Position Synchronized Output (PSO) Interface

This output signal is a 5V TTL signal which is used to drive an opto coupler or general purpose TTL input. This signal is active high and is driven to 5V when a PSO fire event occurs.

You can use the external PSO synchronization functions to synchronize waveform generation with an external synchronization signal. When you activate this feature, the PSO Waveform module will not generate the configured waveform when an output event is received until the rising edge of the synchronization signal occurs.

Table: PSO Specifications

Specification	Value
Output	5 V, 50 mA (max)
Maximum PSO Output (Fire) Frequency	12.5 MHz
Output Latency [Fire event to output change]	15 ns

Specification

Value

Output

5 V, 50 mA (max)

Maximum PSO Output (Fire) Frequency

12.5 MHz

Output Latency

[Fire event to output change]

15 ns

Table: PSO External Sync Specifications

Specification	Value
Voltage	3.3 VDC
Frequency	25 MHz Maximum
On Time	20 ns Minimum

Table: PSO Output Pins on the Analog I/O and Laser Interface Connector

Pin #	Description	In/Out/Bi
11	PSO Output (TTL)	Output
1	Common	Output
14	PSO External Sync	Input

Figure: PSO TTL Outputs Schematic

Figure: PSO External Sync Input Schematic