PCM2912A: Need an application circuit

Hi, Mubdiul,

The PCM2912A should not have issues connecting with the hub controller you selected. One thing to consider is that this audio USB codec is compatible with USB 2.0 spec. About the application circuit for the PCM2912A, we generally recommend to follow our EVM circuit as close as possible. You can find the schematic of our EVM in the DEM-PCM2912A EVM User's Guide.

Best Regards,

  -Diego Meléndez López
   Audio Applications Engineer

Dear Sir Diego,

Thank you for your response.

1.Can you tell me this EVM board can support MEMS microphone ?

2. Does the firmware of   PCM2912A  could support MEMS ?

Regards

Hasan

Hi, Hasan,

The PCM2912A should be able to support analog MEMS microphones without issues. From the firmware perspective, the PCM2912A will only see an analog input, the mic signal conditioning (pre-amplifying stage) is set via hardware. 

Best Regards,

  -Diego Meléndez López
   Audio Applications Engineer

Dear Sir Diego,

Dont you talking about   DEM-PCM2912A EVM circuit ? If you have any application circuit, kindly share with me.

Regards

Hasan

Hi, Hasan,

Yes, I was referring to the schematics of the EVM circuit. A more basic application circuit can be found in section 10.2 of the datasheet:

Best Regards,

  -Diego Meléndez López
   Audio Applications Engineer

Dear Sir,

Thank you once again. Could you kindly explain its firmware technology?
Is it communicate through USB ? Dongle type ?How the program can be burned on PCM2912?

Dear Sir,

I want to  remove Headphone part from the application circuit, datasheet of PCM2912 says, need to activate pin 26 Vccp that is analog power supply for PLL.

Take a look the schematic and suggested me what to do for modification.