Hello Chris,
as I never used a HP scope, I can not say more. What I would suggest would be maybe a HP 53310 Modulation Analyzer, or a DPO.
May I ask where you are based. Maybe, you can slink by my place and we do the measurement together, or maybe you can lend a DPO from a friend.
Tam
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On 12.10.2018 16:07, Chris Wilson wrote:
Hello Tam,
Friday, October 12, 2018
It is pretty random, sometimes sevral times within a five second span
sometimes once in 10 seconds. Thanks for the reply. I feel the 54501A
may be able to do it, but I would certainly need some guidance. I am
looking at page 53 of the front panel manual I lined to, but rather
uncomprehendingly ;)
Best regards,
Chris mailto:chris@...
TH> Hello,
TH> sorry to ask stupid - how often does the glitch occur, as in how often
TH> in time?
TH> Tam
TH> With best regards
TH> Tam Hanna
TH> ---
TH> Enjoy electronics? Join 8300 other followers by visiting the
TH> Crazy Electronics Lab at
TH> On 11.10.2018 22:38, Chris Wilson wrote:
11/10/2018 21:36
I have a Si5351a synthesiser chip that is supposed to give out 180
degree out of phase 137kHz square waves from pins CLK9 and CLK1. I
believe the firmware that runs it may have a bug as I see the
occasional drop out, very brief and seemingly random. I THINK there
may be a higher frequency, lower amplitude signal showing during these
glitches. My scopes are quite basic, a Dataman 526 150 MHz USB scope
and a Philips PM3380 100 MHz "combiscope" that can be switched from
analogue to digital. My knowledge of their usage is pretty rudimentary
I am afraid, although I know the basics.
I also have an elderly HP scope a HP 54501A 100MHz 4 channel jobbie.
I suspect the old HP *MAY* be able to do this, but even with studying
the manual I am still unsure and if it *CAN* do this I would need
precise instructions as to how to set it up please!
I have never attempted to catch a *dropped* waveform, could anyone
suggest if any of these scopes are capable of showing what happens
during these glitches please? Thanks.
TH>
