Mixed signal voltage sources for generating waveform

[ant17]

hi guys i have orcad pspice 17.2 and i need to do a simulation where i have turn on and off using diffrent logic signals so i need to be able to find a vsource in the library the waveform would be similar to what you might see in a logic timing diagram if some one could help

[barry]

Do you mean a pulse/squarewave source?

[ant17]

i mean like a digtal pulse waveform like a digital signal that is a repeating signal of these logic states (on,off,off,on,on) so like the picture i have attached

[FvM]

It's not clear if our problem is specifying the signal sequence or converting it to an analog signal. Both topics are covered by the Pspice reference manual. For the latter problem, the default digital input device most likely does what you want.

[ant17]

problem is in finding a source in the library that would produce a digital waveform like the one i tried to draw attached to the forum. i know i can produce something like that with the stim1 part and its command 1 to 16 properties but i cant get it to repeat

[barry]

You could just take the brute force approach and sum three pulse sources to get your required periodic signal

[FvM]

I guess you didn't yet try PWL sources. They have repetition features.

[ant17]

how does picewiselinear

work and how do you set it up and is that the best way to do it