请教AR9220问题

l87522 · 发表于 2012-6-8 16:35:05

哪位大侠用过AR9220，XPA5BIAS_0、XPA5BIAS_1和SWCOM0～SWCOM3这几个引脚怎么用啊？

[此贴子已经被作者于2012-6-8 18:57:55编辑过]

l87522 · 发表于 2012-6-12 10:06:26

非常感谢，是不是可以这样理解XPA5BIAS_0、XPA5BIAS_1和PA5BIASN_1、PA5BIASP_1功能一样的？

wangzhentao · 发表于 2012-6-11 19:41:18

XPAS5BIAS_0 & XPA5BIAS_1 should be connected 5G PA`s those pins
such as :
VB1：Bias control voltage for the first stage.
VB2：Bias control voltage for the second stage
VB3：Bias control voltage for the third stage
SWCOM0～SWCOM4 should be connected 5G switch`s pins
such as Vcont1,Vcont2
;you can Use SWCOM pins to replace XPA5BIAS pins
I just think so

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[WiFi资料] 请教AR9220问题