PLL Frequency Detector

Implements a PLL which locks to the input frequency and outputs an estimate of that frequency. Useful for FM Demod.

This PLL locks onto a [possibly noisy] reference carrier on the input and outputs an estimate of that frequency in radians per sample

Parameters

(R): Run-time adjustable

Loop bandwidth (R)

The loop bandwidth determines the lock range and should be set around pi/200 2pi/100.

Max freq

Maximum frequency of the carrier in radians per sample

Min freq

Minimum frequency of the carrier in radians per sample

Example Flowgraph

PLL Freq Det can be used to detect the frequency of a (noisy) single tone.

This minimal demo does nothing than allow the user to adjust a Signal Source's frequency, and then estimate the same.

Source Files

C++ files

TODO

Header files

TODO

Public header files

TODO

Block definition

TODO