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PCM4104: Use at 2ch mode

Part Number: PCM4104


Hello,

Our customer plans to use PCM4104 as 2ch DAC, like 1ch and 2ch only.

In this case how can we connect rest of 3ch and 4ch reference pins, Vref3+, Vref3-, Vref4+, Vref4-?

One of idea is leave those pins OPEN. But we worry DAC segment is still operating before DAC output stage then this connection may create some strange leakage current DAC internally .

The other idea is that keep connection it to Vcc and GND, but it will consume current at absence 2ch DAC blocks.

What is your recommendation?

Regards,

Mochizuki