SP209 Series User Manual
SP209 / SP209i
• A or B (whoever triggers first)
Finally, an external trigger output is always active, in all modes and generates a trigger pulse whenever
a trigger condition is met and a capture starts. Signal specifications for External trigger input and
output are detailed in the following section.
External trigger OUT specifications
Figure 5: External trigger OUT timings
There is an internal data path delay of 20ns before external signals reach internal trigger engine (T0).
When trigger event occurs, 10ms (T2) pulse is generated on the Trig Out port. This port has a 50 Ωseries
impedance allowing easy interfacing to 50 Ωinput devices. This can be used to synchronise the capture
with other equipment like an oscilloscope. Polarity of the trigger can be set in software. There is also a
10 ns delay (T1) between internal trigger detection and Trig Out assertion. Therefore, the total time for
an external event to generate a Trigger OUT pulse is T0+T1 = 30ns.
(c) Ikalogic SAS 2019
