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TVP5150 detect input signal disconnection?

hideki yamada
Prodigy 120 points

Hi,

We are developing a custom board using TVP 5150.
We are entering camera images on our board. I want to detect that the camera is down at this time.
Can you detect that the video has expired with TVP 5150?

Regards

Hideki

  • 0
    TI__Mastermind 43875 points

    You can use the H-lock status (register 0x03 bit 4). This can be read from the register and/or directed to an output pin. Note this indicates the current status. There are also a sticky 'changed' indicators for H, V, rate and color lock in register 0x1D and are cleared by writing to register 0x1C.

    The color lock can also indicate if the color sub-carrier has changed (i.e. the camera switched from color mode to monochrome mode).

    Regards,

    Steve