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HD3SS3415: HD3SS3415

Ian Wang
Mastermind 26355 points
Part Number: HD3SS3415
Other Parts Discussed in Thread: DS90CF366, , DS90C365A, TS3V713EL

Dear Sir,

My customer looking for a 8-bit 2-to-1 mux and HD3SS3415RUAT is in system. It is designed for LVDS different signaling. I was wondering if it can also be used for general single ended signals?

The input will be RGB and BT.656 and the clock speed could be up to 150MHz.

Thanks, Ian.

  • 0
    TI__Mastermind 29645 points
    Hi Ian,

    Based on your description, I am assuming that the single-ended signals are LVCMOS logic, in which case there may be some voltage logic level issues when interfacing with a device that expects differential LVDS. For example, there may incompatibilities with the voltage swing and common mode voltage level. I would suggest using a SerDes device and then interfacing this through the HD3SS415, such as the following:

    DS90C365A -> HD3SS3415 -> DS90CF366

    Note that the above solution will only work up to 85 MHz clock.

    I noticed though, that the clock speed may be as high as 150 MHz. Do you have more details about this application? Is it switching between displays or camera sources? Any information you have regarding the sources/sinks in this system maybe helpful.

    Thanks,

    Michael
  • 0 in reply to Michael Lu (Santa Clara)
    TI__Mastermind 26355 points
    Dear Michael,
    Actually, customer would like using it for Video(R.G.B) Switch.
    Is it make sense?
    Thanks, Ian.
  • 0 in reply to Ian Wang
    TI__Mastermind 29645 points

    Hi Ian,

    If the customer wants to use an RGB switch, can you let us know whether the R, G, and B values are already in digital form, or are they still in analog?

    - If they are in digital, there will be up to 8 bits for R, 8 for G, and 8 for B.

    - If they are in analog, there will only be one signal for R, one for G, and one for B.

    In our catalog, our RGB switches are all assuming that the RGB signals are analog. If the customer is looking for an analog switch for RGB to route to 2 possible locations, then perhaps the TS3V713EL makes sense here:

    Unfortunately, I am unaware of a digital solution that does not involve another chipset for serialization.

    Regards,

    Michael