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TVP5146M2 Presales Question

Henry Courbis
Prodigy 20 points
Other Parts Discussed in Thread: TVP5146M2, TVP5146, TVP7002, TVP5150

1: I have a project where I need to convert legacy video signals such as CVBS NTSC and PAL, Analog and Digital RGB, and VGA to HDMI.  I believe the TVP5146M2 is the current part that would best fit my needs of getting the signals to digital.  Can someone please confirm this?  I do know the TVP5146M2 does not output to HDMI and  I need another IC for that.

2: I then would like to ask about CVBS NTSC input, and Analog RGB input with a Horizontal Scan Frequency of 15.700 kHz, and VGA at 15 kHz.  These are slightly lower than what is usually standard.  Will there be any issues when using the TVP5146M2?  Can I set the registers to sync and lock correctly to the non-standard frequency?  Or does the IC lock automatically after some time?  Or will there be need for some extra configuration or parts involved?


3: Lastly, I noticed the TVP5146EVM-TVP5146 Evaluation Module is out of stock.  Is this the board I should use for testing or is there something that supersedes it?  If I place an order then how long typically is delivery on out of stock items?

Thanks in advance for your assistance,. and I look forward to a response.

Henry

  • 0
    TI__Mastermind 43875 points

    Henry,

    The TVP5146 can only support PAL/NTSC interlaced resolutions so cannot support typical VGA RGB, which is progressive.

    To support multiple formats like this you would need something like the TVP5146/TVP5150 for NTAS/PAL and a TVP7002 for the RGB/YPbPr progressive formats.

    On the HDMI output side TI does not have any discrete HDMI transmitters. If you need to do any sort of format conversion then you will need a video processor between the video decoder and the HDMI transmitter. Many video processors have the HDMI transmitter built in though.

    Q2) The TVP7002 can decode most analog RGB/YPbPr formats up to 165MHz. The TVP5146 does not handle progressive formats.

    Q3) Unfortunately since the TVP devices are now NRND (not recommended for new designs) due to support collateral I don't think that the EVM will be available any time soon. You would need to work with a TI sales channel for EVM support. My gut feeling is that if none are currently available then there likely won't be any more produced, so you would need to build your own evaluation platform.

    BR,

    Steve