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開發板

Atheros AR2317,一款早期的WLAN SoC

發布日期:2022-10-14 點擊率:49

Atheros AR2317是Atheros早期推出的一款WLAN SoC,相信現在的開發者應該連聽都沒聽過,除非是一直從事 WiFi行業的工程師。Atheros AR2317對我來說有著非常獨特的意義——這是我承接的第一個定制開發項目。還記得當年客戶要求一款非常小尺寸的無線AP,嵌入到客戶的設備中,用于無線數據傳輸。Atheros AR2317的集成度很高,簡單來說就是,除了Ethernet PHY,什么都有了。

Atheros-AR2317

Atheros AR2317采用CMOS工藝,是一款高度集成的單芯片802.11 b/g WLAN解決方案,其內部集成了PA,LNA,MAC/BB/Radio及一顆MIPS 4000內核處理器,可以用于無線AP,無線路由器等產品。同時,AR2317還具有Ethernet MAC,MII接口,SDRAM接口,UART接口等。

AR2317內部功能框圖

AR2317-Block-Diagram

AR2317主要特征

  • 內置射頻功率放大器
  • 內置低噪聲放大器
  • 集成1.8V LDO
  • 支持分集接收
  • 集成TR Switch
  • 集成功率檢測器
  • 集成MIPS 4000處理器,最高主頻180MHz
  • 最高無線數據帶寬54Mbps
  • 具有MII接口

當年的AR2317

現在看看,覺得設計真心糟糕(還是PS過的),還好尺寸小是一個很大的優勢,各項性能指標也達到了客戶的認可。

AR2317-PCBA

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