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LMH1983: Questions about LMH1983

Part Number: LMH1983

Tool/software:

To whom it may concern

I am considering the specifications of LMH1983. I have a few questions.


How to use:

I will give HD and VD in HDTV format to LMH1983. I would like the LMH1983 to output 148.5/1.001MHz in NTSC.
I would like the LMH1983 to output 148.5MHz in PAL.

Question 1: Please tell me the register setting values ​​and procedures for NTSC and PAL modes. If there is an app, please introduce it.

Question 2: Please tell me the approximate time it takes for the PLL to lock in NTSC and PAL modes.

I hope I can hear from you soon.
Best regards,

  • Hi Hiroshi-san,

    As long as the device is in Auto Format Detect mode, it will generate the clock accordingly.

    Please read datasheet section 8.3.7 for lock time details.