[SI-LIST] How to interpret Jitter Specification
- From: "Bashir, Shiraz (MED)" <Shiraz.Bashir@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Thu, 22 Jul 2004 15:22:45 -0500
Hi,
Motorola recommends following:
"CLKIN Jitter and Duty Cycle The CLKIN input to the MPC8280 should not
exceed +/- 150 psec. This represents total input jitter-the combination of
short term (peak-to-peak)and long term (cumulative). The duty cycle of CLKIN
should not exceedthe ratio of 40:60."
We intend to use a Spread Spectrum Oscillator and want to make sure we don't
violate Motorola's recommendation.
While selecting Spread Spectrum Osc what specification I should be looking
for to meet Motorola's recommendations ?
Thanks,
shiraz bashir
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