Agilent Technologies 4156b, User Manual, Page: 40 / 414

1-22 Agilent 4155B/4156B User’s Guide Vol.2, Edition 5
Measurement Units
Pulse Generator Unit (PGU)
Leading-edge and trailing-edge transition time
The leading-edge and trailing-edge transition times have five setting ranges as
shown in Table 1-16.
Table 1-16 Ranges and Resolutions of Leading and Trailing Transition Time
• restrictions
• leading-edge transition time
£
pulse width
´
0.8.
• trailing-edge transition time
£
( pulse period
-
pulse width )
´
0.8.
• Leading and trailing-edge transition times for a PGU must be in the same
range.
Output impedance
You can select 50
W
or Low impedance.
Trigger output
PGUs output trigger signal to synchronize with external pulse generators. If an
41501A/B has PGUs, the 41501A/B has a trigger output terminal. For details of
trigger functions, refer to “Trigger Function” in Chapter 3.
Range
Leading and Trailing
Transition Time
Resolution
1 100 ns to 1000 ns 1 ns
2 0.50
m
s to 10.00
m
s 10 ns
3 5.0
m
s to 100.0
m
s 100 ns
4 50
m
s to 1000
m
s 1
m
s
5 0.5 ms to 10.00 ms 10
m
s