原标题：Cypress CYW4343W高度集成单片WLAN解决方案

　　Cypress公司的CYW4343W是高度集成的单片WLAN解决方案,包括2.4 GHz WLAN IEEE802.11 b/g/n MAC/基带/无线电,支持蓝牙4.1,集成了输出功率满足大多数手持设备要求的功率放大器(PA),具有最好接收器灵敏度的低噪音放大器(LNA)以及发送/接收(iTR)RF开关,从而进一步降低整个解决方案成本和PCB面积.主要用在可穿戴设备,物联网(IoT)网关,家庭自动化和其它手持设备.本文介绍了CYW4343W主要特性,支持WLAN和蓝牙的主要特性,框图和系统框图,以及其无线电功能框图,评估板CY8CKIT-062-WiFi-BT主要特性,Pioneer板和CY8CKIT-028-TFT板框图,电路图.

　　The Cypress CYW4343W is a highly integrated single-chip solution and offers the lowest RBOM in the industry for wearables, Internetof Things (IoT) gateways, home automation, and a wide range of other portable devices. The chip includes a 2.4 GHz WLAN IEEE 802.11 b/g/n MAC/baseband/radio and Bluetooth 4.1 support. In addition, it integrates a power amplifier (PA) that meets the outputpower requirements of most handheld systems, a low-noise amplifier (LNA) for best-in-class receiver sensitivity, and an internaltransmit/receive (iTR) RF switch, further reducing the overall solution cost and printed circuit board area.

　　The WLAN host interface supports SDIO v2.0 mode, providing a raw data transfer rate up to 200 Mbps when operating in 4-bit modeat a 50 MHz bus frequency. An independent, high-speed UART is provided for the Bluetooth host interface.Using advanced design techniques and process technology to reduce active and idle power, the CYW4343W is designed to address the needs of highly mobiledevices that require minimal power consumption and compact size. It includes a power management unit that simplifies the systempower topology and allows for operation directly from a rechargeable mobile platform battery while maximizing battery life.

　　The CYW4343W implements the world’s most advanced Enhanced Collaborative Coexistence algorithms and hardware mechanisms,allowing for an extremely collaborative WLAN and Bluetooth coexistence.

　　The Cypress CYW4343W provides the highest level of integration for a mobile or handheld wireless system, with integrated IEEE 802.11 b/g/n. It provides a small form-factorsolution with minimal external components to drive down cost for mass volumes and allows for handheld device flexibility in size, form, and function. The CYW4343W isdesigned to address the needs of highly mobile devices that require minimal power consumption and reliable operation.

　　CYW4343W主要特性:

　　IEEE 802.11x Key Features

　　■ Single-band 2.4 GHz IEEE 802.11b/g/n.

　　■ Support for 2.4 GHz Cypress TurboQAM® data rates (256-QAM) and 20 MHz channel bandwidth.

　　■ Integrated iTR switch supports a single 2.4 GHz antennashared between WLAN and Bluetooth.

　　■ Supports explicit IEEE 802.11n transmit beamforming

　　■ Tx and Rx Low-density Parity Check (LDPC) support forimproved range and power efficiency.

　　■ Supports standard SDIO v2.0 host interface.

　　■ Supports Space-Time Block Coding (STBC) in the receiver.

　　■ Integrated ARM Cortex-M3 processor and on-chip memory forcomplete WLAN subsystem functionality, minimizing the needto wake up the applications processor for standard WLANfunctions. This allows for further minimization of powerconsumption, while maintaining the ability to field-upgrade withfuture features. On-chip memory includes 512 KB SRAM and640 KB ROM.

　　■ OneDriver™ software architecture for easy migration fromexisting embedded WLAN and Bluetooth devices as well as tofuture devices.

　　Bluetooth Features

　　■ Complies with Bluetooth Core Specification Version 4.1 withprovisions for supporting future specifications.

　　■ Bluetooth Class 1 or Class 2 transmitter operation.

　　■ Supports extended Synchronous Connections (eSCO), forenhanced voice quality by allowing for retransmission ofdropped packets.

　　■ Adaptive Frequency Hopping (AFH) for reducing radiofrequency interference.

　　■ Interface support — Host Controller Interface (HCI) using ahigh-speed UART interface and PCM for audio data.

　　■ Low-power consumption improves battery life of handhelddevices.

　　■ Supports multiple simultaneous Advanced Audio DistributionProfiles (A2DP) for stereo sound.

　　■ Automatic frequency detection for standard crystal and TCXOvalues.

　　General Features

　　■ Supports a battery voltage range from 3.0V to 4.8V with aninternal switching regulator.

　　■ Programmable dynamic power management.

　　■ 4 Kbit One-Time Programmable (OTP) memory for storingboard parameters.

　　■ Can be routed on low-cost 1 x 1 PCB stack-ups.

　　■ 74-ball[4343W+43CS4343W1]74-ball 63-ball WLBGApackage (4.87 mm × 2.87 mm, 0.4 mm pitch).

　　■ 153-bump WLCSP package (115 μm bump diameter, 180 μmbump pitch).

　　■ Security:

　　❐WPA and WPA2 (Personal) support for powerful encryptionand authentication.

　　❐AES in WLAN hardware for faster data encryption and IEEE802.11i compatibility.

　　❐Reference WLAN subsystem provides Cisco Compatible Extensions(CCX, CCX 2.0, CCX 3.0, CCX 4.0, CCX 5.0).

　　❐Reference WLAN subsystem provides Wi–Fi Protected Setup(WPS).

　　■ Worldwide regulatory support: Global products supported withworldwide homologated design.

　　CYW4343W支持WLAN和蓝牙的主要特性:

　　■ IEEE 802.11b/g/n single-band radio with an internal power amplifier, LNA, and T/R switch

　　■ Bluetooth v4.1 with integrated Class 1 PA

　　■ Concurrent Bluetooth, and WLAN operation

　　■ On-chip WLAN driver execution capable of supporting IEEE 802.11 functionality

　　■ Simultaneous BT/WLAN reception with a single antenna

　　■ WLAN host interface options:

　　❐SDIO v2.0, including default and high-speed timing.

　　■ BT UART (up to 4 Mbps) host digital interface that can be used concurrently with the above WLAN host interfaces.

　　■ ECI—enhanced coexistence support, which coordinates BT SCO transmissions around WLAN receptions.

　　■ I2S/PCM for BT audio

　　■ HCI high-speed UART (H4 and H5) transport support

　　■ Wideband speech support (16 bits, 16 kHz sampling PCM, through I2S and PCM interfaces)

　　■ Bluetooth SmartAudio® technology improves voice and music quality to headsets.

　　■ Bluetooth low power inquiry and page scan

　　■ Bluetooth Low Energy (BLE) support

　　■ Bluetooth Packet Loss Concealment (PLC)

　　CYW4343W兼容的标准:

　　仭 Bluetooth 2.1 + EDR

　　仭 Bluetooth 3.0

　　仭 Bluetooth 4.1 (Bluetooth Low Energy)

　　仭 IEEE 802.11n.Handheld Device Class (Section 11)

　　仭 IEEE 802.11b

　　仭 IEEE 802.11g

　　仭 IEEE 802.11d

　　仭 IEEE 802.11h

　　仭 IEEE 802.11i

　　CYW4343W支持未来的草案/标准:

　　仭 IEEE 802.11r . Fast Roaming (between APs)

　　仭 IEEE 802.11k . Resource Management

　　仭 IEEE 802.11w . Secure Management Frames

　　仭 IEEE 802.11 Extensions:

　　仭 IEEE 802.11e QoS Enhancements (as per the WMMR specification is already supported)

　　仭 IEEE 802.11i MAC Enhancements

　　仭 IEEE 802.11r Fast Roaming Support

　　仭 IEEE 802.11k Radio Resource Measurement

　　CYW4343W支持安全特性和有所有全的协议:

　　仭 Security:

　　. WEP

　　. WPA. Personal

　　. WPA2. Personal

　　. WMM

　　. WMM-PS (U-APSD)

　　. WMM-SA

　　. WAPI

　　. AES (Hardware Accelerator)

　　. TKIP (host-computed)

　　. CKIP (SW Support)

　　仭Proprietary Protocols:

　　. CCXv2

　　. CCXv3

　　. CCXv4

　　. CCXv5

　　IEEE 802.15.2 Coexistence Compliance .on silicon solution compliant with IEEE 3-wire requirements.

　　评估板CY8CKIT-062-WiFi-BT

　　The PSoC® 6 WiFi-BT Pioneer Kit (CY8CKIT-062-WiFi-BT) is a low-cost hardware platform that enables design and debug of the PSoC 62 MCU and the Murata LBEE5KL1DX Module (CYW4343W WiFi + Bluetooth Combo Chip).

　　Thank you for your interest in the CY8CKIT-062-WiFi-BT PSoC 6 WiFi-BT Pioneer Kit. The PSoC 6WiFi-BT Pioneer Kit enables you to evaluate and develop your applications using the PSoC 6 MCU.

　　The PSoC 6 MCU is Cypress’latest, ultra-low-power PSoC specifically designed for wearables andIoT products. It is a programmable embedded system-on-chip, integrating a 150-MHz Arm®Cortex®-M4 as the primary application processor, a 100-MHz CM0+ that supports low-poweroperations, up to 1 MB Flash and 288 KB SRAM, CapSense® touch-sensing, and programmableanalog and digital peripherals that allow higher flexibility, in-field tuning of the design, and fastertime-to-market.

　　The PSoC 6 WiFi-BT Pioneer board offers compatibility with Arduino™ shields. The board features aPSoC 6 MCU, a 512-Mb NOR flash, an onboard programmer/debugger (KitProg2), a 2.4-GHzWLAN and Bluetooth functionality module (CYW4343W), a USB Type-C power delivery system (EZPD™ CCG3), a five-segment CapSense slider, two CapSense buttons, one CapSense proximitysensing header, an RGB LED, two user LEDs, USB host and device features, and one push button.

　　The board supports operating voltages from 1.8 V to 3.3 V for the PSoC 6 MCU.

　　The CY8CKIT-062-WiFi-BT package includes a CY8CKIT-028-TFT Display Shield that contains a2.4-inch TFT display, a motion sensor, ambient light sensor, a 32-bit audio codec, and a PDMmicrophone.

　　This is the first kit that enables development of PSoC 6 MCU + WiFi applications. To develop aPSoC 6 MCU + WiFi application, WICED™ Studio 6.1 or later must be used. WICED Studio isCypress’integrated development environment (IDE) for developing WiFi applications. If you are notadding WiFi to your design then you can develop and debug PSoC 6 MCU project using PSoCCreator™. PSoC Creator supports exporting your designs to other third-party firmware developmenttools.

　　The CY8CKIT-062-WiFi-BT package has the following contents:

　　■ PSoC 6 WiFi-BT Pioneer Board

　　■ CY8CKIT-028-TFT Display Shield

　　■ USB Type-A to Type-C cable

　　■ Four jumper wires (4 inches each)

　　■ Two proximity sensor wires (5 inches each)

　　■ Quick Start Guide

　　图6.评估板CY8CKIT-062-WiFi-BT外形图

　　图7.评估板CY8CKIT-062-WiFi-BTPioneer板外形图

　　Pioneer板中数字对应的元件如下:

　　CY8CKIT-028-TFT 板主要特性:

　　■ A 2.4-inch Thin-Film Transistor (TFT) LCD module with 240x320 pixel resolution.

　　■ A three-axis acceleration and three-axis gyroscopic motion sensor.

　　■ A PDM microphone for voice input.

　　■ A 32-bit stereo codec with microphone, headphone, and speaker amplifier capability.

　　■ An audio jack with a provision of connecting both AHJ and OMTP headphones. The headsetstandard can be set by an onboard switch.

　　■ An ambient light sensor IC made of an NPN phototransistor.

　　■ An LDO that converts 3.3 V to 1.8 V for the digital supply of the audio codec

　　图8.CY8CKIT-028-TFT 板外形图