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Arthur Cheng
2005-03-07, 09:55
Does anyone know the voltage output from pin 48 (SPDO) of the MAS3539F
chip (the SPDIF output)? Is it 0.5V p-p or is it at TTL level?

ackcheng

seanadams
2005-03-07, 11:32
It's a 3.3v cmos output.

We buffer it through a 3v 74hc125, then through resistors to bring it
down to 500mvPP, then a 100nf cap to center it around gnd.



On Mar 7, 2005, at 8:55 AM, Arthur Cheng wrote:

> Does anyone know the voltage output from pin 48 (SPDO) of the MAS3539F
> chip (the SPDIF output)? Is it 0.5V p-p or is it at TTL level?
>
> ackcheng
>
>
>