Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Can anyone that has attended Besser Associates' course in "RF measurement: Principles and Demonstration" provide some comments on the course please? Is the course useful, practical, or hands-on? Thank you so much.
**broken link removed**
pfd cp noise
Does anyone know the difference between different "noise type" in Pnoise analysis, i.e "sources", "time domain", "modulated", when simulating for PFD/CP? I'd greatly appreciate it if anyone can show me how to set up the PNoise analysis for PFD/CP using those different "noise type"...
linear range of PFD
Is there a normal value for the linear range for PFD over a 4*pi span, say 70% or 80%? Or is it strictly a relative term as long as it can satisfy the frequency acquizition time requirement? As far as I know, the closer to 4*pi the linear range, the faster the PLL can...
If my simulation includes only PFD, CP and the loop filter components, what simulations do I have to run to make sure my PFD/CP is working ok? I've run phase sweep between 2 identical frequencies going into the PFD, and plotted average integrated CP output current vs. phase...
Can anyone comment on how to get the LC VCO to oscillate in transient analysis please? Initial conditions are set, and PSS/Pnoise works fine. But in transient analysis VCO simply doesn't oscillate. Thank you.
For a zero-IF double-balanced mixer, is transient analysis with Monte Carlo the only valid way to simulate for IIP2? Can QPSS/Monte Carlo be used in this situation? IF the IIP2 is around 50dBm, what's the appropriate tolarance control(reltol, vabstol, iabstol)? Thank you.
The inband IIP3 for WCDMA is specified @ 10MHz offset. So I ran a 2-tone test w/ following parameters,
First of all, should I have used the 2 tones @ 10/20.5MHz so that IM3(0.5MHz) falls within the BW(5MHz)?
Secondly, due the LPF @ mixer output w/ cutoff...