Hi team,
My customer has been designing PCM3060 on their original board. Do we have the recommended external mute circuits?
Best regards,
Shunsuke Yamamoto
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Hi team,
My customer has been designing PCM3060 on their original board. Do we have the recommended external mute circuits?
Best regards,
Shunsuke Yamamoto
Can you let me know the functionality needed from the external mute circuit?
Hi Sanjay,
Thank you for the reply. On the datasheet of PCM3060, the requirement of the external mute circuit is stated. Do you have the recommended external mute circuits?
Best regards,
Shunsuke Yamamoto
Hi Yamamoto-san
Sanjay is returning to the office tomorrow and will be able to address your question then.
Thank you for your patience,
Jeff McPherson
Hi Jeff,
Thank you for your reply. I am looking forward to Sanjay's back.
Best regards,
Shunsuke Yamamoto
The ZEROL and ZEROR control signals indicate when there is zero audio data. This can be directly used to indicate to a SOC or Microcontroller that there is no audio present. It could also be used as an example to control a relay to disconnect a loudpeaker from a power amplifier.
The specific circuit connected to the outputs therefore is determined by what is intended. We can suggest an interface circuit if we know what the customer likes to do with these outputs.
Hi Sanjay,
Thank you for your reply. My customer faces unwanted pop noise when enabling the reset although the external mute circcuit is implemented on the circuit. Do you see any causes of this pop noise and any ideas to remove it? I adviced him to use internal mute function(Soft-mute control), but he doesn't seem to change the software in PCM3060.
PCM3060_circuit.pdfPCM3060_IssueVer1.pptx
Best regards,
Shunsuke Yamamoto
Hi Yamamoto-san,
There seems to be an issue with the powerpoint. Can you reattach as pdf?
Also where is the pop noise being measured? There is a lot going on in this mute circuit and identifying where the pop is first being observed is important for debugging.
Thanks,
Jeff McPherson
Hi Yamamoto-san,
This behavior in Aout(L/R) and DOUT is expected and a function of how you configure ADPSV/DAPSV registers and your external RESET.
Explained on page 30 and 31 of d/s. This may help customer with issue.
Best regards,
Daveon Douglas