Datasheet

07 | Keysight | 53131A/132A/181A Counters - Data Sheet
For time or digits arming:
Number of samples = Gate time × Frequency (Frequency < 200 kHz)
Gate time × 200,000 (Frequency > 200 kHz)
Trigger: Default setting is auto trigger at 50%.
100 ps
300 ps
53131A/81A
t
acc
Typical
Worst case
10 ps
100 ps
53132A
t
acc
x
Frequency
or period
Systematic uncertainty: ± Time base error ±
t
acc
Gate time
See graphs for worst case resolution performance.
x
+
Gate time
t
jitter
+
Gate time
t
jitter
Frequency
or period
LSD displayed:
500 ps
53131A/181A
t
res
Typical 50 ps
t
jitter
225 ps
t
res
3 ps
53132A
t
jitter
x
Frequency
or period
RMS resolution
(see Graph 2):
Gate time x Number of samples
2 2
t
res
Gate time x Number of samples
+ (2 x Trigger error )
2
t
res
2
4 x
x