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Original question:

[FAQ] TDA4VM: Latest FAQs on TDA4

TDA4VM: TDA4VM ISP processing peformance

Jiacai Wang
Intellectual 420 points
Part Number: TDA4VM


Hi,

Please help me to confirm that TDA4 ISP performance is 720Mbps or 720M pixels/s ? 

if ISP performance is 720M pixels/s, is it same performance if pixel depth is 8bit/10bit/12bit raw data ?

 Is it different calculation method for different pixel depth?

For example: 5M pixel 12bit raw data @ 30fps 

5M* 12bit/8bit *30fps = 225M pixel per second

if I am wrong, please correct my understanding.

Thanks

  • 0
    TI__Mastermind 24525 points

    TDA4 family ISP max clock is 720p MHz. The actual clock maybe lower depending on the exact part number and OPP settings.

    Theoretical throughput is 1pix/cycle. This remains independent of pixel depth. Actual throughput maybe lower because of system overheads like sensor blanking etc.