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krishu 20th February 2004 09:51 PM

CS8414 vs. CS8412; (TC)74HCU04 replacement?
2 Attachment(s)

may I replace the CS8412 receiver with the CS8414 (e.g. doededac (It is much cheaper here).

Also, I am looking for (TC)74HCU04 but did not find where to buy it. TI refuses to send me a sample (I know the reason ...) Can I use 74HC04 instead of it? I want to use it in my digital output stage. schematic attached.

Thanks in advance


fastcat95 21st February 2004 03:43 PM


The CS8414 is pin for pin compatable with the CS8412,
but may have a different analog filter configuration. People
debate the sonics of the 2 chips.

The 74HCU04 ligic chip can be had from Mouser Electronics (USA)
( Some say that the newer 74VHCU04 chip is
better sonically, and still others say that paralleling the logic
gates will increase jitter in the data stream. I am going to
build an SPDIF out circuit using a 74VHCU04 gate, followed
by an RS422 line driver chip and resistors to make the 74 ohm
output impedance.


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