Jump to content
Electronics-Lab.com Community

Working of a PLL


Recommended Posts

  • 1 month later...

A PLL has it's beginnings in the ideal situation of zero time difference. Although there is a feedback loop, there should be practically zero time difference. The voltage at the VCO is what's important. The signal takes the frequency up and the correction voltage from the phase comparator pulls that frequency somewhere close to the reference oscillator. Somewhere close is the key. The margin of error directly affects the ability to modulate. If it were perfect, then the output of the VCO would never change and your left with one frequency. But since there is a sizeable error, you have a change in frequency.

Link to comment
Share on other sites

  • 8 months later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...