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Max Bit Rates

Paul Joseph
Expert 2795 points
What is the max bit rate for video and audio through the 6443 and 6446 DaVinci processors? Thanks!
  • 0
    TI__Expert 5750 points

     

    Max video pixel clock is 75 MHz, therefore max bit rate considering 16-bit data bus is 75 pixels/sec  x 16 bits/pixel  = 1.2 Gbits/sec

    The max raw audio data rate thru' ASPport, for a 32-bit 2 channel PCM,  is 32 x 2 x max. sampling freq = 32 x2 x 96K = 6.144 Mbits/sec

    The Linux performance measurements are in this document :  http://focus.ti.com/lit/an/sprs496a/sprs496a.pdf

     

    The above applies to both DM6443 and DM6446. The former has only a subset of peripherals and accelerators.

    Can you please describe your use case scenario, in order to better assist you in selecting the device, its speed grade and available software solutions from TI and it's third parties.