NF WF1946B - Page 187

8.3 Other functions
WF1946B 8-7
z Sweep input/output
Sweep trigger input
Input level
Signal characteristic
Minimum pulse width
Input impedance
Input connector
Synchronous sweep output
Output level
Signal characteristics
Output impedance
Load impedance
Output connector
Sweep stop/restart input
Input level
Signal characteristic
Input impedance
Input connector
Sweep marker output
Output level
Signal characteristic
Output impedance
Load impedance
Output connector
Sweep X-DRIVE output
Output level
Signal characteristics
Output impedance
Load impedance
Output connector
High level ≥ +3.9 V, low level ≤ +1.6 V
Single/gated sweep start at rising or falling edge (selectable)
200 ns.
At 10 kΩ, pulling up to +5 V
Front panel, BNC receptacle (TRIG/SWEEP IN)
Combined use with trigger input for gate, trigger and trig’d gate
0/+5 V (open)
Low level: sweeping from start to stop
High level: Other times
(If
sweep, high level for about 0.2 ms to 0.5 ms directly
before quick change from stop to start.)
50 Ω, unbalanced
45 Ω and more
Front panel, BNC receptacle (SYNC OUT)
Combined use with SYNC OUT
High level ≥ +3.9 V, low level ≤ +1.6 V
Low level: sweep interrupt
High level: stop release
At 10 kΩ, pull up to +5 V.
Rear panel, BNC receptacle (SWEEP PAUSE IN)
0/+5 V/open
Low level: exceeds marker during sweep.
High level: other times
30 Ω, unbalanced
1 kΩ and more
Rear panel, BNC receptacle (SWEEP Z-MARKER OUT)
0 V to +5 V/open
0 V→+5 V: sweep value is increasing.
1 kΩ, unbalanced
10 kΩ and more
Rear panel, BNC receptacle (SWEEP X-DRIVE OUT)