PCM5121; When in VREF mode, the problem in the case of the decoupling capacitor is connected to GND.

Hiroaki Masumoto

Expert 1210 points

Other Parts Discussed in Thread: PCM5121

Hi,

My customer intend to use the PCM5121 DAC in VREF mode, I2C mode, audio signal will be fed in using I2S.

When in VREF mode, VCOM-pin(10-pin) is connected to a decoupling capacitor to AGND.

If this still is mass production, do you think what problems happen?

Best regards,
Hiroaki Masumoto

0 Justin Bohr over 7 years ago

Hi Hirotaka,

I apologize for the delay, I have been on business travel.

There should be no issue with having the capacitor on the VCOM pin.

Justin

0 Hiroaki Masumoto over 7 years ago in reply to Justin Bohr

Expert 1210 points

Hi Justin-san

Thank you for your help.
I understand the contents of the reply.
I will inform this information to customers.

Regards,
Hiroaki Masumoto

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