Hi
We use DS92LX162x since a few years in our video-products (over 6000 units). We have increasing problems with the stability of the Channel-Link III path (loosing lock --> flickering).
Each unit has two identical signal pathes (with one DES each channel at the same PCB) In case of fault one channel has the flicker problem the other works right.
Both ICs have separated but identically built power decoupling. All signal-pathes are "copied". But one channel causes problems. And after cross exchanging the IC the problem moves with the IC. --> Are there some known tolerance effects ?
Settings are all the same. Also changing the LC filtering etc. doesn't help. The Equalizer settings has a minimal effect, but the problem itself persists.
The register settings are not well documented. Are ther some undocumented register setting whith could help ?
Could you give me please a hint, what else we can do .
Thank you