Difference between revisions of "PLL Ref Out"

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== Example Flowgraph ==
 
== Example Flowgraph ==
  
Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
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This flowgraph implements a Broadcast FM stereo receiver using basic blocks. The PLL captures the 19kHz pilot carrier.
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[[File:USRP_FM_stereo_fg.png|644px]]
  
 
== Source Files ==
 
== Source Files ==

Latest revision as of 15:03, 22 June 2020

Implements a PLL which locks to the input frequency and outputs a carrier.

This PLL locks onto a [possibly noisy] reference carrier on the input and outputs a clean version which is phase and frequency aligned to it.

Parameters[edit]

(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[edit]

This flowgraph implements a Broadcast FM stereo receiver using basic blocks. The PLL captures the 19kHz pilot carrier.

USRP FM stereo fg.png

Source Files[edit]

C++ files
TODO
Header files
TODO
Public header files
TODO
Block definition
TODO