PCM3168A: Schematic review needed for PCM3168A

Muhammad Awais

Part Number: PCM3168A

Hello TI,

We have completed the schematic for PCM3168A in our system based on the discussion (link given below) in another thread. We are configuring PCM3168A in hardware mode.

e2e.ti.com/.../DSP_5F00_PCM3168A_5F00_Schematic.pdf:1230:0]

We need the schematic review for this.

Please have a look on attached schematics.

Kind regards,

Muhammad Awais

over 7 years ago

0 Diego Melendez over 7 years ago

TI__Guru 57800 points

Hi, Muhammad,

It seems the attachment link is broken, can you please upload it again?.

Best Regards,

-Diego Meléndez López
Audio Applications Engineer

0 Muhammad Awais over 7 years ago in reply to Diego Melendez

Intellectual 640 points

I am trying to send it again. Any other way to upload the PDF in case it will fail again?

DSP_PCM3168A_Schematic.pdf

Kind regards,

Muhammad Awais

0 Muhammad Awais over 7 years ago in reply to Muhammad Awais

Intellectual 640 points

Hello Diego,

Please let me know if you get a chance to review the schematics.

Thanks,

Muhammad Awais

0 Diego Melendez over 7 years ago in reply to Muhammad Awais

TI__Guru 57800 points

Hi, Muhammad,

In general the schematic seems fine, please refer to below comments:

The analog +5V power supplies for the codec can be connected from the same source, there is no need to distinguish between +5V2A-1 and +5VA-2.
ADC_LRCK is missing from McBSP1 interface

Best Regards,

-Diego Meléndez López
Audio Applications Engineer

0 Muhammad Awais over 7 years ago in reply to Diego Melendez

Intellectual 640 points

Thanks Diego for the confirmation. For ADC_LRCK please confirm if this is correct from the image given below;

Kind regards,

Muhammad Awais

0 Diego Melendez over 7 years ago in reply to Muhammad Awais

TI__Guru 57800 points

Hi, Muhammad,

The correction seems fine. I just noticed another thing, it seems you are not populating the corresponding resistor to transmitter and receiver for the LRCK clocks on the slave/master interfaces respectively, which seems fine. This approach should be taken as well for bit clock.

Best Regards,

-Diego Meléndez López
Audio Applications Engineer

0 Muhammad Awais over 7 years ago in reply to Diego Melendez

Intellectual 640 points

Hello Diego,

I have replaced R100 on Master McBSP0_CLKR and R159 on Slave McBSP1_CLKR with DNP. Still as we have both options so it could be used vise versa.

Thanks for your overall help.

Kind regards,

Muhammad Awais

Audio

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PCM3168A: Schematic review needed for PCM3168A