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Phase noise of VCO
My name is Sharad, I am a student. I am designing a Voltage Controlled oscillator with current mirror in Virtuoso tool. I am unable to do the phase noise calculations. Please guide me with the steps to...
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Pspice ( Spice ) simulation from virtuoso.
I will like to capture a schematic in virtuoso and run pscice simulation on it.but i am runing into a netlisting problem
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PSS analysis not converging for VCDL
I am designing a VCDL for DLL. But the PSS analysis is not converging. I am trying to change "reltol" value but @ very begining of simulation it is showing a warning'reltol' is not a valid parameter...
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rectifier impedance-simulation
hi,first: sorry for my bad english! i want to design the analog part of an RFID. to build an appropriate antenna i have to simulate the impedance at the hf1/hf2 pins of the analog part, especially the...
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ASK modulated Signal
Hi,I am designing an ASK demodulator.Can you pls tell me how to give ASK modulated signal in Cadence ADE L?I don't want to design ASK modulator and give that signal as input to demodulator. With the...
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Virtuoso 6.1.3 help with impedance in sp analysis
I am using IC cadence 6.1.3. I need to use this expression L = imag(Z11 - Z12Z21/Z22) / (2*pi*f)to find the inductor's self resoance frequency. However, after I run sp analysis, the "zp" I obtained...
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Corner and varible sweep simulation in spectre
Hi ,I am trying to do a multivariable sweep and corner simulation in spectre . In ocean , it is easy , I can do following b0_list = list(0.0 1.2)b1_list = list(0.0 1.2)b2_list = list(0.0...
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Addition of Noise file to input voltage source of Cadence Spetcre
Hi., I am facing problem in adding noise in transient analysis in cadence spectre .Can help me how to add noise as input source for transient analysis using simulator cadence spectre .
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Nport Component (S-Parameter Files) in PSS Analysis
The nport component that is used to include S-parameter files in a simulation has been improved very much in MMSIM 12.1 with respect to earlier releases. However, in its current state, it unfortunately...
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PSS analysis
Hello,Can anybody tell me how to increase the PSS maximum iteration limit to above the standard limit of 20? thanks.
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Issue with ideal multiplier in ahdlLib library in Cadence
Dear All,I am using multiplier (provided in ahdlLib library) to simulate the behaviour of mixer. One of the inputs (RF input to the mixer) is a sinusoid withh 100mV amplitude and frequency f_rf. The...
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Working with DC sweeps and OP
Hi all,I know it's not appealing to write one's first post in an RF focused group talking about DC but please bare with me :)I am interested in plotting some MOS DC parameters like gm, gmoverid, Cgg,...
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ac power calculation for rectifier in cadence ADE
Hi, I am designing a rectifier and need to calculate the efficiency.I have followed the below procedure:1. Designed a rectifier using MOSes with RF signal at 865MHz with a load current of 4uA.2....
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Working with DC sweeps and OP
Hello sir, In DC sweep (65nm technology) I saved the operating points by including M0.m1:oppoint in x.scs file. I am not able to plot the small signal parameters from calculator, but...
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spectre mtline connection problem
When using mtline model in cadence spectre schematic simulation, why I can not connect output of one mtline to output of another mtline? (warnings show there will be short circuit and floating nodes)
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[Help] How are input impedances of OpAmp meatured?
Hi,OpAmp has differential input impedance(Rd) and common input impedance(Rc). In my opinion, Rd=4*Rc. However, datasheet of OpAmp indicates that Rd is not simply related to Rc this way. Well, how are...
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Montecarlo and Envelope : not saving fd data?
Hi,as the subject says. I have an ENV simulation set up from the ADEXL environment.I created some function (using Calc) to plot a quantity of interest, based on the amplitude of some spectra out of the...
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Using Envelope OP for subsequent PSS
Hi,can anybody point me to the way to implement this? I have a circuit which I would like to analyze the 'fast behaviour' of, however there are some large time constants in the circuit so that tstab...
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MULTI-TONEs generation using single vsource
Dear All,I was trying to generate multitones [ like Vin=A1*sine(2*pi*f1*t) + A2*sine(2*pi*f2*t + phase1 in degree) + A3*sine(2*pi*f3*t + phase2 in degree) +... ] using a single source and then using...
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PAC at a time point of an ENVLP simulation...And Monte Carlo.
Hi all,I need to do some *fast* simulations of a mixer and after long searching I found out that the most stable is to do an ENV of the transient where some bias voltages settle (under LO pump,...
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