PCM1822: Full scale AC signal voltage

Yasushi Fujiwara

Part Number: PCM1822

Hello Experts,

The full scale AC signal voltage is stated 1Vrms(typ) in datasheet. The condition is AVDD is 3.3V. If AVDD is 3.1V, it will be reduced? Also if AVDD is 3.1V, the other spec(SNR, DR and so on) will be reduced?

Best Regards,
Fujiwara

over 1 year ago

0 Ore Ogundana over 1 year ago

TI__Expert 6595 points

Hello Fujiwara,

Thanks for bringing this to my attention. Allow me till the end of the week to investigate this and get back to you.

BR,

Ore.

0 Yasushi Fujiwara over 1 year ago in reply to Ore Ogundana

TI__Genius 12715 points

Hello Ore,

Would you answer the question by 3/30 US time(3/31 Japan time), please? Customer would like to get the answer by 3/31 Japan time.

Best Regards,
Fujiwara

0 Ore Ogundana over 1 year ago in reply to Yasushi Fujiwara

TI__Expert 6595 points

Hello fujiwara,

Thanks for informing me about the deadline. I would work around this issue asap.

Ore.

0 Ore Ogundana over 1 year ago

TI__Expert 6595 points

Hello Fujiwara,

The datasheet guarantees all the specs (SNR,DR and so on) at the provided conditions. And between the recommended operating conditions of the PCM1822, the chip should still be able to meet those specs as well.

Hope this clarifies your question,

Ore.

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PCM1822: Full scale AC signal voltage