PCM2903C application question

GaryC

Other Parts Discussed in Thread: PCM2903C, PCM2912A

Since the PCM2903C includes the ADC and DAC, so it should be support analog in to analog out at the same time. Does the PCM2903C support the mic-in to line out at the same time?

Gary Chen

over 9 years ago

0 Pavel Ruzicka over 9 years ago

Expert 1720 points

Hi Gary, PCM2903C support simultaneous Analog In and Analog Out. It doesn't have mic-in. Analog Out and Analog In both have "Line" voltage levels. It is described in datasheet. Vpp for Out and In is 0.6 * VCCC which is about 1.98V.

Pavel

0 Ivan Salazar over 9 years ago

TI__Guru** 109645 points

Hi Gary,

If you need Mic-in you can take a look at PCM2912A. This device has also a Side-Tone path with a PGA that could be useful for your application.

Best regards,
-Ivan Salazar
Texas Instruments

0 GaryC over 9 years ago in reply to Ivan Salazar

TI__Expert 3305 points

Does the PCM2912A whether support android driver? Or has other USB audio code solution can support android driver? Appreciated your recommends. Thaks.

Gary

0 Ivan Salazar over 9 years ago in reply to GaryC

TI__Guru** 109645 points

Hi Gary,

PCM2912A and PCM290xC are standard USB Audio Class.
The driver for these devices is in the OS itself.

Best regards,
-Ivan Salazar
Texas Instruments

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PCM2903C application question