Compiler/PCM4220: how to drive pcm4220 by using FPGA

Hello,

We do not have specific example code available to generate the proper audio serial interface (ASI) signals.  However, you'll likely find example code available and then you just need to format it properly for the PCM4220 as described in the datasheet audio serial interface section.

The PCM4220, like most Audio ADCs, does not include an internal oscillator and requires that you provide an external MCLK signal Please review the "Master Clock Input" section of the datasheet on page 18 for guidance on how to connect the MCKI input of the PCM4220.  

You'll also need to configure the FMT, FS, and SUB HW pins based on how you want to configure the audio serial interface.  There's a lot of good information about this in the sections after the Master Clock Input section referenced above.

https://www.ti.com/lit/ds/symlink/pcm4220.pdf