Mixer output analysis

Hello,

I am finding trouble in simulating the ouput of a mixer.

I have two input waves one of the frequency 400.001Mhz and other input of freq 400Mhz. I need to select the 1Khz signal from the mixer output, so I placed a low pass filter after the mixer, so as to obtain the 1Khz signal.

But, if I use Cadence transient analysis to simulate the output, I have to give a min transient analysis time of 1ms to obtain atleast 1 cycle of the wave, but now the cadence jumps from each step with about 25us (as both 800.001M and 1K signals are available), and hence it takes sufficiently long time to reach the 1 ms, and by the time it reach around 50% of simulation, the simulation covers my allocated disk quota.

Can someone tell me, what should be done for simulating this circuit?

Thanks in advance!

Only save as few nodes as necessary!

Disk quota? Sucks to be you. Definitely kill the "Save All" default option.
You may be able to set a small timestep for analysis accuracy but save
datapoints more sparsely. I think I've seen that latter, somewhere in the
menus.

Maybe if you're sneaky you can make the rawfile go someplace where
the disk quota does not apply.

some central pc hosts the cadence, we connect to that machine to do our simulation....Now each person is allocated certain space, now this simulation eats the whole space allocated and now I guess, i need to connect my external hd and run the simulation.....

I just want to know, how do you set the timestep, is it available in the transient analysis window?

I just want to know, how do you set the timestep, is it available in the transient analysis window?

Click to expand...

You can find it at the options tab of the transient analysis.