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Manipulation of the non-linearity expressions found in RF Circuits using Sympy.

Symbolic mathematics

Theoretical analysis

Fundamentals

Sympy

RF

In this entry I explore Sympy as symbolic manipulation tool for studing the non-linear behavior of RF circuits.

Effects of a non-linear PFD-CP in the output spectrum of a fractional PLL

Simulation

Theoretical analysis

Fundamentals

PLL

This notebook shows how to assets the effects of the non-linear components of a phase detector in the phase noise characteristic of a fractional-N PLL. To do the computation we will use Python and the plldesigner toolbox.

\(\Sigma-\Delta\)-modulator phase noise in fractional-N PLL’s

Theoretical analysis

Fundamentals

PLLS

Sigma-Delta

Fractional-N

This is a notebook explaining the fundamentals of Sigma-Delta modulators as used in fractional-N PLLs. It compares the theoretical analysis with a implementation developed in Python.

A blog related with phase-locked loops phase noise and Python.

news

About a year ago, I came across Jake VanderPlas’s excellent Python blog, Pythonic Perambulations. Since then, I’ve been considering writing a blog about PLL (Phase-Locked…