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IIP3 & noise figure in Aplac

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hr_rezaee

hr_rezaee

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How I can calculate IIP3 & noise figure & 1dB com. with Aplac
I designed gilbert cell mixer with mosfet (BSIM3 model) and i want to quickly compute main parameter of mixer with aplac v7.6.
any one can help me?
 

Hi,

You can download the demo version of the APLAC 8.0, it contains a good examples and documentation about mixer parameter measurement.

Another option is to use the definitions, look at the Razavi's book, or read the paper "Nonlinearity Test for a Fully Integrated Direct-conversion Receiver" (microwave Journal, october 2004) at mwjournal.com. With a simple waveform generator and spectrum analyzer you can meausure.
 

hi
thank you
but aplac compute iip3 and NF of a system (not circuit) .
i want to know how i can define my sircuit as system.
can you send me "Nonlinearity test for a fully integrated direct-conversion receiver" ?
 

Hi, I'll send you the paper in a private message.

The chapter 5 of the "APLAC RF Design Tool. System Simulation Manual I. Formula Base Simulation", can be useful too.
 

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