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Re: [Discuss-gnuradio] Re: Questions on usrp_tv_rcv.py

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] Re: Questions on usrp_tv_rcv.py
Date: Tue, 23 Jan 2007 11:51:50 -0800
User-agent: Thunderbird (X11/20070104)

Anastasopoulos Achilleas wrote:
> I guess I am attempting an answer to myself here:
> the slow horizontal sliding reveals a
> missalignment on the order of
> 200 samples/sec.
> (I measured that by seeing how much the black strip moves
> to the right within the 1 sec of video stream).
> For a sampling rate of 8Msps this is can be explained by a
> drift/jitter of the ADC on the order of 25ppm
> Is this within the drift/jitter specs of the ADC?

Yes, the master clock is spec'ed at +/- 50ppm over temp


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