[SI-LIST] Re: Measured waveform is not stable
- From: xin.zhang@xxxxxxxxxxxxx
- To: <priyagkr@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Wed, 17 Sep 2008 22:06:19 +0800
Hi Priya,
What type of probe and scope you use? Could you find the ground pin on the
differential probe and connect it to DUT's ground. If not, please think about
connecting the scope's group and DUT's ground together.
BR,
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of priya R
Sent: 2008年9月17日 10:01 DDVP
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Measured waveform is not stable
I am seeing a wierd problem when I measure a 100MHz differential system
clock on my board. The waveform is just not stable and it keeps jumping. I
have ensured that the trigger is fine and also the single ended waveforms of
p and n are symmetrical although they are also not stable. Does power supply
noise or any other source of noise can have such an impact on the waveforms?
Any help on this will be appreciated.
Thanks,
Priya
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