原标题：Cypress CYW20706单片蓝牙(BT)双模式SoC解决方案

　　Cypress公司的CYW20706是单片蓝牙(BT)双模式系统级芯片(SoC),集成了基带处理器,ARM® Cortex™-M3处理器和集成的收发器.它是运行于嵌入BT堆栈,支持采用WICED Studio开发的嵌入式用户应用.CYW20706采用最先进的40 nm CMOS低功耗工艺,具有最高的集成度,从而消除所有关键外接元件,使得实现蓝牙解决方案具有最小化器件占位面积和最低成本.器件和蓝牙核指标V.4.2包括BR/EDR/BLE兼容,Broadcom专有的LE数据速率高达2Mbps,主要用在家庭自动化,POS输入设备,血压监视器,“Find me”设备,心率监视仪,温度计,可穿戴设备和接近传感器.本文介绍了CYW20706主要特性,功能框图,以及评估板CYW920706WCDEVAL主要特性,框图和布局和元件位置图,电路图,材料清单和PCB设计图.

　　CYW20706 is a monolithic, single chip, Bluetooth (BT) dual-mode System-on-a-Chip (SoC) that includes a baseband processor, an ARM® Cortex™-M3 processor and an integrated transceiver. It is a fully embedded device running an embedded BT stack with support for embedded user applications developed with WICED Studio.

　　The Cypress CYW20706 is a single-chip Bluetooth 4.2-compliant, stand-alone baseband processor with an integrated 2.4 GHztransceiver. Manufactured using the industry’s most advanced 40 nm CMOS low-power process, the CYW20706 employs the highestlevel of integration to eliminate all critical external components, thereby minimizing the device ’s footprint and the costs associated withimplementing Bluetooth solutions.

　　The CYW20706 is the optimal solution for embedded and IoT applications. Built-in firmware adheres to the Bluetooth Low Energy(BLE) profile.

　　The Bluetooth Baseband Core (BBC) implements all of the time-critical functions required for high-performance Bluetooth operation.

　　The BBC manages the buffering, segmentation, and routing of data for all connections. It also buffers data that passes through it,handles data flow control, schedules SCO/ACL and TX/RX transactions, monitors Bluetooth slot usage, optimally segments andpackages data into baseband packets, manages connection status indicators, and composes and decodes HCI packets. In additionto these functions, it independently handles HCI event types, and HCI command types. The following transmit and receive functionsare also implemented in the BBC hardware to increase reliability and security of the TX/RX data before sending over the air:

　　■ Symbol timing recovery, data deframing, forward error correction (FEC), header error control (HEC), cyclic redundancy check(CRC), data decryption, and data dewhitening in the receiver.

　　■ Data framing, FEC generation, HEC generation, CRC generation, key generation, data encryption, and data whitening in thetransmitter.

　　CYW20706主要特性:

　　■ Complies with Bluetooth Core Specification version 4.2including BR/EDR/BLE

　　■ Broadcom proprietary LE data rate up to 2 Mbps

　　■ BLE HID profile version 1.00 compliant

　　■ Bluetooth Device ID profile version 1.3 compliant

　　■ Supports Generic Access Profile (GAP)

　　■ Supports Adaptive Frequency Hopping (AFH)

　　■ Excellent receiver sensitivity

　　■ Programmable output power control

　　■ Integrated ARM Cortex-M3 microprocessor core

　　■ On-chip power-on reset (POR)

　　■ Support for EEPROM and serial flash interfaces

　　■ Integrated low dropout regulators (LDO)

　　■ On-chip software controlled PMU

　　■ PCM/I2S Interface

　　■ Infrared modulator

　　■ On-chip support for SPI (master/slave modes)

　　■ I2C interface (compatible with NXP I2C slaves)

　　■ Package types:

　　❐ 49-pin FBGA package (4.5 mm x 4.0 mm) Bluetooth 4.2-compliant

　　❐ RoHS compliant

　　CYW20706应用:

　　■ Home automation

　　■ Point-of-sale input devices

　　■ Blood pressure monitors

　　■ “Find me” devices

　　■ Heart rate monitors

　　■ Proximity sensors

　　■ Thermometers

　　■ Wearables

　　图1.CYW20706功能框图

　　评估板CYW920706WCDEVAL

　　The Cypress CYW920706WCDEVAL Evaluation Kit enables you to evaluate and develop single-chip Bluetooth applications using the CYW20706 device. The Cypress CYW20706 is a single-chip Bluetooth 4.2-compliant, stand-alone baseband processor with an integrated 2.4 GHz transceiver. This kit helps evaluate device functionality and develop applications quickly for faster time-to-market.

　　评估板CYW920706WCDEVAL主要特性:

　　CYW20706 Bluetooth 4.2-compliant SoC

　　Arduino compatible headers for hardware expansion

　　User switches and LEDs

　　USB connector for power, programming and USB-UART bridge

　　评估板CYW920706WCDEVAL包括:

　　CYW920706WCDEVAL Evaluation board

　　USB Standard-A to Micro-B cable

　　Quick Start Guide

　　图2.评估板CYW920706WCDEVAL外形图

　　图.评估板CYW920706WCDEVAL框图