Since I have a PCM1702 to PCM63 converter board pcb, I have put a PCM1704 on same adaptor board for testing purposes. The only difference is two supply pins +/-5V need to be reversed. Thus I do cut trace and add two hard wires at the bottom of the board to fit the supply reverse for PCM1704 DAC chips.
For Capacitor, I use Panasonic FC and also Wima MKS film capacitor for supply decouple as in the pictures.
For PCM1704, the noise floor is a bit lower as you can see from the FFT measurement.
