LM49352, does it support PCM DATA FORMAT?

Kamal Najmi

Expert 3435 points

HI My customer would like to know if the LM49352 can support signed PCM data?

regards,

Kamal

over 9 years ago

0 Ivan Salazar over 9 years ago

TI__Guru** 110125 points

Hi Kamal,

Yes, LM49352 supports PCM audio interface. Detailed information is available at the device datasheet.

Best regards,
-Ivan Salazar
Texas Instruments

0 Kamal Najmi over 9 years ago in reply to Ivan Salazar

TI__Expert 3435 points

also signed PCM data?

0 Ivan Salazar over 9 years ago in reply to Kamal Najmi

TI__Guru** 110125 points

Kamal,

PCM usually comes in signed 2's complement format.

Best regards,
-Ivan Salazar
Texas Instruments

0 Kamal Najmi over 9 years ago in reply to Ivan Salazar

TI__Expert 3435 points

Thanks for the information, but other than that it does not, because there is also unsigned PCM, and we still don’t know whether the LM49352 can handle data with sign PCM or unsign PCM.
we have not found in details A configuration option, unfortunately, nowhere in the datasheet.

Can you please clarify whether the LM49352 can handle with sign-type data?

Best regards,
Kamal Najmi

0 Ivan Salazar over 9 years ago in reply to Kamal Najmi

TI__Guru** 110125 points

Kamal,

LM49352 handles signed PCM format.

Best regards,
-Ivan Salazar
Texas Instruments

0 Kamal Najmi over 9 years ago in reply to Ivan Salazar

TI__Expert 3435 points

hi,

Thank you for your comment, could you please specify where to find this information on the datasheet.
Regards,
Kamal

0 Ivan Salazar over 9 years ago in reply to Kamal Najmi

TI__Guru** 110125 points

Hi Kamal,

This is not stated in the datasheet. We will need to include this in future revisions for clarifying.
However, this is the way this protocol works on our devices with digital audio interface.

Best regards,
-Ivan Salazar
Texas Instruments

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LM49352, does it support PCM DATA FORMAT?