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Cdence PSS+PAC analyses
Hello,
I have to evaluate the input impedence of a time variant device, to make this i used PSS+PAC, after the simulation in direct plot with pac analyses i can plot the current or the voltage, but i have to plot the impedence...i thought to use calculator and the...
time variant impedence
Hello,
I must evaluate the value of time variant impedence from the red line shown in the attached file. The circuit is a passive mixer and I read that this circuit can be used as filter if we put a passive filter on the output. But it must be safe so I have to evaluate...
Re: differential output low noise amplifier designed with ca
To misure the output caracteristic of a LNA in cadence we can use Spectre and sp analysis, hence choose sp anlysis, then you have to choose the input and output port of LNA ande the frequency range for the correct analysis and then...
To design the differntia LNA :
1) The firs step is to define the optimal width of the input trasconductor
Wopt=1/(3*ω*L*Cox*Rs)>>>>where ω=2*π*f
L=length of Mosfet commonly is the minimum length
Cox=oxid capacitance
Rs=input resistence
2)We have to copute the parastic capacotance of...
vccs cadence
Sorry but i don't understand some parameter in the vccs...i want use this generator to replace the input mosfet, this mosfet have a trasconductance of 16ms, but how do i have to choose the minimum and the maximum current in this device? What is the function of the parameter...
RC filter
Hello at all,
In attached there is the schematic of a gielbert cell mixer, in this schematic there are two load resistor of 500 Ohm, i would replace this load resistor with a filter RC. The out signal of this mixer is an IF signal at 200MHz, so i would a filter RC that can attenuate...
vccs in cadence
Hello at all,
sorry the troubele but I have a problem, i want replace the input trasconductor stage in mixer gilbert cell with two ideal elemnts vccs. I want that this vccs has a gm of 16mS. I attached two schematic, the first is the circuit with input trasconductor with...
Hello at all,
Maybe thie question will be very simple but i can't make. Thare is someone that can explain how can import a schematic and a graph results from cadence to word???
Thank you very much
Re: Passive Mixer
Yes your words are true, but i wrote this request on passive mixer ( CMOS tec) becouse i didn't find what i was looking for, and I thought that there could be someone with some experience on the subject which could give me the right advice, books or something else... sorry
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