Re: Resources regarding Phase Locked Loops?

Michael wrote:

Hi - I'm going to need to build a PLL circuit that can compare two
signals in the MHz range and find the phase difference between the
two. One will be very nice and clean while the other will be (I
suspect) quite noisy.I have never, ever done anything with PLLs. My
coursework at my uni (I am a senior EE, graduating in May) has not
covered PLLs at all. I don't think the term has ever even been
mentioned. I know about them from outside research.


Has never been mentioned? Ouch. What university was that?


Anyways - can anybody point me towards good resources regarding
designing such a circuit?


If you've never done a PLL I suggest to get a copy of the ARRL Handbook. Mine are older but PLL is handled in there. If this is for a mass product and it's on a tight schedule get consulting help.

I think Analog Devices has some good app notes about the topic as well. So did Philips but then they messed up their web site.

--
Regards, Joerg

http://www.analogconsultants.com
.

Relevant Pages

  • Re: Resources regarding Phase Locked Loops?
    ... signals in the MHz range and find the phase difference between the ... One will be very nice and clean while the other will be (I ... ever done anything with PLLs. ...
    (sci.electronics.design)
  • Re: Resources regarding Phase Locked Loops?
    ... Since the OP wants to find the phase difference of two input signals maybe two PLLs wouldn't be such a bad idea. ... Multiplying the signal first and LPFing it after is just the reversing the operations ...
    (sci.electronics.design)
  • Resources regarding Phase Locked Loops?
    ... Hi - I'm going to need to build a PLL circuit that can compare two ... signals in the MHz range and find the phase difference between the ... ever done anything with PLLs. ...
    (sci.electronics.design)
  • Re: Resources regarding Phase Locked Loops?
    ... How does a second signal fit in, two PLLs? ... Since the OP wants to find the phase difference of two input signals (one ... clean, one noisy) maybe two PLLs wouldn't be such a bad idea. ...
    (sci.electronics.design)
  • Re: Resources regarding Phase Locked Loops?
    ... How does a second signal fit in, two PLLs? ... Since the OP wants to find the phase difference of two input signals (one ... the operations (first translate your frequency, then LPF it). ...
    (sci.electronics.design)