Single-chip 802.11 b/g/n mac/baseband/radio with bluetooth 4.1 (104 pages)
Summary of Contents for Cypress CYW43340
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Please note that Cypress is an Infineon Technologies Company. The document following this cover page is marked as “Cypress” document as this is the company that originally developed the product. Please note that Infineon will continue to offer the product to new and existing customers as part of the Infineon product portfolio.
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(2.4 GHz / 5 GHz) IEEE 802.11 a/b/g and single–stream IEEE 802.11n MAC/ baseband/radio, and Bluetooth 5.0. The CYW43340 includes integrated power amplifiers and LNAs for the 2.4 GHz and 5 GHz WLAN bands, and an integrated 2.4 GHz T/R switch. This greatly reduces the external part count, PCB footprint, and cost of the solution.
Figure 2 shows the interconnect of all the major physical blocks in the CYW43340 and their associated external interfaces, which are described in greater detail in the following sections.
PRELIMINARY CYW43340 1.2 Features The CYW43340 supports the following WLAN and Bluetooth features: IEEE 802.11a/b/g/n dual-band radio with internal Power Amplifiers, LNAs, and T/R switches ■ Bluetooth 5.0 with integrated Class 1 PA ■ Concurrent Bluetooth, and WLAN operation ■...
IEEE 802.11h 5 GHz Extensions ❐ IEEE 802.11i MAC Enhancements ❐ IEEE 802.11r Fast Roaming Support ❐ IEEE 802.11k Radio Resource Measurement ❐ The CYW43340 supports the following security features and proprietary protocols: Security: ■ ❐ WPA™ Personal ❐ WPA2™ Personal ❐...
2.1 Power Supply Topology One Buck regulator, multiple LDO regulators, and a Power Management Unit (PMU) are integrated into the CYW43340. All regulators are programmable via the PMU. These blocks simplify power supply design for Bluetooth, and WLAN in embedded designs.
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2.2 WLAN Power Management The CYW43340 has been designed with the stringent power consumption requirements of mobile devices in mind. All areas of the chip design are optimized to minimize power consumption. Silicon processes and cell libraries were chosen to reduce leakage current and supply voltages.
VDDIO power applied to it. When the CYW43340 is powered on from this state, it is the same as a normal power-up and the device does not retain any information about its state from before it was powered down.
Figure 5 Figure 1. If the TCXO is dedicated to driving the CYW43340, it should be connected to the WRF_XTAL_OP pin through an external 1000 pF coupling capacitor, as shown in Figure 5. The internal clock buffer connected to this pin will be turned OFF when the CYW43340 goes into sleep mode.
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PRELIMINARY CYW43340 Figure 5. Recommended Circuit to Use with an External Dedicated TCXO 1000 pF TCXO WRF_XTAL_OP WRF_XTAL_ON WRF_TCXO_CK WRF_TCXO_VDD Figure 6. Recommended Circuit to Use with an External Shared TCXO To other devices TCXO W RF_TCXO_CK W RF_TCXO_VDD To always present 1.8V supply W RF_XTAL_OP W RF_XTAL_ON Table 3.
19.2, 19.44, 19.68, 19.8, 20, 26, 37.4, and 52 MHz, but also other frequencies in this range, with approximately 80 Hz resolution. The CYW43340 must have the reference frequency set correctly in order for any of the UART or PCM interfaces to function correctly, since all bit timing is derived from the reference frequency.
3.4 External 32.768 kHz Low-Power Oscillator The CYW43340 uses a secondary low frequency clock for low-power-mode timing. Either the internal low-precision LPO or an external 32.768 kHz precision oscillator is required. The internal LPO frequency range is approximately 33 kHz ± 30% over process, voltage, and temperature, which is adequate for some applications.
The CYW43340 is the optimal solution for any Bluetooth voice and/or data application. The Bluetooth subsystem presents a standard Host Controller Interface (HCI) via a high speed UART and PCM for audio. The CYW43340 is qualified for Bluetooth 5.0 and supports all Bluetooth 4.0 features including BR/EDR and LE.
4.2 Bluetooth Radio The CYW43340 has an integrated radio transceiver that has been optimized for use in 2.4 GHz Bluetooth wireless systems. It has been designed to provide low-power, low-cost, robust communications for applications operating in the globally available 2.4 GHz unlicensed ISM band.
❐ 5.3 Test Mode Support The CYW43340 fully supports Bluetooth Test mode as described in Part I:1 of the Specification of the Bluetooth System Version 3.0. This includes the transmitter tests, normal and delayed loopback tests, and reduced hopping sequence.
5.4.2 Host Controller Power Management When running in UART mode, the CYW43340 may be configured so that dedicated signals are used for power management hand- shaking between the CYW43340 and the host. The basic power saving functions supported by those hand-shaking signals include the standard Bluetooth defined power savings modes and standby modes of operation.
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Input voltages must remain within the limits defined for normal operation. This is done to prevent current paths or create loading on any digital signals in the system and enables the CYW43340 to be fully integrated in an embedded device to take full advantage of the lowest power-saving modes.
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5.4.9 Burst Buffer Operation The CYW43340 has a data buffer that can buffer data being sent over the HCI and audio transports, then send the data at an increased rate. This mode of operation allows the host to sleep for the maximum amount of time, dramatically reducing system current consumption.
5.5 Adaptive Frequency Hopping The CYW43340 gathers link quality statistics on a channel by channel basis to facilitate channel assessment and channel map selection. The link quality is determined using both RF and baseband signal processing to provide a more accurate frequency-hop map.
6.2 Reset The CYW43340 has an integrated power-on reset circuit that resets all circuits to a known power-on state. The BT power-on reset (POR) circuit is out of reset after BT_REG_ON goes High. If BT_REG_ON is low, then the POR circuit is held in reset.
The CYW43340 may be configured to generate and accept several different data formats. For conventional narrowband speech mode, the CYW43340 uses 13 of the 16 bits in each PCM frame. The location and order of these 13 bits can be configured to support various data formats on the PCM interface.
7.2 UART Interface The CYW43340 uses a UART for Bluetooth. The UART is a standard 4-wire interface (RX, TX, RTS, and CTS) with adjustable baud rates from 9600 bps to 4.0 Mbps. The interface features an automatic baud rate detection capability that returns a baud rate selection.
S WS is low, and right-channel data is transmitted when I S WS is high. Data bits sent by the CYW43340 are synchronized with the falling edge of I2S_SCK and should be sampled by the receiver on the rising edge of I2S_SSCK.
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PRELIMINARY CYW43340 Table 14. Timing for I S Transmitters and Receivers Transmitter Receiver Lower LImit Upper Limit Lower Limit Upper Limit Notes Clock Period T – – – – – – Master Mode: Clock generated by transmitter or receiver 0.35T –...
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PRELIMINARY CYW43340 Figure 17. I S Transmitter Timing > 0.35T > 0.35T = 2.0V = 0.8V > 0 < 0.8T SD and WS T = Clock period = Minimum allowed clock period for transmitter T = T * t is only relevant for transmitters in slave mode. Figure 18. I S Receiver Timing > 0.35T > 0.35 = 2.0V = 0.8V > 0.2T > 0 SD and WS...
8.3 GPIO Interface On the WLBGA package, there are 8 GPIO pins available on the WLAN section of the CYW43340 that can be used to connect to various external devices. Upon power up and reset, these pins become tristated. Subsequently, they can be programmed to be either input or output pins via the GPIO control register.
One UART interface can be enabled by software as an alternate function on pins WL_GPIO4 and WL_GPIO_5. Provided primarily for debugging during development, this UART enables the CYW43340 to operate as RS-232 data termination equipment (DTE) for exchanging and managing data with other serial devices. It is compatible with the industry standard 16550 UART and provides a FIFO size of 64 ×...
9. WLAN Host Interfaces 9.1 SDIO v2.0 The CYW43340 WLAN section supports SDIO version 2.0, including the following modes: Default speed up to 25 MHz, including 1- and 4-bit modes (3.3V signaling) High speed up to 50 MHz (3.3V signaling) It also has the ability to map the interrupt signal onto a GPIO pin for applications requiring an interrupt different than what is provided by the SDIO interface.
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PRELIMINARY CYW43340 Figure 21. Signal Connections to SDIO Host (SD 1-Bit Mode) DATA SD Host CYW43340 Figure 22. SDIO Pull-Up Requirements VDDIO_SD (see note) (see note) SD Host CYW43340 DATA[3:0] Note: Per Section 6 of the SDIO specification, 10 to 100 kohm pull-ups are required on the four DATA lines and the CMD line. This requirement must be met during all operating states by using external pull-up resistors or properly programming internal SDIO Host pull-ups. The CYW43340 does not have internal pull-ups on these lines. Document Number: 002-14943 Rev. *N Page 37 of 96 Arrow.com. Arrow.com.
PRELIMINARY CYW43340 9.2 HSIC Interface As an alternative to SDIO, an HSIC host interface can be enabled using the strapping option pins strap_host_ifc_[3:1]. HSIC is a simplified derivative of the USB2.0 interface designed to replace a standard USB PHY and cable for short distances (up to 10 cm) on board point-to-point connections.
10. Wireless LAN MAC and PHY 10.1 MAC Features The CYW43340 WLAN media access controller (MAC) supports features specified in the IEEE 802.11 base standard, and amended by IEEE 802.11n. The salient features are listed below: Transmission and reception of aggregated MPDUs (A-MPDU) ■...
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PRELIMINARY CYW43340 Figure 24. WLAN MAC Architecture Embedded CPU Interface Host Registers, DMA Engines TX-FIFO RX-FIFO 32 KB 10 KB UCODE Memory Backoff, BTCX TKIP, AES, WAPI SHM IHR Shared Memory 6 KB EXT- IHR TX A-MPDU RX A-MPDU MAC-PHY Interface The programmable state machine (PSM) is a micro-coded engine, which provides most of the low-level control to the hardware, to implement the IEEE 802.11 specification.
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PRELIMINARY CYW43340 The transmit engine (TXE) constitutes the transmit data path of the MAC. It coordinates the DMA engines to store the transmit frames in the TXFIFO. It interfaces with WEP module to encrypt frames, and transfers the frames across the MAC-PHY interface at the appropriate time determined by the channel access mechanisms.
CYW43340 10.2 WLAN PHY Description The CYW43340 WLAN Digital PHY is designed to comply with IEEE 802.11a/b/g/n single-stream to provide wireless LAN connectivity supporting data rates from 1 Mbps to 150 Mbps for low-power, high-performance handheld applications. The PHY has been designed to work with interference, radio nonlinearity, and impairments. It incorporates efficient implementations of the filters, FFT and Viterbi decoder algorithms.
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One of the key features of the PHY is its space-time block coding (STBC) capability. The STBC scheme can obtain diversity gains in a fading channel environment. On a connection with an access point that uses multiple transmit antennas and supports STBC, the CYW43340 can process two space-time streams to improve receiver performance. Figure 26 is a block diagram showing the STBC implementation in the receive path.
11. WLAN Radio Subsystem The CYW43340 includes an integrated dual-band WLAN RF transceiver that has been optimized for use in 2.4 GHz and 5 GHz Wireless LAN systems. It has been designed to provide low-power, low-cost, and robust communications for applications operating in the globally available 2.4 GHz unlicensed ISM or 5 GHz U-NII bands.
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PRELIMINARY CYW43340 Table 17. WLBGA Signal Descriptions WLBGA Ball Signal Name Type Description WLAN RF Signal Interface WRF_RFIN_2G 2.4G RF input WRF_RFIN_5G 5G RF input WRF_RFOUT_2G 2.4G RF output WRF_RFOUT_5G 5G RF output WRF_GPIO_OUT – RF Control Signals RF_SW_CTRL_0 RF switch enable...
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PRELIMINARY CYW43340 Table 17. WLBGA Signal Descriptions (Cont.) WLBGA Ball Signal Name Type Description WLAN GPIO Interface WL_GPIO_0 This pin can be programmed by software to be a GPIO. WL_GPIO_1 This pin can be programmed by software to be a GPIO or an AP_READY or HSIC_HOST_READY input from the host indicating that it is awake.
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PRELIMINARY CYW43340 Table 17. WLBGA Signal Descriptions (Cont.) WLBGA Ball Signal Name Type Description Clocks WRF_XTAL_CAB_XON XTAL oscillator output WRF_XTAL_CAB_XOP XTAL oscillator input WRF_TCXO_CKIN2V TCXO buffered input. When not using a TCXO this pin should be connected to ground. CLK_REQ External system clock request—Used when the...
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Miscellaneous WL_REG_ON Used by PMU to power up or power down the internal CYW43340 regulators used by the WLAN section. Also, when deasserted, this pin holds the WLAN section in reset. This pin has an internal 200 k pull-down resistor that is enabled by default.
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PRELIMINARY CYW43340 Table 17. WLBGA Signal Descriptions (Cont.) WLBGA Ball Signal Name Type Description Integrated Voltage Regulators SR_VDDBATA5V Quiet VBAT SR_VDDBATP5V Power VBAT SR_VLX CBUCK switching regulator output. See Table 35 on page 77 for details of the inductor and capacitor required on this output.
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PRELIMINARY CYW43340 Table 17. WLBGA Signal Descriptions (Cont.) WLBGA Ball Signal Name Type Description Miscellaneous Power Supplies HSIC_DVDD1P2_OUT 1.2V supply for HSIC interface. This pin can be NO_CONNECT when HSIC is not used. VDDC_E9 Core supply for WLAN and BT.
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PRELIMINARY CYW43340 12.2.1 WLAN GPIO Signals and Strapping Options The pins listed in Table 18 on page 53 are sampled at power-on reset (POR) to determine the various operating modes. Sampling occurs a few milliseconds after an internal POR or deassertion of the external POR. After the POR, each pin assumes the GPIO or alternative function specified in the signal descriptions table.
PRELIMINARY CYW43340 13. DC Characteristics Note: Values in this data sheet are design goals and are subject to change based on the results of device characterization. 13.1 Absolute Maximum Ratings Caution! The absolute maximum ratings in Table 21 indicate levels where permanent damage to the device can occur, even if these limits are exceeded for only a brief duration.
PRELIMINARY CYW43340 13.3 Electrostatic Discharge Specifications Extreme caution must be exercised to prevent electrostatic discharge (ESD) damage. Proper use of wrist and heel grounding straps to discharge static electricity is required when handling these devices. Always store unused material in its antistatic packaging.
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PRELIMINARY CYW43340 Table 24. Recommended Operating Conditions and DC Characteristics (Cont.) Value Parameter Symbol Unit Minimum Typical Maximum Other Digital I/O Pins For VDDIO = 1.8V: Input high voltage 0.65 × VDDIO – – Input low voltage – 0.35 × VDDIO Output high voltage @ 2 mA VDDIO –...
PRELIMINARY CYW43340 14. Bluetooth RF Specifications Note: Values in this data sheet are design goals and are subject to change based on the results of device characterization. Unless otherwise stated, limit values apply for the conditions specified in Table 22: “Environmental Ratings,” on page 57 Table 24: “Recommended Operating Conditions and DC Characteristics,”...
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PRELIMINARY CYW43340 Table 25. Bluetooth Receiver RF Specifications Parameter Conditions Minimum Typical Maximum Unit The specifications in this table are measured at the Chip port output unless otherwise specified. Note: General Frequency range – 2402 – 2480 RX sensitivity GFSK, 0.1% BER, 1 Mbps –...
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PRELIMINARY CYW43340 Table 25. Bluetooth Receiver RF Specifications (Cont.) Parameter Conditions Minimum Typical Maximum Unit 2110–2170 MHz – –147 – dBm/Hz a. The Bluetooth reference level for the required signal at the Bluetooth chip port is 3 dB higher than the typical sensitivity level. Document Number: 002-14943 Rev. *N Page 64 of 96 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.
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PRELIMINARY CYW43340 Table 26. Bluetooth Transmitter RF Specifications Parameter Conditions Minimum Typical Maximum Unit General Frequency range 2402 – 2480 Basic rate (GFSK) TX power at Bluetooth – 11.0 – QPSK TX Power at Bluetooth – – 8PSK TX Power at Bluetooth –...
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PRELIMINARY CYW43340 Table 27. Local Oscillator Performance Parameter Minimum Typical Maximum Unit LO Performance s Lock time – – Initial carrier frequency tolerance – ±25 ±75 Frequency Drift DH1 packet – ±8 ±25 DH3 packet – ±8 ±40 DH5 packet –...
15.1 Introduction The CYW43340 includes an integrated dual-band direct conversion radio that supports either the 2.4 GHz band or the 5 GHz band. The CYW43340 does not provide simultaneous 2.4 GHz and 5 GHz operation. This section describes the RF characteristics of the 2.4 GHz and 5 GHz portions of the radio.
PRELIMINARY CYW43340 15.2 2.4 GHz Band General RF Specifications Table 29. 2.4 GHz Band General RF Specifications Item Condition Minimum Typical Maximum Unit TX/RX switch time Including TX ramp down – – µs RX/TX switch time Including TX ramp up –...
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PRELIMINARY CYW43340 Table 30. WLAN 2.4 GHz Receiver Performance Specifications (Cont.) Parameter Condition/Notes Minimum Typical Maximum Unit RX sensitivity 40 MHz channel spacing for all MCS rates (GF) (10% PER for 4096 octet MCS 0 – –89 – a,b. PSDU)
PRELIMINARY CYW43340 15.4 WLAN 2.4 GHz Transmitter Performance Specifications Note: The specifications in Table 31 are measured at the chip port output, unless otherwise specified. Table 31. WLAN 2.4 GHz Transmitter Performance Specifications Parameter Condition/Notes Minimum Typical Maximum Unit Frequency range –...
PRELIMINARY CYW43340 15.5 WLAN 5 GHz Receiver Performance Specifications Note: The specifications in Table 32 are measured at the chip port input, unless otherwise specified. Table 32. WLAN 5 GHz Receiver Performance Specifications Parameter Condition/Notes Minimum Typical Maximum Unit Frequency range –...
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PRELIMINARY CYW43340 Table 32. WLAN 5 GHz Receiver Performance Specifications (Cont.) Parameter Condition/Notes Minimum Typical Maximum Unit RX sensitivity 40 MHz channel spacing for all MCS rates (Mixed mode) (10% PER for 4096 octet MCS 0 – –87.5 – PSDU)
PRELIMINARY CYW43340 16. Internal Regulator Electrical Specifications Note: Values in this data sheet are design goals and are subject to change based on the results of device characterization. Functional operation is not guaranteed outside of the specification limits provided in this section.
PRELIMINARY CYW43340 16.3 2.5V LDO (LDO2P5) Table 37. LDO2P5 Specifications Specification Notes Min. Typ. Max. Unit Input supply voltage Min= 2.52+0.15=2.67V Dropout voltage requirement must be met under the maximum load for performance specifications. Output current – – – Output voltage, Vo default = 2.52V...
PRELIMINARY CYW43340 16.6 LNLDO Table 40. LNLDO Specifications Specification Notes Units Input supply voltage, Vin Min = 1.2V + 0.1V = 1.3V. 1.35 Dropout voltage requirement must be met under maximum load. Output current – – Output voltage, V Programmable in 25 mV steps.
PRELIMINARY CYW43340 17. System Power Consumption Note: Values in this data sheet are design goals and are subject to change based on the results of device characterization. Unless otherwise stated, these values apply for the conditions specified in Table 24: “Recommended Operating Conditions and DC ■...
PRELIMINARY CYW43340 17.2 Bluetooth and BLE Current Consumption The Bluetooth current consumption measurements are shown in Table The WLAN core is in reset (WL_REG_ON = low) for all measurements provided in Table ■ The BT current consumption numbers are measured based on GFSK TX output power = 8 dBm.
PRELIMINARY CYW43340 18.2 HSIC Interface Specifications Table 45. HSIC Timing Parameters Parameter Symbol Minimum Typical Maximum Unit Comments HSIC signaling voltage – I/O voltage input low –0.3 – 0.35 × V – I/O Voltage input high 0.65 × V –...
(one for WL_REG_ON and one for BT_REG_ON), then only one of the two signals needs to be high to enable the CYW43340 regulators. The CYW43340 has an internal power-on reset (POR) circuit. The device will be held in reset for a maximum of 110 ms after VDDC ■...
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PRELIMINARY CYW43340 Figure 34. WLAN = OFF, Bluetooth = OFF 32.678 kHz Sleep Clock VBAT* VDDIO WL_REG_ON BT_REG_ON *Notes: 1. VBAT should not rise faster than 40 microseconds or slower than 100 milliseconds. 2. VBAT should be up before or at the same time as VDDIO . VDDIO should NOT be present first or be held high before VBAT is high. Figure 35. WLAN = ON, Bluetooth = OFF 32.678 kH z Sleep Clock VBA T 90% of VH VDDIO ~ 2 Sleep cycles W L_REG _O N...
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PRELIMINARY CYW43340 Figure 36. WLAN = OFF, Bluetooth = ON 32 .678 kH z Sleep C lock V B A T 90 % of V H V D D IO ~ 2 Sleep cycles W L_R EG _O N B T_ R EG _ O N *N otes: 1. V B A T should no t rise faster than ...
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Section 26: “Ordering Information,” on page 194. 03/04/0214 43340–DS106-R: Figure 38: “141-Bump CYW43340 WLBGA Ball Map (Bottom View),” on page 58 and Table 18: “WLBGA Signal Descriptions,” on page 59: Updated signal names for No Connect, VDDC, VDDIO, VSS, VSSC, and WRF_PA5G_VBAT_GND3P3 pins.
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PRELIMINARY CYW43340 Document Title: CYW43340, Single-Chip, Dual-Band (2.4 GHz/5 GHz) IEEE 802.11 a/b/g/n MAC/Baseband/Radio with Inte- grated Bluetooth 5.0 Document Number: 002-14943 Submission Revision Description of Change Date 09/10/2015 43340–DS110-R: Updated: Table 32: “WLAN 2.4 GHz Receiver Performance Specifications,” on page 85...
“Critical Component” means any component of a High-Risk Device whose failure to perform can be reasonably expected to cause, directly or indirectly, the failure of the High-Risk Device, or to affect its safety or effectiveness. Cypress is not liable, in whole or in part, and you shall and hereby do release Cypress from any claim, damage, or other liability arising from any use of a Cypress product as a Critical Component in a High-Risk Device.
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