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Chapter 7 HP 53131A/132A Specifications
Measurement Specifications (Continued)
Assembly-Level Service Guide 7-9
7
Time Interval
Measurement is specified over the full signal ranges
7
of Channels 1 and 2.
Results Range: –1 ns to 10
5
s
LSD:
RMS Resolution:
t
res
Systematic Uncertainty: ±(Time Base Error × TI) ± Trigger Level Timing Error ± 1.5 ns Differential Channel Error (HP 53131A)
± 900 ps Differential Channel Error (HP 53132A)
Time Interval Delay
After a Time Interval Measurement has begun by satisfying the trigger conditions on Channel 1, the instrument will wait for the
user-entered delay time to elapse before the end-of-measurement trigger will be accepted on Channel 2. Please refer to Measurement
Arming for additional information.
Frequency Ratio:
Measurement is specified over the full signal range of each input.
Results Range: 10
–10
to 10
11
‘Auto’ Gate Time: 100 ms (or sufficient cycles on Channel 2 or 3 to make a valid measurement, whichever is longer)
LSD:
RMS Resolution:
To minimize relative phase measurement error, connect the higher frequency signal to Channel 1 when possible.
7
See Specifications for Pulse Width and Rise/Fall Time measurements for additional restrictions on signal timing characteristics.
Measurement Specifications (Continued)
53131A 53132A
500 ps 150 ps
--------------------------------------------------------------------------------------------
t
res
2
Start Trigger Error
2
Stop Trigger Error
2
++
53131A 53132A
750 ps 300 ps
--------------------------------------------------------------------------------------------
Ch1
Ch2
⁄
Ch1
Ch3
⁄
Ch2
Ch1
⁄
Ch3
Ch1
⁄
Ratio
1
2
⁄
:
1
Ch2 Freq Gate Time
×
-----------------------------------------------------------
Ratio
1
3
⁄
:
1
Ch3 Freq Gate Time
×
-----------------------------------------------------------
Ratio
2
1
⁄
:
Ch2 Freq
Ch1 Freq
()
2
Gate Time
×
------------------------------------------------------------------
Ratio
3
1
⁄
:
Ch3 Freq
Ch1 Freq
()
2
Gate Time
×
------------------------------------------------------------------
Ratio
1
2
⁄
:
2 1 Ch1 Freq Ch2 Trigger Error
×()
2
+×
Ch2 Freq Gate Time
×
-------------------------------------------------------------------------------------------------------------
Ratio
1
3
⁄
:
2 1 Ch1 Freq Ch3 Trigger Error
×()
2
+×
Ch3 Freq Gate Time
×
-------------------------------------------------------------------------------------------------------------
Ratio
2
1
⁄
:
2 Ch2 Freq 1 Ch1 Freq Ch2 Trigger Error
×()
2
+××
Ch1 Freq
()
2
Gate Time
×
--------------------------------------------------------------------------------------------------------------------------------------------
Ratio
3
1
⁄
:
2 Ch3 Freq
×
1 Ch1 Freq Ch3 Trigger Error
×()
2
+×
Ch1 Freq
()
2
Gate Time
×
--------------------------------------------------------------------------------------------------------------------------------------------