Matt,
Please answer the following question.
Using the development board.
Monitoring the HSYNC pin with a Frequency Meter
When locked the H rate is 67434 Hz, source is a 804A signal generator at 1080p59.94..
When not locked the H rate varies between 67434 Hz and 67444 Hz, connected to the IPAD.
Why does the search range start at 67434 Hz?
The search range should be centered around 67434 Hz.
Stan