-4-2 [11], ETSI EN 301 489-1 [12], ETSI EN 301 489-7 [13] and ETSI EN 301 489-24 [14] European Norms.
Page 137: Esd Application Circuits
LISA-U2 series - System Integration Manual 2.5.3 ESD application circuits The application circuits described in this section are recommended and should be implemented in any device that integrates a LISA-U2 module, according to the application board classification (see ETSI EN 301 489-1 [12]), to satisfy the requirements for ESD immunity test summarized in Table 51.
Page 138 LISA-U2 series - System Integration Manual With LISA-U230 modules, the ANT_DIV pin provides ESD immunity up to +4 kV / -4 kV for direct Contact Discharge and up to +8 kV / -8 kV for Air Discharge: no further precaution to ESD immunity test is needed, as implemented in the EMC / ESD approved reference design of LISA-U230 modules.
Page 139 LISA-U2 series - System Integration Manual The maximum ESD sensitivity rating of all the other pins of the module is 1 kV (Human Body Model according to JESD22-A114F). Higher protection level could be required if the relevant pin is externally accessible on the application board.
Page 140: Features Description
LISA-U2 series - System Integration Manual 3 Features description 3.1 Network indication The GPIO1, GPIO2, GPIO3, GPIO4 or GPIO5 alternatively from their default settings, can be configured to indicate network status (i.e. no service, registered home network, registered visitor network, voice or data call enabled), by means of the AT+UGPIOC command.
Page 141: Tcp/Ip And Udp/Ip
LISA-U2 series - System Integration Manual 3.4 TCP/IP and UDP/IP Via the AT commands it is possible to access the TCP/IP and UDP/IP functionalities over the Packet Switched data connection. For more details about AT commands see the u-blox AT Commands Manual [2]. LISA-U2 modules support the Direct Link mode for TCP and UDP sockets.
Page 142: Ssl/Tls
LISA-U2 series - System Integration Manual LISA-U2 modules support also Secure Hyper-Text Transfer Protocol functionalities providing SSL encryption. For more details about AT commands see the u-blox AT Commands Manual [2]. 3.7 SSL/TLS The modules support the Secure Sockets Layer (SSL) / Transport Layer Security (TLS) with certificate key sizes up to 4096 bits to provide security over the FTP and HTTP protocols.
Page 143: Dual Stack Ipv4/Ipv6
LISA-U2 series - System Integration Manual Algorithm Supported feature 3DES AES128 AES256 Table 57: Encryption Algorithm Supported feature SHA/SHA1 SHA256 SHA384 Table 58: Message digest Description Registry value Supported feature TLS_RSA_WITH_AES_128_CBC_SHA 0x00,0x2F TLS_RSA_WITH_AES_128_CBC_SHA256 0x00,0x3C TLS_RSA_WITH_AES_256_CBC_SHA 0x00,0x35 TLS_RSA_WITH_AES_256_CBC_SHA256 0x00,0x3D TLS_RSA_WITH_3DES_EDE_CBC_SHA 0x00,0x0A TLS_RSA_WITH_RC4_128_MD5 0x00,0x04 TLS_RSA_WITH_RC4_128_SHA...
Page 144: Assistnow Clients And Gnss Integration
LISA-U2 series - System Integration Manual 3.9 AssistNow clients and GNSS integration For customers using u-blox GNSS receivers, LISA-U2 cellular modules feature embedded AssistNow clients. AssistNow A-GPS provides better GNSS performance and faster Time-To-First-Fix. The clients can be enabled and disabled with an AT command (see the u-blox AT Commands Manual [2]).
Page 145 LISA-U2 series - System Integration Manual ® 2. CellLocate server defines the area of Cell A visibility ® 3. If a new device reports the observation of Cell A CellLocate is able to provide the estimated position from the area of visibility 4.
Page 146: Hybrid Positioning
LISA-U2 series - System Integration Manual 3.10.2 Hybrid positioning With u-blox Hybrid positioning technology, u-blox cellular devices can be triggered to provide their current ® position using either a u-blox GNSS receiver or the position estimated from CellLocate . The choice depends on which positioning method provides the best and fastest solution according to the user configuration, exploiting the benefit of having multiple and complementary positioning methods.
Page 147: Foat Procedure
LISA-U2 series - System Integration Manual 3.12.2 FOAT procedure The application processor must proceed in the following way:  Send the AT+UFWUPD command through the UART or over the USB interface, specifying the file type and the desired baud rate ...
Page 148 LISA-U2 series - System Integration Manual A typical application using the SAP feature is the scenario where a device such as an embedded car-phone with an integrated LISA-U2 module uses a remote SIM included in an external user device (e.g. a simple SIM card reader or a portable phone), which is brought into the car.
Page 149: Smart Temperature Management
LISA-U2 series - System Integration Manual 3.15 Smart Temperature Management Cellular modules – independent of the specific model – always have a well defined operating temperature range. This range should be respected to guarantee full device functionality and long life span. Nevertheless there are environmental conditions that can affect operating temperature, e.g.
Page 150 LISA-U2 series - System Integration Manual Figure 73 shows the flow diagram implemented in LISA-U2 modules for the Smart Temperature Supervisor. IF STS enabled Feature enabled Feature disabled: (full logic or no action indication only) Read temperature <Ti<t Temperature is within normal operating range Previously...
Page 151: Threshold Definitions
LISA-U2 series - System Integration Manual 3.15.2 Threshold Definitions When the application of cellular module operates at extreme temperatures with Smart Temperature Supervisor enabled, the user should note that outside the valid temperature range the device will automatically shut down as described above.
Page 152: Network Friendly Mode
LISA-U2 series - System Integration Manual 3.18 Network Friendly Mode Not supported by "01", "x2" and "68" product versions. The Network Friendly Mode (NFM) feature provides a more efficient access to the network since it regulates the number of network accesses per service type over a configurable amount of time, avoiding scenarios in which the cellular module continuously retries a registration or a PDP context activation procedure until it is successful.
Page 153: Handling And Soldering
LISA-U2 series - System Integration Manual 4 Handling and soldering No natural rubbers, no hygroscopic materials or materials containing asbestos are employed. 4.1 Packaging, shipping, storage and moisture preconditioning For information pertaining to reels and tapes, Moisture Sensitivity levels (MSD), shipment and storage information, as well as drying for preconditioning see the LISA-U2 series Data Sheet [1] and u-blox Package Information Guide [21].
Page 154 LISA-U2 series - System Integration Manual Preheat phase Initial heating of component leads and balls. Residual humidity will be dried out. This preheat phase will not replace prior baking procedures.  Temperature rise rate: max 3°C/s If the temperature rise is too rapid in the preheat phase it may cause excessive slumping.
Page 155: Optical Inspection
LISA-U2 series - System Integration Manual 4.2.3 Optical inspection After soldering the LISA-U2 modules, inspect the modules optically to verify that the module is properly aligned and centered. 4.2.4 Cleaning Cleaning the soldered modules is not recommended. Residues underneath the modules cannot be easily removed with a washing process.
Page 156: Casting
LISA-U2 series - System Integration Manual 4.2.10 Casting If casting is required, use viscose or another type of silicone-pottant. The OEM is strongly advised to qualify such processes in combination with the LISA-U2 modules before implementing this in the production. Casting will void the warranty.
Page 157: Product Testing
LISA-U2 series - System Integration Manual 5 Product Testing 5.1 u-blox in-series production test u-blox focuses on high quality for its products. All units produced are fully tested. Defective units are analyzed in detail to improve the production quality. This is achieved with automatic test equipment, which delivers a detailed test report for each unit. The following measurements are done: ...
Page 158: Go/No Go' Tests For Integrated Devices
LISA-U2 series - System Integration Manual  Component assembly on the device; it should be verified that: Communication with host controller can be established The interfaces between module and device are working Overall RF performance test of the device including antenna Dedicated tests can be implemented to check the device.
Page 159 LISA-U2 series - System Integration Manual Wireless Wideband Antenna Antenna Application LISA-U2 series Spectrum Processor Analyzer Commands Power Meter Application Board Wireless Wideband Antenna Antenna Application LISA-U2 series Processor Commands Signal Generator Application Board Figure 76: Setup with spectrum analyzer and signal generator for radiated measurement This feature allows the measurement of the transmitter and receiver power levels to check component assembly related to the module antenna interface and to check other device interfaces from which depends the RF performance.
Page 160 LISA-U2 series - System Integration Manual To avoid module damage during transmitter test when good antenna termination is not guaranteed, use a low Power Control Level (i.e. PCL lower or equal to 15). u-blox assumes no responsibilities for module damaging caused by an inappropriate use of this feature. 2.
Page 161: Appendix
For HSDPA category 14, 6-band 3G, Digital Audio Interfaces support, select a LISA-U230 module. For HSDPA category 8, 6-band 3G, Digital Audio Interfaces support, select a suitable LISA-U200 module. For HSDPA category 8, 5-band 3G, Digital Audio Interfaces support, select LISA-U201 module.
Page 162: Hardware Migration
LISA-U2 series - System Integration Manual A.3 Hardware migration A.3.1 Hardware migration from LISA-U1 series to LISA-U2 series modules LISA-U2 series modules have been designed with backward compatibility in mind but some minor differences were unavoidable. These minor differences will however not be relevant for the majority of the LISA-U1 series designs.
Page 163: Pin-Out Comparison Lisa-U1 Series Vs. Lisa-U2 Series
LISA-U2 series - System Integration Manual The 5 pins of the SPI / IPC Serial Interface can be configured as GPIOs on LISA-U2 series. The DDC (I C) interface of LISA-U2 series modules can be used to communicate with u-blox GNSS receivers and at the same time to control an external audio codec.
Page 164 LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series Name Description Name Description Remarks for Migration Ground Ground V_BCKP RTC supply V_BCKP RTC supply V_BCKP operating characteristics difference: input/output input/output LISA-U1 series:  V_BCKP output = 2.3V typ. V_BCKP input = 1.0V min / 2.5V max LISA-U2 series: ...
Page 165 LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series Name Description Name Description Remarks for Migration PWR_ON Power-on input PWR_ON Power-on input PWR_ON switch-on low pulse time difference: LISA-U1 series:  L-level pulse time = 5 ms min LISA-U2 series: ...
Page 166 LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series Name Description Name Description Remarks for Migration GPIO3 GPIO GPIO3 GPIO Configurable GPIO, 1.8V typ. LISA-U1 series:  Output driver strength = 4 mA LISA-U2 series:  Output driver strength = 6 mA Functions on all LISA-U series: Pad disabled Input / Output...
Page 167 LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series Name Description Name Description Remarks for Migration I2S_TXD LISA-U120, I2S_TXD LISA-U2 series: I2S_TXD, 1.8V typ. LISA-U130: S Tx data output LISA-U120, LISA-U130:  S Tx data output Output driver strength = 2.5 mA LISA-U100, LISA-U2 series: ...
Page 168 LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series Name Description Name Description Remarks for Migration RSVD RESERVED pin CODEC_CLK LISA-U2 series: LISA-U2 series: Clock output Digital clock output for external audio codec  Output driver strength = 4 mA ...
Page 169 Band I (2100), Band VIII (900) LISA-U200-00S:  Band I (2100), Band II (1900), Band V (850), Band VI (800) All LISA-U2 series except LISA-U200-00S:  Band I (2100), Band II (1900), Band IV (1700), Band V (850), Band VI (800), Band VIII (900) Ground Ground …...
Page 170: Layout Comparison Lisa-U1 Series Vs. Lisa-U2 Series
LISA-U2 series - System Integration Manual A.3.3 Layout comparison LISA-U1 series vs. LISA-U2 series Additional signals keep-out area must be implemented on the top layer of the application board, below LISA-U2 modules, due to GND opening on module bottom layer, as described in Figure 79 and Figure 80. 11.85 mm 5.3 mm 5.25 mm 1.4 mm...
Page 171: B Glossary
LISA-U2 series - System Integration Manual B Glossary Analog to Digital Converter Application Processor AT Command Interpreter Software Subsystem, or attention CBCH Cell Broadcast Channel Coding Scheme Circuit Switched Data Clear To Send Direct Current Data Carrier Detect Data Communication Equipment Digital Cellular System Display Data Channel Digital Signal Processing...
Page 172 LISA-U2 series - System Integration Manual Inter Processor Communication Low Noise Amplifier Modulation Coding Scheme Network Operating Mode Power Amplifier PBCCH Packet Broadcast Control Channel Pulse Code Modulation Personal Communications Service Pulse Frequency Modulation Power Management Unit Radio Frequency Ring Indicator Real Time Clock Request To Send RX Data...
Page 173: Related Documents
LISA-U2 series - System Integration Manual Related documents u-blox LISA-U2 series Data Sheet, Docu No UBX-13001734 u-blox AT Commands Manual, Docu No UBX-13002752 ITU-T Recommendation V.24, 02-2000. List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit-terminating equipment (DCE). http://www.itu.int/rec/T-REC-V.24-200002-I/en 3GPP TS 27.007 - AT command set for User Equipment (UE) (Release 1999) 3GPP TS 27.005 - Use of Data Terminal Equipment - Data Circuit terminating;...
Page 174: Revision History
Update to Advance Information status further revision history. This is old and Updated module behavior during power-off sequence. Added LISA-U200-00S ESD application very detailed, so unnecessary. circuit for antenna port. Added application circuit for the module status indication function.
Page 175: Contact
LISA-U2 series - System Integration Manual Contact For complete contact information visit us at www.u-blox.com u-blox Offices North, Central and South America Headquarters Asia, Australia, Pacific Europe, Middle East, Africa u-blox America, Inc. u-blox Singapore Pte. Ltd. u-blox AG Phone: +1 703 483 3180 Phone: +65 6734 3811...

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