Chapter 3 Specifications
Introduction
Operating Guide
3-9
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 (Agilent 53131A)
± 900 ps Differential Channel Error (Agilent 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
re s
2
Start Trigger Error
2
Stop Trigger Error
2
+
+
53131A 53132A
750 ps 300 ps
--------------------------------------------------------------------------------------------
1
Ch2
⁄
C h1
C h3
⁄
Ch 2
Ch 1
⁄
Ch3
C
⁄
Rat io 1 2
⁄
:
1
Ch2 Freq
Gate Time
×
------------------------------------------------------------
Rat io 1 3
⁄
:
1
Ch3 Freq
Gate Time
×
------------------------------------------------------------
Rat io 2 1
⁄
:
Ch2 Freq
Ch1 Freq
(
)
2
Gate Time
×
-------------------------------------------------------------------
Rat io 3 1
⁄
:
Ch3 Freq
Ch1 Freq
(
)
2
Gate Time
×
-------------------------------------------------------------------
Ra tio 1 2
⁄
:
2
1
Ch1 Freq
Ch2 Trigger Error
×
(
)
2
+
×
Ch2 Freq
Gate Time
×
---------------------------------------------------------------------------------------------------------------
Ra tio 1 3
⁄
:
2
1
Ch1 Freq
Ch3 Trigger Error
×
(
)
2
+
×
Ch3 Freq
Gate Time
×
---------------------------------------------------------------------------------------------------------------
Ra tio 2 1
⁄
:
2
Ch2 Freq
1
Ch1 Freq
Ch2 Trigger Error
×
(
)
2
+
×
×
Ch1 Freq
(
)
2
Gate Time
×
-----------------------------------------------------------------------------------------------------------------------------------------------
Ra tio 3 1
⁄
:
2
Ch3 Freq
×
1
Ch1 Freq
Ch3 Trigger Error
×
(
)
2
+
×
Ch1 Freq
(
)
2
Gate Time
×
-----------------------------------------------------------------------------------------------------------------------------------------------
Summary of Contents for 53181A
Page 2: ...NOTES...
Page 14: ...Contents x Operating Guide...
Page 24: ...Preface xx Operating Guide...
Page 33: ...1 Getting Started...
Page 68: ...Chapter 1 Getting Started Making Measurements 1 36 Operating Guide 1...
Page 69: ...2 Operating Your Frequency Counter Operator s Reference...
Page 143: ...3 Specifications...
Page 160: ...Chapter 3 Specifications Introduction 3 18 Operating Guide...
