TAC5142: [TAC5142] About the data format of the digital audio interface (AIS).

user6448843

Prodigy 110 points

Part Number: TAC5142
Other Parts Discussed in Thread: TAC5211, TAC5111

Tool/software:

Is the data format of this device PCM? Or is it some other data format?

(Which data format does it support?)

Because it's not mentioned in the datasheet.

6 months ago

0 Lakshmi Narasimhan Badrinarayanan 6 months ago

TI__Intellectual 2940 points

Hi,

Yes, the TAC5142 supports 2's complement PCM audio data format.

0 user6448843 6 months ago in reply to Lakshmi Narasimhan Badrinarayanan

Prodigy 110 points

Thank you.

＞Yes, the TAC5142 supports 2's complement PCM audio data format

⇒ Does the datasheet state that the PCM format is supported?

　 (Where in the datasheet does it say that?)

0 Jeff McPherson 6 months ago in reply to user6448843

TI__Mastermind 34730 points

Hi,

PCM is not explicitly mentioned in the data sheet, but all the audio formats specified by the device are all PCM 2s complement in nature, according to the I2S standard.

Best regards,
Jeff McPherson

0 user6448843 6 months ago in reply to Jeff McPherson

Prodigy 110 points

Thank you. I understand.

If possible, please let me know.

The datasheets for TAC5111 and TAC5211 state that they are in PCM format.

Why does the description differ depending on the product, like TAC5142?

■From TAC5111 (data sheet)

+1 Jeff McPherson 6 months ago in reply to user6448843

TI__Mastermind 34730 points

Hi,

Please keep in mind that these data sheets are still in a preview status and are not final. The paragraph you are referencing makes mention of software register configurations. Since the TAC5142 is hardware controlled, the paragraph is not in the data sheet. However I assure you the PCM information is still true for the TAC5142.

Best regards,
Jeff McPherson

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

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TAC5142: [TAC5142] About the data format of the digital audio interface (AIS).