Pss Analysis In Spectre |
 |
203 Threads found on edaboard.com: Pss Analysis In Spectre
I need simulate AC for SC- S/H
How use pss analysys in spectre? I do not understand parameters. Explain me pls. Or may be some tutorials? Thanks a lot.
Analog IC Design and Layout :: 11.02.2008 12:07 :: yxo :: Replies: 3 :: Views: 893
How to do pss analysis in cadence spectre..I had given pss run for SC filter with sampling freq=10MHz and fun=3KHz.Its taking very long time to simulate..I am not ablet debug the problem.plz help me?
Analog Circuit Design :: 01.10.2007 07:43 :: rampat :: Replies: 2 :: Views: 1431
Hi guys,
When I was trying to evaluate the Phase Noise performance of my LC tank VCO, I got a problem with the tools. I was following the spectre RF tutorial from Cadence. It mentioned:
"Note: If your oscillator circuit does not contain a stimulate to start the oscillator, you must run a transient analysis before you run this pss (...)
RF, Microwave, Antennas and Optics :: 26.08.2009 00:32 :: Ding Yan :: Replies: 3 :: Views: 2629
Do someone know what's the purpose of pss and Qpss analysis in spectre simulator? What's difference between pss and Qpss? Thanks in advance!
Analog Circuit Design :: 16.06.2004 08:35 :: terryssw :: Replies: 1 :: Views: 1374
hello everybody,what di u mean by beat frequency in pss analysis in spectre,is it ur oscillator output frequency?also is a standalone analysis of the vco phase noise enough or u need to calculate the phase noise when the pll is a part of the system.i am unable to calculate phase noise of vco as a part of the pll system,cause (...)
Analog Circuit Design :: 23.04.2005 23:53 :: amarnath :: Replies: 4 :: Views: 1814
Excuse me , How do u apply two tone in Hspice , In spectre , it is easy to simulatr the IM3 , You can use pss or Using two tone (Vsin) , Then Using FFT to check the two tone .
Example : 49M , 50M , check the two tone . The fft base is 1M ..
Thanks
Analog IC Design and Layout :: 17.12.2005 01:16 :: mitgrace :: Replies: 1 :: Views: 647
For RF analyses in spectre
pss, qpss, pac,psp ... and etc.
As I am not a RF engineer.
what is the use of those analysis?
any reference I know study such that I know what are they?
thx
Analog Circuit Design :: 10.07.2006 06:12 :: davidwong :: Replies: 0 :: Views: 966
Hello Friends...
Can anyone guide me how to do pss analysis in Cadence spectre.
Coz i need to simulate Switched capacitor filter for which pss analysis is required.
Can anyone tell how to do brief...
Thanks in Advance
Bhagath
Analog IC Design and Layout :: 19.05.2008 15:11 :: shady205 :: Replies: 1 :: Views: 638
Now I've understood better your problem.
The question is not on the simulator, but on what you're looking for.
Usually in differential amplifiers, if you're interested in differential signal only, you must use input/output baluns with proper impedance ratio.
In this way you'll have only one input port (you can set dc port instead of sine in line
RF, Microwave, Antennas and Optics :: 24.04.2004 18:15 :: Mazz :: Replies: 9 :: Views: 4351
Go to options at pss analysis panel and there is place called "Accuracy ....." and you can set the iteratio and the one below it to 5 and then try it.
Good Luck!
Analog Circuit Design :: 09.11.2004 15:15 :: nxing :: Replies: 4 :: Views: 1156
I'm simulating an LNA and pss fails on me. The simulator settings are default ones. I have heard for pss one has to change the tolerance settings. I don't know how and which setting. pls help. Here's the error:
Internal error found in spectre during periodic steady state analysis (...)
RF, Microwave, Antennas and Optics :: 08.11.2004 04:50 :: chinito :: Replies: 0 :: Views: 871
can someone tell me how to perform a pss,qpss,noise analysis in spectre.also i need help regarding phase noise simulation in spectre.please help if u have done this before.
regards
amarnath
Analog Circuit Design :: 23.04.2005 17:13 :: amarnath :: Replies: 13 :: Views: 3510
I'd like to ask one question too. I'm using pss to estimate IIP3 of IF filter, but as every people meet, the 3rd-order curve in low-power area isn't correct. Anyway, in my case, this incorrectness occured up to the high power area that make me very hard to find the 3 dB/dB slope of the curve, compare to pss+PAC simulation. I have to set the numbe
Analog IC Design and Layout :: 11.02.2005 22:42 :: Amuro :: Replies: 8 :: Views: 5101
You can using command :
spectrespp *.sp
directly, and spectre will create a file *.mdl to transform spice .measure and run, the rusult output file styled *.measure. But it seems just work for tran, ac, and dc analysis, not ready for pss and pac..(or there's newer version released?)
Added after 13 minutes:[/s
Analog IC Design and Layout :: 14.07.2005 11:22 :: intuition :: Replies: 14 :: Views: 8141
Why 100-500 harmonics?? Normally 10-20 harmonic numbers are enough whichever frequency you work on....( except mixers but also with them 100 is too much)
If it's so, I think fourier transformation in pss should mathemetically be wrong approximated.
But of course , it has a certain limit...
RF, Microwave, Antennas and Optics :: 16.05.2005 16:31 :: BigBoss :: Replies: 2 :: Views: 988
in pss, the beat frequency should be accuracy and also need a large harmonic sideband number. When you display the result make sure you look at the right harmonic for the fundament frequency. You can reference the manual : spectre RF user guide , there is a detail simulation case for LNA.
Hope it helps
RF, Microwave, Antennas and Optics :: 03.10.2005 18:17 :: pi331133 :: Replies: 1 :: Views: 541
yes, you can run pss and pnoise.
more example you can find the openbook of cadence: spectrerf
Analog Circuit Design :: 28.09.2005 04:23 :: sunking :: Replies: 6 :: Views: 3222
pss+pnoise approach is commonly used, especially for case like VCO design. However, sometimes it take days to find the correct convergence condition, and the result is meanful only if you cross-check it with actual test result.
Analog Circuit Design :: 21.03.2006 17:20 :: bluestatic :: Replies: 12 :: Views: 6774
pss analysis of spectre in oscillator mode is best suited for VCO simulations.
Analog Circuit Design :: 10.10.2006 10:40 :: gunturikishore :: Replies: 2 :: Views: 1146
PLL noise , is mainly the phase noise
the closed loop PLL has many transfer functions of noise , everyone depend on the source of the noise
1) reffernce PLL act as a low pass filter
2) filter PLL act as a low pass filter
3) VCO PLL act as high pass filter
to simulate the PLL phase noise , u can use any system level simu
Analog Circuit Design :: 18.10.2006 09:16 :: khouly :: Replies: 7 :: Views: 852
In hspice, save operating points into a ic, then load this ic and run ac analysis .
In spectre, do pss and pac analysis.
Analog Circuit Design :: 08.11.2006 05:38 :: xuel :: Replies: 6 :: Views: 993
Hi,
I'm simulating a vco using cadence IC5033. Have run trans analysis and the vco can oscillate well, and output log shows no warning. From the result of trans analysis, I set the tstab parameter in pss. But when running pss analysis, the warning "PM0: The bulk-drain junction current exceed 'imelt'. The (...)
Analog Circuit Design :: 20.04.2007 10:03 :: lijianheng :: Replies: 2 :: Views: 1728
Hi,
I'm simulating a vco using cadence IC5033. Have run trans analysis and the vco can oscillate well, and output log shows no warning. From the result of trans analysis, I set the tstab parameter in pss. But when running pss analysis, the warning "PM0: The bulk-drain junction current exceed 'imelt'. The (...)
Analog IC Design and Layout :: 20.04.2007 10:04 :: lijianheng :: Replies: 0 :: Views: 958
do pss and pnoise analysis.
in pnoise setting page, select "jitter" for noise type.
the result can be seen in direct plot -> main form.
Analog Circuit Design :: 24.10.2008 11:59 :: galilei :: Replies: 8 :: Views: 3825
Hi, Mazz
I know the filter is driven by the charge pump current. But my question is that when I use the 3rd order filter, the voltage in the two edge of R1 is not the same, and the voltage of the charge pump output is with much less dither than the voltage at the tune voltage node of the VCO.
Yestoday, I try to used the 2nd order filter, and beca
Analog Circuit Design :: 10.03.2009 11:21 :: gaom9 :: Replies: 31 :: Views: 4208
Hi all,
I've been trying to simulate a simple differential LC oscillator, the one that is explained in spectre pss tutorial. However, it gives me positive phase noise at low frequency offsets(~ +50dBc@10Hz), (it gives acceptable negative phase noises for high frequency offsets: -130dBc@1MHz though).
I thought it might be because it couldn't f
RF, Microwave, Antennas and Optics :: 31.03.2009 10:28 :: mhaghaed :: Replies: 6 :: Views: 1208
Hi,
I want to perform noise analysis in cadence but I haven't found any really relevant tutorial in the topic.
Could someone please send me a tutorial, or a link to such a document? I have already checked cadence sourcelink as well but it haven't returned anything serious.
So does somebody have experience/idea ab
Analog IC Design and Layout :: 28.07.2009 17:11 :: AdvaRes :: Replies: 2 :: Views: 1236
Hi,
you probably have the licenses/installation for spectre-rf. in our environment the pss analysis is just there. we are using ic5141 + mmsim61.
regards
hqqh
Software Problems, Hints and Reviews :: 18.08.2009 14:42 :: hqqh :: Replies: 1 :: Views: 453
it maybe need set a correct beat frequency for simulation, such as fclock/1.5Wrong.
Don't use a term of "beat", if you mean pss of Cadence spectre.
See "spectre -h pss", if you mean pss of Cadence spectre.
There is no "beat[/
Analog Circuit Design :: 21.08.2010 11:50 :: pancho_hideboo :: Replies: 4 :: Views: 1523
Dear all,
I am using spectre to design up conversion mixer. It is quadrature input and single output mixer. Could anyone teach me how could I simulate Noise Power Desnsity (dBm/Hz)?
Another question. My up-conversion mixer is quadrature input and single output. In the test-bench, I use two Ports to generate quadratu
RF, Microwave, Antennas and Optics :: 20.08.2010 13:02 :: BigBoss :: Replies: 1 :: Views: 651
You will use pss for PA's..
Or Harmonic Balance..
RF, Microwave, Antennas and Optics :: 03.12.2010 07:48 :: BigBoss :: Replies: 2 :: Views: 1151
Hi everyone,
I want to simulate the effect of mismatch and process variation on the system performance of my SAR Analog to Digital Converter. The system now is simply ideal system with only one transistor level block, the other blocks are written
in Verilog-A code in Cadence-spectre.
The easiest way to simulate the mismatch and process v
RF, Microwave, Antennas and Optics :: 21.02.2013 15:34 :: akkafrawy :: Replies: 0 :: Views: 137
Hi all,
I encountered something strange and I would to like to ask if it is only my problems or not. I just installed ic5.0 in redhat 8. Everything works fine until I try simulating pss. I simulate the "lnasimple" as provided in "rfExamples" and there is error message pop up, "Internal error in spectre........", at the end of the simulation.
Linux Software :: 31.10.2003 07:05 :: mesfet :: Replies: 9 :: Views: 4116
I encountered something strange and I hope someone can help me here.
I just installed ic5.0 in redhat 8. Everything works fine until I try simulating pss. I always get the following error, even for a very simple circuit which is run properly on IC50 installed on Solaris:
Internal error found in spectre during periodic steady state (...)
Software Problems, Hints and Reviews :: 15.02.2004 06:15 :: pengboy :: Replies: 7 :: Views: 1951
I encountered something strange and I hope someone can help me here.
I just installed ic5.0 in redhat 8. Everything works fine until I try simulating pss using spectre or SpectrS. I always get the following error, even for a very simple circuit which runs properly on IC50 installed on Solaris:
Internal error found in spectre during (...)
Linux Software :: 15.02.2004 06:19 :: pengboy :: Replies: 0 :: Views: 776
After a lot of replies, now maybe a brief history can help.
Cadence (spectre) comes from analog integrated world, with all the costraints and benefits: complex circuits, powerful GUI, powerful layout, and parasitic extractor; it has been brought to higher frequency world in time, correcting all the problems that comes with RF. It's now the STANDAR
RF, Microwave, Antennas and Optics :: 16.12.2004 18:43 :: Mazz :: Replies: 24 :: Views: 2935
Hi All,
I am using spectre to simulate switched capacitor type differential
opamp using pss and PAC for the AC reponse.
However, after the simulation there is an error:
No "VF" data for node "/OUTP"
No "VF" data for node "/OUTN"
when I want to display the waveform.
Do I miss some point or any setting need to display the waveform?
Plea
Analog Circuit Design :: 27.08.2004 09:08 :: Vitamin-C :: Replies: 1 :: Views: 855
Is it really? Could you tell me how can I use this in spectre? This is just a Verlog-A lanugage, how can I use it as Schematic Instances?
Also I want to simulate a pss analysis using this model. Do it have hidden-state problems?
Analog Circuit Design :: 28.01.2005 05:23 :: terryssw :: Replies: 7 :: Views: 3534
PXF analysis is intended to give an indication of different gain vs product indexes, while pss is the most accurate one.
For example you can use PXF to see if there is image rejection or if you want to know how large can be an unwanted output frequency out of the non linear circuit under evaluation.
With pss you ussually perform all (...)
RF, Microwave, Antennas and Optics :: 12.02.2005 13:01 :: Mazz :: Replies: 2 :: Views: 990
hi
we r having cadence licences and that too version we have spectre rf simulation facility.the problem is we r in the institute, we r not able to see online documentation .
regarding ....finding out s parameters,we have to specify the ports.let me say s11,for that what port information i have to give for the 2nd port...
pss a
RF, Microwave, Antennas and Optics :: 09.03.2005 16:10 :: balu304 :: Replies: 3 :: Views: 3061
Hi there,
This question is repeated here, since I haven't found the specific answer in this forum yet.
Can I use common ways (DC, AC, noise) to simulate OTA with SC CMFB, then later go to SC amplifier? I found I couldn't. I couldn't get the desired results. Then in this forum, I found I need to use pss and PNOISE. I am a student and have no
Analog IC Design and Layout :: 28.06.2005 04:47 :: ethan :: Replies: 4 :: Views: 2510
Hi
In spectre you have the Noise analyses - you have to place a port on the input and sweep a variable (probably frequency in your case).
You can also do this by runing a pss analyses - this is more complex and you can apply 2 tones on the input.
You should be able to find tutorials and examples in Cadence Help!
Good luck!
Analog IC Design and Layout :: 09.09.2005 09:05 :: mircea :: Replies: 10 :: Views: 932
Hi , I have designed an oscillator with 2.4G oscillation frequency. I am new to the phase noise simulation in spectre. I followed the pss and pnoise set to simulate phase noise, it gives me error when running pss, complaining something like "arithmetic exception error". Can i know why?? I have tried by changing tstab value, but still has (...)
Analog Circuit Design :: 29.09.2005 20:24 :: us1710 :: Replies: 8 :: Views: 1023
Hi,
I am trying to simulate Mixer with Qpss analysis to view the harmonics and their distortions. Typically I was doing it with pss and it is taking long time for simulation. As Qpss has less time to simulate I am trying tht but encountered a prblem as error which spectre reports as follows.
"Error (...)
Analog IC Design and Layout :: 07.02.2006 03:49 :: gunturikishore :: Replies: 3 :: Views: 1270
hi, all
SC CMFB used in my design, but you know it can not performe ac analysis. do you have good solution besides simulation with spectre. Thanks
Hi,
If you use candence IC deisgn tools, you can use spectreRF to simulate the ac analysis. First step is to do pss analysis and then do (...)
Analog Circuit Design :: 22.02.2006 04:02 :: sixth :: Replies: 11 :: Views: 1357
I suggest to simulate the noise with cadence spectre RF, instead of HSPICE.
Because PLL consists of VCO, which is a non-linear component. Frequency divider is also non-linear. For non-linear circuit, SPICE doesn't simulate well. Instead, you should run spectre .pnoise analyse.
I know that SPICE cannot predict noise dire
Analog Circuit Design :: 03.03.2006 10:45 :: cmos_dude :: Replies: 8 :: Views: 1492
In Cadence 5.141, directly PAE may be used in pss analysis.Otherwise, Each input and output should have curent probe to measure the currents and of course with node voltages PAE and other important parameters can be simulated.
But better way is to ADS or RFDE, because in these simulators, to simulate some important parameters is easier by inse
RF, Microwave, Antennas and Optics :: 23.03.2006 11:42 :: BigBoss :: Replies: 1 :: Views: 1051
Dear All,
I am simulating LNA and other RF components in spectre for the 1st time.
Is there any good document where I can learn more on pss,PAC, Noise analysis using spectre, like what basically pss, PAC means.
Very basic on these topics.
Thanks in adavance.
Prakash
RF, Microwave, Antennas and Optics :: 20.04.2006 20:29 :: pthoppay :: Replies: 1 :: Views: 1623
U need to do it through the Sweep option (Present at the end of pss analysis form)in the pss analysis if you want exact answers. Use port instance for your input signal from analogLib provided....
Use the power in dB option available in the input port instance.....give a variable there and specify tht varible in the swept (...)
Analog IC Design and Layout :: 12.05.2006 11:19 :: gunturikishore :: Replies: 5 :: Views: 810
are you means convert Hspice model to spectre?
if yes you can try this in spectre :
analog design enviroment --> setup --> enviroment --> userCmdLineOption : +csfe
but i think spctre using hspice model has problem in transient analysis.........
and hard conservation in pss analysis.
Software Problems, Hints and Reviews :: 31.05.2006 00:33 :: chungming :: Replies: 3 :: Views: 3991
Last searching phrases:
icd2 potyo2 | ads modulation | wave propagation | emitter degeneration | sar sar | charge and injection | car radio frequency | jtag using arm | radar simulink | arm coding
icd2 potyo2 | ads modulation | wave propagation | emitter degeneration | sar sar | charge and injection | car radio frequency | jtag using arm | radar simulink | arm coding