Difference: AMC13DebugLog (58 vs. 59)

Revision 5918 Jun 2013 - DavidZou

Line: 1 to 1
 
META TOPICPARENT name="CmsSlhc"
Please log AMC13 test activity below, blog style (new entries at top)

2013-06-17, dzou, hazen

  • Move probe to LVDS pair between U3 and U4 on T1 (Fanout and divider chip) and repeat measurements.
Added:
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  • Typical exponential behavior of phase shift. Height of roughly 200 ps (after power off of 5 mins).
  • Data in Sheet 5 of: ClockPhaseShift.xlsx

Plot of clock phase at various power off times

 

2013-06-14 dzou, dickens

  • Update TTT firmware and tested range of TTT SN 2: Found similar results as 2013-06-13 entry. AMC13 clock stops working at somewhere between 80 and 90 MHz. Lock lost at around 120 MHz.
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