Atec Agilent-81150A-81160A - Manual (Page 24)

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81160A Trigger and Strobe
Outputs Sync Out A and
Sync Out B
1 channel instrument
81160A
Sync Out A source None, logical trigger signal 1, logical strobe signal 1
Sync Out B source None, logical trigger signal 1, logical strobe signal 1
1) It is e.g. possible, that the logical trigger signal 1 functionality is routed simultaneously to Sync Out A and
Sync Out B.
2 channel instrument
81160A
Sync Out A source None, logical trigger signal 1, logical strobe signal 1,
logical trigger signal 2, logical strobe signal 2
Sync Out B source None, logical trigger signal 1, logical strobe signal 1,
logical trigger signal 2, logical strobe signal 2
1) It is e.g. possible, that the logical trigger signal 1 functionality is routed simultaneously to Sync Out A and
Sync Out B.
Sync Out A/Sync Out B
81160A
Digital output level
TTL
ECL
Analog output level (modulator) 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),
Available, if routed to logical Strobe Out
Impedance 50 Ω nom.
Transition time 0.8 ns typ. (20%/80%)
Connector BNC, front panel
The logical trigger output and logical strobe output functionality is described below.
Logical trigger signal
The logical trigger signal is an internally generated signal that can be routed to the BNC
connector of Sync Out A or Sync Out B. For the two channel instrument, the logical trigger
signal is generated for both, channel 1 and channel 2.
In advanced mode internally/externally modulated (AM, FM, PM, PWM), the logical
trigger signal has the frequency of the unmodulated carrier waveform with 50% duty cycle.
For FSK modulation the logical trigger signal generates the same frequency as the data
output – it alternates between the two frequencies.
If noise is selected, a trigger signal is generated when noise is restarted internally,
externally or manually.
For all other modes of operation the logical trigger signal marks the start of each
waveform period.
For the one channel instrument as well as the two channel instrument two high speed
outputs Sync Out A and Sync Out B are provided at the front panel. The Sync output
signals can be confi gured very fl exible by an internal switch matrix to output the logical
Trigger Out functionality or Strobe Out functionality according to the following switch
matrix.