Inverter's Distorted Output

[Mohamed El Rayany]

Dear all,

I did a dc sweep of a vpulse source that have the following properties:
rise time = fall time = 1 ps,
delay time = 0,
period = 6.4 ns,
pulse width = 3.2 ns
The reason for this is that I want an input frequency of (156.25 MHz). The output is distorted wave as shown in the picture.
http://oi47.tinypic.com/2wn5hso.jpg

I want to adjust the output, can you help me ?

 

[Andrew Beckett]

On 03/10/13 19:00, Mohamed El Rayany wrote:

Dear all,

I did a dc sweep of a vpulse source that have the following properties:
rise time = fall time = 1 ps,
delay time = 0,
period = 6.4 ns,
pulse width = 3.2 ns
The reason for this is that I want an input frequency of (156.25
MHz).
The output is distorted wave as shown in the picture.
http://oi47.tinypic.com/2wn5hso.jpg

I want to adjust the output, can you help me ?

For a start, that doesn't look like a "dc sweep" - it looks like a
transient simulation (since the x-axis is time).

Secondly, it just looks as if the circuit is not working. Did you
connect up the supplies? You didn't show the circuit - maybe posting the
input.scs would help as then we could see the netlist and how it is
connected - since it is a simple circuit, presumably it would be easy to
understand.

Kind Regards,

Andrew.

 

[Mohamed El Rayany]

It was a circuit of an inverter and I found the problem and it was that I didn't assign values for the global sources.

Thank you for help Andrew