81160A Datasheet, PDF (25/36 Pages) Keysight Technologies – Pulse Function Arbitrary Noise Generators

25 | Keysight | 81150A and 81160A Pulse Function Arbitrary Noise Generators – Data Sheet
81150A Strobe Outputs
A strobe output is provided for each channel on the front-panel of pulse generator
81150A. The strobe output signal has a different function, depending on the mode of
operation.
If no advanced mode is selected, the strobe output is a constant low.
In advanced mode internally/ externally triggered or gated burst, the strobe output
provides a signal indicating the duration of a burst. The rising edge of the strobe signal
is synchronized to the start of the first waveform period in a burst. The falling edge is
synchronized to the start of the last waveform period in the burst.
In advanced mode sweep with the frequency marker off, the strobe output is a pulse
with half the duration of the sweep. The strobe signal goes high at the beginning of the
sweep.
In advanced mode sweep with the frequency marker on, the strobe output goes high
at the beginning of the sweep and goes low at the marker frequency.
In pattern mode (block mode = On), the strobe output goes high at the beginning of
the pattern and goes low at the last bit of the pattern. Refer to the User Guide for more
details.
In advanced mode internally/externally modulated (AM, FM, FSK, PM, PWM), the strobe
output is the analog modulation waveform.
In pattern mode (block mode = On), the logical strobe signal goes high at the beginning
of the pattern and goes low at the last bit of the pattern. Refer to the User Guide for
more details.
81150A Strobe Out 1/Strobe Out 2
Digital output level
TTL
ECL
Analog output level (modulator)
Impedance
Connector
Min pulse width
Transition time (20% to 80%)
81150A
Selectable TTL/ECL
0 V/2.5 V nom.
–0.85 V/–1.80 V nom.
–2.0 V to 2.0 V (full scale)
50 Ω nom.
BNC, front panel
4 ns typ.
2.0 ns typ.