HP 53131A Operating Manual page 180

Chapter 3 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 3-2 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 3-11, should be included in calculating the Trigger Level Timing Error.
3-10
Positive or Negative
8
Default setting is Auto Trigger at 50%
5
5 ns to 10 s
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500 ps 150 ps
2 2
t + Start Trigger Error + Stop Trigger Error
re s
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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
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500 ps 150 ps
2 2
t Start Trigger Error Stop Trigger Error
+ +
re s
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750 ps 300 ps
–180° to +360°
2 2
t 2 Trigger Error 1
+
res
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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
Operating Guide