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LMH1983: FIN, VIN, HIN use case

Toshiro Imi
Expert 6780 points
Part Number: LMH1983

Tool/software:

Hello,

Our customer asked a question about how to set FIN, VIN, HIN if he do not use FOUT function.

Does LMH1983 work correctly when he inputs H-sync signal to HIN only (FIN, VIN keeps to low).

Best regards, 

  • 0
    TI__Guru* 94140 points

    Hi Imi-san,

    In Genlock operation, H-sync is required as the reference clock to PLL1. If the customer does not use F and V, simply leave these pin floating.

    In Free run mode, FVH are not used, we can leave them floating.