PCM5101A: DC Output Capability

Sadanori Kato

Guru 36530 points

Part Number: PCM5101A

Hi,

Is my understanding correct that PCM5101A has a DC output capability(in other words, without the high pass filter) ?

Best regards,
Kato

over 7 years ago

0 Paul_Frost over 7 years ago

TI__Guru 53503 points

Hello Kato-san,

I am not sure if I understand your question. We do specify DC performance (gain error, offset error) but we do not have linearity specifications for this device. What is the high-pass filter your are referring to?

0 Sadanori Kato over 7 years ago in reply to Paul_Frost

Guru 36530 points

Hi Paul-san,

Thank you for your reply.
I would like to confirm whether the DC voltage depending on the input data is output if inputting the fixed data to PCM5101A via the I2S interface.
Could you please give me your advice ?

Best regards,
Kato

0 Paul_Frost over 7 years ago in reply to Sadanori Kato

TI__Guru 53503 points

Yes, if you continuously write the same value over I2S the output should stay static, though a low pass filter is still recommended on the output to remove higher frequency noise.

0 Sadanori Kato over 7 years ago in reply to Paul_Frost

Guru 36530 points

Hi Paul-san,

Thank you for your quick response.
I understood.

Best regards,
Kato

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PCM5101A: DC Output Capability