[time-nuts] LF power supply noise
Mike Monett
xde-l2g3 at myamail.com
Wed Jun 24 12:50:38 UTC 2009
> Mike Monett skrev:
>> Way to go Magnus. I'll check things a bit more carefully now.
> Not blame, you are making a chicken out of the feather... a
> mistyping can occur, I was just wondering why you where so
> consistent about it.
Copy & paste. Saves time and usually eliminates typos. But I should
have checked more carefully, and will do so in the future.
> BTW, as for the HP appnote, you got the wrong one. I was refering
> to one written for HP 5371A and/or HP5372A and not the HP 5370A/B.
> I think it is in the App note 358 series. Regardless, I have not
> spent quality time over it as it does not address issues which is
> particular useful for me as I don't do disc drives and rarely to
> those low rates of bitstreams.
> Cheers,
> Magnus
The HP museum shows the following list for the 358 series (sorry for
the wrap)
358-1 1987 5371A Characterization of Frequency-Agile Signal Sources
358-2 1987 5371A Jitter and Wander Analysis in Digital Communications
358-3 1988 5371A Time Domain Characterization of Magnetic Disk Drives
358-4 1989 5372A Pre-Trigger Simplifies VCO Step Response Measurements
358-5 1989 5372A Clock Rate Independent Jitter Measurements for Digital
Communications Systems
358-5 1990 5372A French Translation of AN 358-5
358-6 1989 5372A Characterizing Transient Timing Errors in Disk and Tape
Drives
358-7 1989 5372A Analysing Phase-Locked Loop Transients in the
Modulation Domain
358-8 1989 5372A Single Shot BPSK Signal Characterization
358-9 1989 5372A Modulation Domain Techniques for Measuring Complex
Radar Signals
358-9 1991 5372A French Translation of AN 358-9
358-10 1989 5372A Characterizing Baker Coded Modulation in Radar Systems
358-11 1989 5372A Characterizing Shirp Coded Modulation in Radar Systems
358-12 1990 5371A-5372A French Translation of AN 358-12
358-13 1990 5372A Analysing Phase-Locked Loop Capture and Tracking Range
http://www.hpmemory.org/ressources/resrc_an_01.htm
It looks like AN358-3 is the one you are referring to. However, it
is not listed on the Agilent site:
5372A Frequency and Time Interval Analyzer
1-12 of 12
Title/Description Date Type
PDF 667 KB Analyzing Phase-Locked Loop Capture and Tracking Range (AN
358-13)
PDF 658 KB Analyzing Phase-Locked Loop Transients in the Modulation
Domain (AN 358-7)
PDF 721 KB Characterizing Barker Coded Modulation in Radar Systems (AN
358-10)
PDF 647 KB Characterizing Chirp Coded Modulation in Radar Systems (AN
358-11)
PDF 634 KB Clock Rate Independent Jitter Measurements for Digital
Communications Systems (AN 358-5)
PDF 4.29 MB Frequency and Time Standards (AN 52)
PDF 15.4 MB Fundamentals of Time and Frequency Standards (AN 52-1)
PDF 897 KB Fundamentals of Time Interval Measurements (AN 200-3)
PDF 713 KB Modulation Domain Techniques for Measuring Complex Radar
Singals (AN 358-9)
PDF 1.33 MB Simplify Frequency Stability Measurements with Built-in
Allan Variance Analysis (AN 358-12)
PDF 943 KB Single Shot BPSK Signal Characterization (AN 358-5)
PDF 11.9 MB Timekeeping and Frequency Calibration (AN 52-2)
<http://www.home.agilent.com:80/agilent/techSupport.jspx?pid=1000001410%3Aepsg%3Apro&pageMode=AN&cc=US&lc=eng>
and it does not show up in google.
However, in order to do Phase Margin Analysis as described in the
Katz paper, you must have access to signals that are internal to the
phase detector. They are not accessible in the hard disk, so the
only signals that could be used for the HP 5372 are the same clock
and data signals that were used in AN 191-7:
http://cp.literature.agilent.com/litweb/pdf/5952-7908.pdf
Since the same signals are used, the resulting plots will be the
same. As I described previously, they are useless for any kind of
analytical measurements of the performance of the disk drive.
Regards,
Mike
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