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DS100MB203: Input to Output latency

Ofer Sharivker
Prodigy 10 points
Part Number: DS100MB203

Hi,

According to spec, Transmit Data to Idle ,  Input to Output latency is 6.2ns -->  Why it's so slow ?

Why CML transition is much faster?  

Data is also CML so why there is a difference ?  .... what do I miss here? 

Thanks

Ofer Sharivker 

  • 0
    TI__Guru* 93670 points

    Hi Ofer,

    Actual propagation delay is much lower - in order of 200ps. Please note high to low prop delay in the data sheet.

    6.2nS is max delay from active to idle. In SAS applications, we need to have a quick turn around and thus we need to qualify if indeed there is no activity before we get into idle.

    Regards,Nasser