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AD1819A Group delay

Started by Unknown October 20, 2003

Hello

I'm working on SHARC EZ-Kit and I connect DAC to ADC in order to
determine group delay, just by applying a pulse via DAC : I measure
24 samples instead of 12 specified by Analog. Does anybody can help
and give me his measure to determine who is right!!

Thanks in advance

Stephane



On Mon, 20 Oct 2003, [iso-8859-1] Sthane GOUEL Arbos Ingenierie wrote:

>
> determine group delay, just by applying a pulse via DAC : I measure
> 24 samples instead of 12 specified by Analog. Does anybody can help
> and give me his measure to determine who is right!!

I'm not sure, but are you measureing right and left as 2 samples instead
of 1? There may be some other clocking difference too. Exactly 2 off
is pretty suspicious!

Patience, persistence, truth,
Dr. mike


Just a guess.  Is it 12 out and 12 in?

At 10:56 AM 10/20/2003, Sthane GOUEL Arbos Ingenierie wrote:

Hello

I'm working on SHARC EZ-Kit and I connect DAC to ADC in order to
determine group delay, just by applying a pulse via DAC : I measure
24 samples instead of 12 specified by Analog. Does anybody can help
and give me his measure to determine who is right!!

Thanks in advance

Stephane _____________________________________
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