PCM1754: 1.8V logic control

Kai Hsiao

Guru 12675 points

Part Number: PCM1754
Other Parts Discussed in Thread: PCM5100A, , PCM5101A

Hi Sir

I saw PCM1754DBQR is used for 3.3V logic level

May I know TI have similar solution for 1.8V logic level

over 5 years ago

0 Paul_Frost over 5 years ago

TI__Guru 53503 points

Hi Kai,

The PCM1754 only supports 3.3V logic. A comparable device that can utilize 1.8V logic is the PCM5100A.

Thanks,

Paul

0 Kai Hsiao over 5 years ago in reply to Paul_Frost

Guru 12675 points

Hi Sir

May I use PCM5101A to replace PCM1754+OPA16xx ?

Thanks

0 Paul_Frost over 5 years ago in reply to Kai Hsiao

TI__Guru 53503 points

Hi Kai,

That depends on what you are using the amplifier for. The PCM5101A has better output load capability than the PCM1754, so it can drive as low as 1kΩ. It also has better out of band noise performance, and so it does not need a 2nd order active filter.

Thanks,

Paul

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PCM1754: 1.8V logic control