[Elecraft] K4 Sound Card, used for Weak Signal Digital Modes.

[Andy Durbin]

"It was interesting to see that the shared data sheet shows even the latest version of the PCM2903 is not recommended for new designs"

Well, the PCM2903C seems to be the latest version of the PCM2903 and it does not have the NRND designation.  The PCM2901 datasheet reference to PCM2903E is puzzling (at least to me).

http://www.ti.com/lit/ds/symlink/pcm2903c.pdf

73,
Andy, k3wyc