PCM2903C: About Line in and Line out

wenxing zheng

Part Number: PCM2903C
Other Parts Discussed in Thread: PCM2903

Hello,

Below is my application:

Case1: CPU plays audio, SPK L and R can output simultaneously。

Case2：MIC1 input(VIN L), just SPK L has output, SPK R doesn't work.

Case3：MIC2 input(VIN R), just SPK R has output, SPK L doesn't work.

Is it right?

We hope SPK L & R can work at the same time , regardless of which mic is inputing.

Thank you!

0 pdjuandi over 2 years ago

Hi,

As this is USB converter, the control is through USB interface.

You can refer this document for more information.

Regards.

0 wenxing zheng over 2 years ago in reply to pdjuandi

Hi,

Thanks your help!

So our understanding is the PCM2903C just supports VIN L input and Vout L output, VIN R input and Vout R output.

Is right our understanding?

Can you help recommend others products if we need to meet Vout L& R can output at the same time, no matter which one VIN is inputing?

Thank!

0 wenxing zheng over 2 years ago in reply to wenxing zheng

Hi.

Below is our function diagram:

0 pdjuandi over 2 years ago in reply to wenxing zheng

Hi,

What I was saying was the control of your input/output is through USB interface for example through Windows sound setting.

The speaker VOUTL/R output will always on for example as speaker in the sound setting and input will be 2 channels.

I think in Windows sound setting it will show all input channels but might not be able to select which input to use as it will enable all channels.

So this PCM2903 can be an option as long as you can select which input to use or you are ok if both channels are running.

Regards.

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