Atmel可穿戴高端智能胸牌SoC解决方案

Atmel可穿戴高端智能胸牌SoC解决方案包括了传感器集线器,触摸功能和无线连接,采用SMART SAMA5D31作为处理器,SMART SAM G54作为传感器集线器,maxTouch MXT112作为触摸控制器和SmartConnect WILC3000作为Wi-Fi/蓝牙组合连接.本文介绍了ATWILC3000主要特性,框图和应用电路,SAMA5D3主要特性和框图,以及高端可穿戴智能胸牌SoC解决方案框图和主要元器件.
一.ATWILC3000

The Atmel® ATWILC3000 is a single chip IEEE® 802.11 b/g/n RF/Baseband/MAC link controller and Bluetooth® 4.0 optimized for low-power mobile applications. The ATWILC3000 supports single stream 1x1 802.11n mode providing up to 72Mbps PHY rate. The ATWILC3000 features fully integrated Power Amplifier, LNA, Switch and Power Management. Implemented in 65nm CMOS technology, the ATWILC3000 offers very low power consumption while simultaneously providing high performance and minimal bill of materials.
The ATWILC3000 utilizes highly optimized 802.11-Bluetooth coexistence protocols. The ATWILC3000 provides multiple peripheral interfaces including UART, SPI, I2C, and SDIO. The only external clock sources needed for the ATWILC3000 is a high-speed crystal or oscillator with a wide range of reference clock frequencies supported (14-40MHz) and a 32.768kHz clock for sleep operation. The ATWILC3000 is available in both QFN and Wafer Level Chip Scale Package (WLCSP) packaging.
ATWILC3000主要特性:

 IEEE 802.11 b/g/n 20MHz (1x1) solution
 Single spatial stream in 2.4GHz ISM band
 Integrated PA and T/R Switch
 Superior Sensitivity and Range via advanced PHY signal processing
 Advanced Equalization and Channel Estimation
 Advanced Carrier and Timing Synchronization
 Wi-Fi Direct and Soft-AP support
 Supports IEEE 802.11 WEP, WPA, and WPA2 Security
 Supports China WAPI security
 Superior MAC throughput via hardware accelerated two-level A-MSDU/A-MPDU frame aggregation and ...