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PCM2903C: 关于PCM2903C的阻抗匹配问题

Part Number: PCM2903C

在数据手册中,没有找到关于这个模拟输入和模拟输出的阻抗描述,

所以想问一下,这部分的特征阻抗是多少?

看EVM的话,感觉这两对线的线宽和其它的走线差不多?