81160A Datasheet, PDF (24/36 Pages) Keysight Technologies – Pulse Function Arbitrary Noise Generators

24 | Keysight | 81150A and 81160A Pulse Function Arbitrary Noise Generators – Data Sheet
81150A Trigger Outputs
For 81150A, a separate trigger output is provided for each channel on the front-panel.
In advanced mode internally/externally modulated (AM, FM, PM, PWM), the trigger
output has the frequency of the unmodulated carrier waveform, with a 50% duty cycle.
For FSK modulation, the trigger output has the same frequency as the data output.
That is, it alternates between the two frequencies.
If noise is selected, a trigger signal is generated when noise is restarted internally, exter-
nally or manually.
For all other modes of operation the trigger signal (TRIGGER OUT) marks the start of
each waveform period.
81150A Trigger Out 1/Trigger Out 2
81150A
Output level
TTL
ECL
Selectable TTL/ECL
0 V/2.5 V nom.
–0.85 V/–1.80 V nom.
Pulse width
Internally triggered, continuous
Externally triggered
50% duty cycle typ.
4 ns typ.
Transition time (20% to 80%)
Maximum rate
2.0 ns typ.
120 MHz¹
Impedance
50 Ω nom.
Connector
BNC, front panel
1.  For output frequencies > 120 MHz, the trigger rate is ¼ of the output frequency. If a frequency
sweep or a FSK frequency exceeds 120 MHz, the trigger rate is ¼ of the output frequency.