Switching S/PDIF

[christo]

At 11:31 AM 3/25/1999 +0900, you wrote:
>I'd have to do it direct from HC through a couple of resistors. What is the
>difference between HC and HCU? Never heard of HCU. But then that's not
>surprising down here.

according to one of the chaps who designed the circuit.. 74HCU is required,
to prevent oscillation on the output pins (which happens w/an ordinary 74HC). 

(and HCU versions are cheap enough last time i checked)

the oscillation prevention should be stated somewhere in the link i
previously stated.. or elsewhere on the web on the same topic (sorry).

instructions on winding yer own pulse xformer are also here (plus
instructions on making good use of an SB16!!!)

http://sascha.esrac.ele.tue.nl/~jeroens/tech/sb16-spdif.html


once again.. enjoy.

christo