谢谢了!首先音频信号经过OPA1632和OPA134组成的ADC输入电路到pcm4220,只单独供一个13.824M的MCKI.经过PCM4220引脚编程决定后,输出的I2S数据直接送入FPGA进行数字处理。这样需要选择主从模式来进行工作吗?是否需要加其它的电路?
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谢谢您了!256fs/128fs64fs/这是属于时钟抖动标准吗?飞秒级别要求有点高哦,使用TI的什么时钟芯片比较好?如果使用有源晶振要多少ppm?