Sony Ericsson CM-42 Integrator's Manual
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Sony Ericsson CM-42 Integrator's Manual

Sony Ericsson CM-42 Integrator's Manual

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CM-42 Technical Description
PAGE 1 OF 38
CM-42 Technical Description
SEM/CX-02:0076/DES A

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Summary of Contents for Sony Ericsson CM-42

  • Page 1 CM-42 Technical Description PAGE 1 OF 38 CM-42 Technical Description SEM/CX-02:0076/DES A...

  • Page 2: Table Of Contents

    OW TO READ THE MANUAL ............................4 ERVICE AND UPPORT 1.3.1 Web Pages..............................4 1.3.2 Component Suppliers..........................5 ............................5 ELATED OCUMENTS ..............................6 BBREVIATIONS INTEGRATING THE CM-42 MODULE........................7 ................................7 VERVIEW ..........................7 ECHANICAL ESCRIPTION ........................9 YSTEM ONNECTOR NTERFACE 2.3.1 Overview ..............................9 2.3.2 General Electrical And Logical Characteristics ..................13 2.3.3...
  • Page 3 Table 3: Mobile Station Nominal Analog Power Levels....................13 Table 4: Mobile Station CDMA Maximum Output Power....................13 Table 5: Power Consumption............................14 Table 6: CM-42 Power Supply Signals ........................14 Table 7: CM-42 Ground Signals ..........................15 Table 8: CM-42 Audio Signals ............................15 Table 9: CM-42 Analog Audio Signals........................16 Table 10: Audio Characteristics ..........................16...

  • Page 4: Introduction To The Technical Description

    1.1 Overview This manual is for use as a guide to the setup, installation, and use of the CM-42 module into your application. The module may be tested using the Developer's board, which is supplied together with all the necessary tools in the Developer’s Kit.

  • Page 5: Component Suppliers

    Amphenol RF / Various http://www.amphenolrf.com and cabling 1.4 Related Documents CM-42 AT Command Manual - Details the AT command interface for the CM-42. The CM-42 is based upon the following mobile standards: • IS-2000 Release 0 (1XRTT), MOB_P_REV 6 - CDMA protocol •...

  • Page 6: Abbreviations

    CM-42 Technical Description PAGE 6 OF 38 1.5 Abbreviations AGND Analog GrouND Attention command Clear To Send Data Carrier Detect DFMS Data From Mobile Station DTMS Data To Mobile Station Data Terminal Ready Electromagnetic Interference Electrostatic Discharge Chassis GrouND International Reference Alphabet...

  • Page 7: Integrating The Cm-42 Module

    All initial configuration, mode control, and operational commands are issued to the CM-42 module over an RS-232 serial port using a flexible AT command format, as described in the AT Command section of this document.

  • Page 8: Figure 2: Physical Dimensions Of The Cm-42

    CM-42 Technical Description PAGE 8 OF 38 Figure 2: Physical Dimensions of the CM-42 SEM/CX-02:0076/DES A...

  • Page 9: System Connector Interface

    CM-42 Technical Description PAGE 9 OF 38 2.3 System Connector Interface 2.3.1 Overview External interfaces to the module are made primarily through a 40-pin, standard 0.050-inch pitch, ODU header shown below. Figure 3: 40-pin system connector SEM/CX-02:0076/DES A...

  • Page 10: Figure 4: Pin Positions In 40-Pin System Connector

    CM-42 Technical Description PAGE 10 OF 38 Pin #1, Start of odd row Pin #1, Start of odd row Pin #2, Start of even row Figure 4: Pin positions in 40-pin system connector SEM/CX-02:0076/DES A...

  • Page 11: Figure 5: 40-Pin System Connector Footprint

    CM-42 Technical Description PAGE 11 OF 38 Figure 5: 40-pin system connector footprint SEM/CX-02:0076/DES A...

  • Page 12: Table 1: Pin-Out Of The System Connector Header

    CM-42 Technical Description PAGE 12 OF 38 Table 1 shows the PIN-connection of the different signals connected to the interface as well as a short description of the signals. Signal Description I/O_1 General Purpose Binary Input / Output # 1...

  • Page 13: General Electrical And Logical Characteristics

    2.3.3 Nominal Output Power Levels The CM-42 is able to operate in several modes and different output power levels. Applications may require output power levels similar to those in a handheld cellular phone or higher levels commonly required when in rural areas.

  • Page 14: Power Consumption

    Table 6: CM-42 Power Supply Signals The ground signals in the CM-42 are Analog Ground, AGND, connected to pin number 9, and Digital Ground, GND, connected to the system connector interface through pin numbers 5, 6, 8, 21 and 22.

  • Page 15: Module_Pwr_En_B

    AGND Analog Ground Digital Ground Digital Ground Table 7: CM-42 Ground Signals Analog Ground (AGND) • The AGND lead is the analog audio reference ground. It is the return signal for Audio To Mobile Station (ATMS), Audio From Mobile Station (AFMS).

  • Page 16: Analog Audio

    Description AFMS Audio Output From Module ATMS Audio Input To Module AGND Analog Reference Table 9: CM-42 Analog Audio Signals Module audio output 300 – 3400 Hz Rout 100 Ω Output Impedance Drive capacity into 10 kΩ 3.77 V max. or 2.5 dBV...

  • Page 17: Digital Audio

    BIAS 2.3.4.2 Digital Audio The CM-42 provides digital audio capability over the system connector. The digital audio signals enable the connection of a digital audio source. The receiver is bypassing the analog audio processing functions performed within the module. The digital audio interface includes the following PCM signals:...

  • Page 18: Figure 6: Pcm Timing Diagram

    Data Format The CM-42 module implements a 13-bit PCM with the 13-bit data embedded in a 16-bit word as follows. Each PCM word shall contain 16-bits D15 – D00. D15 – D03 is the 2´s-complement value of the 13-bit PCM, with D15 as the sign bit.

  • Page 19: Serial Data Interface

    CM-42 Technical Description PAGE 19 OF 38 The meaning and value of the timing parameters are described in Table 12. Name Description Typical Unit µs PCM_SYNC cycle time. SYNC PCM_SYNC frequency µs PCM_SYNC asserted time. 62.4 62.5 SYNCA µs PCM_SYNC de-asserted time.

  • Page 20: General Purpose Signals

    The module provides two general-purpose binary inputs, two general-purpose binary outputs and four general- purpose input/outputs on the system connector. The AT*EGPI command described in the CM-42 AT Command Manual, allows an application to query the states of the two general-purpose binary inputs.

  • Page 21: System Connector Io Functionality

    CM-42 Technical Description PAGE 21 OF 38 2.3.7 System connector IO functionality Note 1: The application IO can be one of the following listed types: • Logic input (no pull up or pull down resistors required). • Logic open-collector input.

  • Page 22: Table 15: Pin Direction For General Purpose Signals

    CM-42 Technical Description PAGE 22 OF 38 Group Pin No Name Application Requirements App I/O PCMDLD Logic input from phone module. PCMULD Logic output to phone module. PCMSYNC Logic input from phone module. PCMCLK Logic input from phone module. Analog reference. This signal is an analog reference output by the phone module.

  • Page 23: Recommended Circuitry

    CM-42 Technical Description PAGE 23 OF 38 2.3.8 Recommended Circuitry Abbreviations: • - Represents the logic supply voltage used by the application. • VREF - Current amplified reference voltage used as supply voltage for all logic interface circuitry. Component proposals: •...

  • Page 24: Figure 8: Hw_Sd Diagram

    CM-42 Technical Description PAGE 24 OF 38 2.3.8.1.1 MODULE_PWR_EN_B This signal, located on pin 12 in the system connector, enables the main 5V supply in the phone module so that it powers on. This is an open collector input to the phone module. Its reference voltage is the main 5V supply.

  • Page 25: Figure 9: Shutdown Sequence Diagram

    CM-42 Technical Description PAGE 25 OF 38 Shut down sequence: To request a shutdown of the phone module, the application should provide an active low pulse with a duration of 100 ± 25 ms on the HW_SD pin through an open collector output.

  • Page 26: Data Group Recommended Circuitry

    CM-42 Technical Description PAGE 26 OF 38 2.3.8.2 Data Group Recommended Circuitry The data group contains six signals, three output signals from application, two input signals to application, and one I/O signal. Phone Module Application 1 - 100k VREF 30, RD (DFMS)

  • Page 27: Pcm Group Recommended Circuitry

    CM-42 Technical Description PAGE 27 OF 38 2.3.8.2.1 VPPFLASH/DCD This signal, located on pin 23 in the system connector, can be used by the application to enable flashing of the phone module. To enter flash-mode, the application shall set VPPFLASH_EN active high, then enable the MODULE_PWR_EN_B pin.

  • Page 28: Analog Audio Group Recommended Circuitry

    CM-42 Technical Description PAGE 28 OF 38 2.3.8.4 Analog Audio Group Recommended Circuitry 2.3.8.4.1 Creating an analog ground An analog ground plane should be generated, which connects to GND in one point so that high frequency digital current is not floating through the analog ground. Connecting the analog ground in only one point avoids ground currents from power supplies and other high current circuitry from creating noise in the analog circuitry.

  • Page 29: Figure 13: Bias Reference Diagram

    CM-42 Technical Description PAGE 29 OF 38 2.3.8.4.2 Creating an analog reference voltage (BIAS) The BIAS reference should be generated from the analog supply voltage (VANA) and be referenced to the analog ground. This reference shall be used to bias all analog circuitry in the application.

  • Page 30: Figure 14: Microphone Path Diagram

    CM-42 Technical Description PAGE 30 OF 38 2.3.8.4.4 Microphone path An application using the analog audio interface must re-reference the signal from its own internal BIAS to AGND received from the module. The figure below shows an example of a microphone implementation.

  • Page 31: Figure 15: Loudspeaker Diagram

    CM-42 Technical Description PAGE 31 OF 38 2.3.8.4.5 Loudspeaker path An application using the analog audio interface must re-reference the AFMS-signal from AGND to its own internal BIAS. The figure shows a differential implementation. C1 is chosen to create the correct HP frequency response. R1 and R2 determine the gain, and C2 and R2 determine the LP frequency response.

  • Page 32: Antenna Connector

    CM-42 Technical Description PAGE 32 OF 38 2.4 Antenna Connector A variety of antenna connectors are available for the CM-4X module including SMA, SMB, MCX, and BNC. A standard 5-pin, thru-hole pattern has been selected because of the wide variety of compatible connectors available and also for the maximum mechanical strength.

  • Page 33: Functional Description

    2.5 Functional Description This section describes the functionality capability of the CM-42 module. The module performs a set of telecom services according to TIA/EIA-IS-2000. The functions of the display and keypad, usually used to make calls, are implemented by issuing AT Commands over the serial interface. To find out how to send SMS messages, make data calls, use the burst mode services and handle the Phone Book.

  • Page 34: Value Carrier Services

    CM-42 Technical Description PAGE 34 OF 38 2.5.2 Value Carrier Services The module supports the following value carrier services: • Caller ID. Enables/disables the caller’s ID from being sent to the called party. • Call Forwarding. Permits the called module to have the network send incoming calls to a desired phone number.

  • Page 35: Services For Short Message Control

    Message reporting – The module reports incoming messages received over the air interface. 2.5.5 Data Functionality CM-42 data services are based on the standard “TIA/EIA Interim Standard, Data Service Options for Wideband Spread Spectrum Systems” (TIA/EIA/IS-707), which is designed to provide async data, fax, and packet data transfer at various data rates.

  • Page 36: Over The Air Service Provisioning (Ota)

    Systems. 2.6 Hints For Integrating The Module This section, which gives you advice and helpful hints on how to integrate the CM-42 with the application, should be taken as a guide. Note! The circuits on the test board are not shielded. Therefore, take proper precautions for avoiding ESD and EMI.

  • Page 37: Antenna

    CM-42 Technical Description PAGE 37 OF 38 2.6.4 Antenna 2.6.4.1 Antenna Type When choosing an antenna for your application you must consider the following requirements: • The antenna must be designed for the AMPS/CDMA 800 and CDMA 1900 MHz frequency band (dual band) for the CM-42.

  • Page 38: Technical Data

    CM-42 Technical Description PAGE 38 OF 38 2.7 Technical Data Mechanical specifications Maximum length: 155.70 mm Maximum width: 49.50 mm Maximum thickness: 18.97 mm Weight: 68.2 g VCC_5V VCC_12V Power supply voltage, normal operation Nominal Voltage: 5.00 Volts 13.8 Volts Voltage range: 4.50 –...

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