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SN65LVDS315 to TVP5150AM1 compatibility

Donato David
Prodigy 20 points
Other Parts Discussed in Thread: TVP5150AM1, SN65LVDS315

Is it possible to link the TVP5150AM1 Ultralow-Power NTSC/PAL/SECAM Video Decoder to the SN65LVDS315 CAMERA PARALLEL RGB TO MIPI CSI-1 SERIAL CONVERTER?

We detected that the possible problem is that the output clock frequency of TVP5150AM1 is 27 Mhz while the SH65LVDS315 is only capable of 26 Mhz input clock frequency

  • 0
    TI__Genius 16430 points

    The LVDS315 is designed and tested to handle input clocks between 3.5-26MHz. This is suitable for resolutions up to 640x480@60Hz (which is typically 25.175MHz, per VESA standards).

    If the data is supplied to the LVDS315 with a pixel clock of greater than it is spec'd to support, it can lead to data loss/corruption as it is just not capable of keeping up with the incoming bitrates.

  • 0 in reply to DHarmon
    Prodigy 20 points

     

    I browsed TI website and it seems that LVDS315 is the only  MIPI-CS1 compliant device.

    Can you recommend an single chip ( or multiple chip equivalent ) that can interface an NTSC signal (from a camera) to an MIPI-CS1 compliant Video Graphics Processor?

     

     

     

  • 0 in reply to Donato David
    TI__Genius 16430 points

    Unfortunately I am not aware of any chip that takes analog video and converts it directly to CSI.  If you have not already done so, I would recommend you post to the Video Converters Forum to see if they have any suggestions.

  • 0
    TI__Mastermind 20985 points

    Mr. David,

    I noticed that the TVP5150AM1 datasheet specs a PCLK frequency of about 24.5 - 28.7MHz, with 27MHz nominal.  I'm not familiar with this device or how flexible the input/output frequency is, but potentially you might be able to run it on the slower side, for LVDS315 support.  I agree with Dan's suggestion that you could ask this on the forum for TVP.

    Thanks,
    RE