HP 53132A Assembly And Service Manual page 228

Chapter 7 HP 53131A/132A Specifications
Measurement Specifications (Continued)
Measurement Specifications (Continued)
Pulse Width
Measurement is specified over the full signal range of Channel 1. The width of the opposing pulse must be greater than 4 ns (e.g., when
measuring the positive pulse width, the negative pulse width must be greater than 4 ns).
Pulse Selection:
Trigger:
Results Range:
LSD:
RMS Resolution:
t
res
Systematic Uncertainty:
± (Time Base Error × Pulse Width) ± Trigger Level Timing Error ±1.5 ns Differential Channel Error (HP 53131A)
Rise/Fall Time
Measurement is specified over the full signal ranges of Channel 1. The interval between the end of one edge and start of a similar edge
must be greater than 4 ns. (e.g., when measuring a rising edge, 4 ns must elapse between the 90% point of one rising edge and the
10% point of the next rising edge).
Edge Selection:
Trigger:
Results Range:
LSD:
RMS Resolution:
t
res
Systematic Uncertainty:
± (Time Base Error × Transition Time) ± Trigger Level Timing Error ±1.5 ns Differential Channel Error (HP 53131A)
Phase
Measurement is specified over the full signal range of Channels 1 and 2.
Results Range:
RMS Resolution:
t
res
Systematic Uncertainty:
8
Restrictions noted on page 7-2 for Auto Trigger apply to the proper operation of these measurements. The Peak Volts measurement is used to
determine the signal amplitude and inaccuracies from this, noted on page 7-11, should be included in calculating the Trigger Level Timing Error.
7-10
Positive or Negative
8
Default setting is Auto Trigger at 50%
5
5 ns to 10 s
53131A 53132A
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500 ps 150 ps
2 2
t + Start Trigger Error + Stop Trigger Error
re s
53131A 53132A
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750 ps 300 ps
Positive or Negative
8
Default setting is Auto Trigger at 10% and 90%
5
5 ns to 10 s
53131A 53132A
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500 ps 150 ps
2 2
t Start Trigger Error Stop Trigger Error
+ +
re s
53131A 53132A
------------------------------------------------------------------------------------------- -
750 ps 300 ps
–180° to +360°

2 2
( ( × ) ) ×
t 2 Trigger Error 1
+

res
53131A 53132A
------------------------------------------------------------------------------------------- -
750 ps 300 ps
(± Trigger Level Timing Error ± 1.5 ns Differential Channel Error) × Frequency (HP 53131A)
(± Trigger Level Timing Error ± 900 ps Differential Channel Error) × Frequency (HP 53132A)
2
± 900 ps Differential Channel Error (HP 53132A)
2
± 900 ps Differential Channel Error (HP 53132A)
2
 Phase  
× Frequency 360 ° ×
---------------- -
+
  
360 °
Assembly-Level Service Guide