TDA2P-ACD: why does the TDA2P-ACD needs two different external crystal clocks?

Daniel,

22.5792 MHz is handy if you are dealing with audio. This is the reason you might want that specific frequency clock.

Kevin

Hi Kevin,

is it possible to have the same frequency for both external crystals? If an external deserializer part (that needs a given frequency (i.e 25Mhz)) is connected to the TDA2P , should the TDA2p_ACD have the same crystal frequency for the second crystal?

Thanks

Daniel,

Why would you want a second crystal at the same frequency? I'd think you would just choose the first crystal as the clock source.

I doubt that the external serializer requires the same crystal frequency.

Kevin

Hi,

you are right , one clock crystal could be enough. I wondered only if two external crystals would be better for safety reasons due to the fact that the TDA2P-ACD has two internal cores.

Regards

Daniel,

If you are thinking of the A15s when you refer to "two internal cores," one clock drives both cores. You cannot separate the A15s so that they run on different clocks.

Kevin