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DS90UB913A/914A

Patrick Chen
Mastermind 8875 points

Hello,

                Does DS90UB913A/914A support below video output format? Thank you. 

1. Digital RGB mode

VD0_OUT[7:0] -> interleaved RGB, VD0_OUT[7] is the MSB

2. 5:6:5 RGB mode

VD0_OUT[4:0] ->  Upper 5 bits of the Blue channel,     VD0_OUT[4] is the MSB

VD0_OUT[10:5] ->  Upper 6 bits of the Green channel,   VD0_OUT[10] is the MSB

VD0_OUT[15:11] ->  Upper 5 bits of the Red channel, VD0_OUT[15] is the MSB

3. 656 YCbCr mode

VD0_OUT[7:0] -> Interleaved Cb,Y,Cr,Y… ,      Clock rate is 27MHz, Data rate is 13.5MHz

4. 16-bit 656/601 YCbCr mode

VD0_OUT[7:0] -> Y,   VD0_OUT[7] is the MSB

VD0_OUT[15:8] -> Interleaved CbCr,    VD0_OUT[15] is the MSB

BR

Patrick

  • 0
    TI__Expert 5210 points

    Hello Patrick,

    The 913A and 914A chipsets support a RAW10 or RAW 12 input/output format. This means that if the data you are sending is in a format that is accepted by the host processor (MPU) on the deserializer (914A) side, these chipsets will send it without issues over the FPD-Link interconnect.


    With this in mind:


    1. Supported.

    2. Only the first 12 bits are supported. The 913A has 3 input modes which support 10 or 12-bits of input data; not 16 bits as you listed.

    3. Only supported in 12-bit low frequency mode with a clock rate that low. 12-bit low frequency mode supports PCLK = 25 MHz to 50 MHz.

    4. Only the first 12 bits are supported. 16 bits are listed.

    -Sean

  • 0 in reply to Sean Thornton1
    Mastermind 8875 points
    Dear Sean,

    Thanks your reply. if 16 bit are not supported, DS90UB925Q could support this all format I list? Thank you.

    BR
    Patrick
  • 0 in reply to Patrick Chen
    TI__Expert 5210 points
    Hello Patrick,

    Yes, the DS90UB92x series (i.e. DS90UB925) will send any format as long as this format is CONVERTED by the processor/display side. We do not do any conversion inside the 913A/914A or 92x chipsets - we only send the data independent of the format. Since the 92x series supports 24-bit data transfer then yes, this would support 16 bits. The 913A/914A only supports 10 or 12 bit data transfer as mentioned above.

    One more thing to note is that in order to latch the data and output it on the deserializer side for the 92x series, the customer must toggle DE = 1 on the serializer side (i.e UB925). This is the data enable bit which must be high in order to have the data received and output. The 913A/914A which is for automotive camera applications, does not have this bit and therefore does not need it to toggle to output data.

    -Sean