Issue link: https://resources.pcb.cadence.com/i/1180526
PSpice User Guide Mixed analog/digital simulation October 2019 644 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Setting the default A/D interface For mixed-signal simulation, you can select the AtoD and DtoA interface level circuit-wide and on individual part instances. ■ To select the default interface level circuit-wide, select one of the four Default A/D interfaces in the Simulation Settings dialog box by selecting the Gate-level simulation category under the Options tab. Part instances with the IO_LEVEL property set to 0 use this value. ■ You can override the circuit-wide default on an individual part by specifying an IO_LEVEL property from 1 to 4, where: For example, you can tell the simulator to use the level 2 interface subcircuits for a 7400 part by setting the IO_LEVEL property to 2. All other part instances continue to use the circuit-wide setting. By default, IO_LEVEL is set to 0, which tells the simulator to use the circuit-wide level defined in the Gate-level simulation category in the Simulation Settings dialog box. 1: AtoD1 and DtoA1 (default) 2: AtoD2 and DtoA2 3: AtoD3 and DtoA3 4: AtoD4 and DtoA4