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ADC3664EVM: ADC3664EVM

Part Number: ADC3664EVM

ADC3664EVM的采样信号、DCLKIN和模拟输入信号都只是标注了dbm,请问对应的电压幅值是多少VPP?看到文档里说测试时使用的模拟信号是2.8VPP,请问是±1.4V的信号吗

  • 您好,

    采样时钟差分和共模幅值:

    DCLKIN差模和共模幅值:

    模拟输入差模和共模幅值:

    看到文档里说测试时使用的模拟信号是2.8VPP,请问是±1.4V的信号吗

    每个管脚输入的共模电压都是0.95V,上下摆动范围是0.8V,这样每个管脚的输入范围是0.15V ~1.75V;差分输入摆动范围就是±1.6Vpp;

    如果模拟输入是2.8Vpp,对应的差分输入就是±1.4Vpp,即在0.95V上下0.7V摆动,那么每个管脚上输入范围就是0.25V~1.65V。