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ADC的仿真问题

Other Parts Discussed in Thread: PCM3500

做语音系统 需要将从麦克接受到的信号放大之后 经过ADC数模转换 再通过音频压缩芯片压缩 

  现在问题是 选了 ADC芯片为PCM3500和音频压缩芯片 打算用 proteus来仿真 用单片机做时序控制 

   找不到PCM3500的spice模型。。