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ADV7189B LLC2 & 1 pin output on 28.63636MHz

Question asked by digital on Jun 13, 2011
Latest reply on Jun 14, 2011 by digital

Hi anyone


Could you please let us know an answer for our query?


We designed a video hardware which used ADV7189B with X'tal 28.63636MHz.
We turn on the hardware. After that, we observed the following outputs.

LLC2 pin :14.3MHz
LLC1 pin :28.63MHz


When we are checking those pins, we do not initialize internal registers of ADV7189B.
After that, we set the EN28XTAL bit from 0 to 1. we observed that those pins output the following frequencies.

LLC2 pin : 13.5MHz
LLC1 pin : 27MHz

Is our experience correct?