Keysight M8195A - External Inputs

3 Sequencing
116 Keysight M8195A Revision 2 – Arbitrary Waveform Generator User’s Guide
3.6.1 External Inputs
3.6.1.1 TRIGGER/EVENT
The M8195A accepts a wide range of external trigger signal levels to easily adapt to a
measurement setup. The input threshold is user configurable along with the polarity or
whether rising, falling or both edges are to be taken into account. Two modes of
operation are available: Asynchronous and Synchronous triggering.
3.6.1.1.1 Synchronous Triggering
The TRIGGER and EVENT input signals are clocked internally with the SYNC clock.
[SYNC clock = Sample clock divided by 256]. To reduce the TRIGGER to DATA out
uncertainty the signal applied to the external input connector needs to meet a setup
and hold window. The timing is specified with respect to the SYNC Clk Out port. See
the data sheet for further details.
Figure 29: TRIGGER/EVENT synchronous to the sync clock (synchronous tmode)
Trigger is sampled with next rising edge of SYNC Clock
Sample Clock
SYNC Clock
Trigger Case #1
Trigger Case #2
Output
(in both cases)
Trigger latency in Case #1
Trigger latency in Case #2
Internal processing has no uncertanity