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I assume 1GHz is the unity gain bandwidth of your opamp. Can you tell me how much the load capacitance is? A compensated opamp has a unity gain bandwidth of about (gm/CL)*0.5, where gm is the transconductance of the last stage.
total harmonic distortion explained
I haven't tried out the component fourier2ch. There is more information in the cadence document. Try to use
spectre -h fourier
to get the detailed description.
There is also a very good reference in the website of Cadence. It may help you to understand...
total harmonic distorsion
An easy to determine the THD/SFDR or whatever, is to make use of the component fourier/fourier2ch. These two components are located in analogLib and they are specific to the cadence simulator spectre. If you place them in a schematic and run a transient anaysis, you...
pd-question
Maybe you should measure the jitter of the VCO at locked status to decide whether the loss of data is attributed the phase noise of VCO.
You should definitively simulate the phase noise of the VCO. You can use PSS option of the simulator SpectreRF for fast buggeting of the phase...
It is unnecessary to define mesh size of a dielectric layer proportional to the seperation of metal traces of a spiral inductor, 'cause that will make the simulator divide the whole layer into equally small tetrahedras, and this will waste you a lot of simulation time provided your computer is...
Re: Wihich software is better for simulating slot spiral ant
You can try HFSS from Ansoft. According to my experiences, this simulator is faster than Microwave Studio, which enables you obtain enough accurate result within acceptable time and with intermediate hardware resources.
Re: differential equations
Differential equation whose solution satifies the existence and uniqueness can be solved by using Lie-algebra. The problem then is to find the suitable infinitesimal transformation which can be admitted by the equation itself. More information in the classic book...
how to install cadence in linux
After Cadence IC5.0.33 is installed under RedHat9, the file manager can not start properly due to the bug of RH9. This problem will be solved by updating glibc.
1. download the update package from web, the required the packages are,
glibc-2.3.2-27.9.7.i386.rpm...
how to install cadence
How to install Cadence IC5.0.33 under Linux RedHat9
This is already a topic which has been discussed for year. With no doubt, Redhat7.2 is a classic and wide spreaded Linux distribution version, therefore it is compatible with most eda software. However Redhat7.2 is too...
Using CMOS current mirror can also achieve such accuracy. At least a current output unit of a few pico Ampere is possible, whereby the MOSFET operates probably in the sub-threshold regime.
pspice 9.1 simullation
Hi pisoiu,
To solve your problem, follow the steps below:
1. Add a part which names "PARAM" to your schematics. This part is located in the library "special.olb" under the folder of "...\capture\library\pspice".
2. Double click the PARAM component; add a new property to...
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