which is a better spdif-to-cmos converter?

[rlim]

Here are 2 slightly different designs of the spdif to cmos converter, both using unbuffered inverters, taken from this forum. If we incorporate Fred's suggestions of configuring the inverter for a gain of ~25 for the second design, and then compare it to the first design, which one would be the better design, technical wise and sound wise?

[rlim]

insert 2k resistor in series with c2, and change r1 to 50k.

[tiroth]

In my experience, the first one works better. But if you ask Jocko he will throw up due to the diodes.

Of course, he won't like #2 either.

[Jocko Homo]

No way...get them out of there!

No. 2........might work better if you don't use one chip...............

Jocko

[Elso Kwak]

Hi rlim,
This also "works":
http://www.diyaudio.com/forums/showt...664#post227664