The OP5352 features 32 output channels operating at 5V (CMOS/TTL) or 3.3V (LVTTL).
Each channel implements the circuit shown below:
In addition, OPAL-RT provides a DB37 to DB37 prototype board (OP8320-4), which, when inserted in the cabling going from the simulator to the external device, allows tuning the impedance of the lines, so the signal quality is optimized. This helps to remove ringing, over or undershoots which can cause false triggering, stair-stepping, delays and loss of noise margin.
Each group of 16 channels can be configured for 5V or 3.3V operation, using the jumpers P3 and P4:
The OP5352 is ideal for interfacing with devices operating at low voltage.
TTL signals are not recommended for long-distance data transmission. We recommend using this board with cable lengths no longer than 1.5 meters (5 ft). When using longer lengths, OPAL-RT recommends terminating the lines to avoid over/undershoots or using alternative transmissions, such as differential mode (e.g: LVDS OP5355-3, RS422 OP5356-5 [5V] or OP5355-3 [3V3]).