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320 Threads found on Cadence Noise
now, i am doing a project about a wideband low noise amplifier. but i haven't any tools,i only know that cadence'spectre can doing this ,so is there any others can doing this ,i have hspice in my pc ,so i ask whether hspice can doing this .and how to set the parameter to simulate the LNA.
I design a Ring VCO and use cadence pss pnosie simulate its phase noise. There is a strange simulation result. The phase noise curve is not always down with -20dBc /dec. From 100KHz the curve become a straight line . See belowing pic. I don't
I have made a 3rd order complex filter , when performing noise analysis using cadence , i put noise sources at both the inputs of I and Q channel , and saw the output noise at the I or Q channel , it was 45nV/sqrt(hz) . when i measured the input referred noise at the I or Q channel , it was about (...)
hi all i am aboslutely new to rf design using design. can someone help me with schematics to simulate the gain vs collector current, the noise figure versus collector current and iip3 versus collector current for a bjt in cadence? Also a basic circuit to plot the I-V Characteristics of bipolar as required in cadence. Also how can i plot (...)
I have this problem so, I simulated my ring oscillator by cadence and ADS but both results are same. I think it is because of software model and you should ignore it.
sir can we pls send me any tutorial of cadence spectre to simulate jitter for the pll. My emaid is Regards, bibhu prasad panda
How to measure input referred noise of an OTA in cadence. Thanks in advance.
i want to do noise analysis of a circuit, how can i do it in cadence ADE, references are appreciated ,help me. Thanks in advance.
I am designing a Delta sigma ADC, so i need some guidence for designing it in simulink, and i have to do circuit design as well in 0.18u technology in cadence. guide me please. Thanks in advance!
$CDS_TOP_DIR is the root directory of your cadence installation.
If you designed in cadence, read Spectre documentation.
I can't find any cadence tutorials that discuss these topics : --> noise simulation --> Process Corners simulation --> How to plot gain against Id and stuff like that such as gm/id
what can I do to design this LNA?? Where can I find the rules to design this LNA?? In enclosure there is the scheme of LNA that I have to consider. Thenk you Hello macg84, seems you have already quite a good schematic template to start with. I'd suggest you study the cadence SpectreRF LNA workshop first (you can find i
Hello All, I am trying to analyze phase noise for a design involving cross-coupled LC oscillator. I am able to get the PSS working, however, the pnoise analysis throws up a strange warning. I have attached the simulator log file. I tried implementing the suggestion posted at
Hi, all. I'm working in cadence IC 6.1. In my project I need to set noise spectrum to an input of my device. Did you know, is it possible or not? And if it possible, how can I do this( maybe, special signal generator or some option in analysis )? Thanks in advance.
Hi guys, I need to calculate the peak to peak jitter, Absolute and Cycle to cycle jitter of a VCO output in cadence spectre.. has any one done this before or any ideas. I am able to setup a calculator variable and sweep the edge number and plot graph of the crossover points vs edge number..... but i cannot get graph to be saved as CSV for p
When I simulate the noise performance of an amplifier using cadence Spectre, I can get the values of output noise voltage (Vn,out) and noise figure (NF). But I use the formula NF=square(Vn,out/A)*1/(4kTRs) (A is the voltage gain.) the result of NF is different with the simulation result. Why?
Do you know how to measure the noise current of a transistor in saturation? I bias the mos in sat region then how to specify/manage the probes in noise analysis.
Hello people, I am having some trouble simulating the NF of a mixer I designed. I am trying to simulate its performance using spectre Periodic noise Figure analysis (combined with PSS of course), in the ways described both in cadence's app note ( ) and in a tutorial from a Sweden University
Hi all Can anyone give me an existing LDO design which can be run in cadence? Thanks Added after 1 hours 59 minutes: Hi all Can anyone give me an existing LDO design which can be run in cadence? Thanks I design a LDO myself, but the output noise is pretty high, about 1