From: [email protected]
Date: Tue Feb 08 2000 - 19:56:15 PST
If your signal is fairly repetitive and you are not keen on capturing the
transition info such as ringing, then a low analog bandwidth scope may be
okay. To view the transition edges more closely, it is the real-time
sampling rate that is important rather than the analog bandwidth. You may be
aware that very high analog bandwidths can be achieved, even with low
real-time sampling rates, by repetitive sampling techniques such as Random
repetitive sampling or Sequential sampling.
Agilent's this website gives fairly good information on the Oscilloscope
> -----Original Message-----
> From: Ron Miller [SMTP:[email protected]]
> Sent: Monday, February 07, 2000 12:01 PM
> To: [email protected]
> Subject: Re: [SI-LIST] : DSO Selection
> If the data rate is 500 mbs, the maximum frequency is 250 mhz.
> However, to get a good picture of the waveform, 3X or 5X or even 7X the
> max frequency is required(odd harmonic content). 5X 250 would yield
> 1.25 Ghz and should give reasonable results.
> Ron Miller
> [email protected] wrote:
> From: Manic[email protected] TECHNOLOGY on 02/07/2000 01:20 PM
> To: [email protected]
> Subject: DSO Selection
> Dear All,
> We are in the process of selecting a Digital Storage Oscilloscope.
> signal rate we are interested in is from DC to 500MHz.
> The theory is to choose a DSO that has a bandwidth of 5 times the
> rate of
> signal and a sampling rate of 2.5 times the rate of signal.
> But in practical, we are able to measure a 100-MHz signal with a
> bandwaidth DSO.
> So, can we choose a twice BW, and Sampling rate DSO to measure a
> Your suggestions and comments would be greatly helpful.
> Manix Velu.
> Encl: Nil.
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> Ronald B. Miller _\\|//_ Signal Integrity Engineer
> (408)487-8017 (' 0-0 ') fax(408)487-8017
> Brocade Communications Systems, 1901 Guadalupe Parkway, San Jose, CA
> [email protected], [email protected]
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