clock generator and synthesizer

J

jason

Guest
Hello All


Anyone can technically explain the differences between a clock
generator and clock synthesizer?


I want to do a project on clock generator using PLL. But I know almost
all the sources I found is PLL-based clock synthesizer.
Kindly share with me how to differentiate them
Thank you all


best rgds
Jason
 
"jason" <cheanglong@gmail.com> wrote in message
news:1123030321.038828.156900@g44g2000cwa.googlegroups.com...
Hello All


Anyone can technically explain the differences between a clock
generator and clock synthesizer?


I want to do a project on clock generator using PLL. But I know almost
all the sources I found is PLL-based clock synthesizer.
Kindly share with me how to differentiate them
Thank you all
Click to expand...

It seems to me that a synthesizer is producing its output from a higher or
lower
frequency source. A clock generator may simply be a buffered oscillator
output.
This kind of hair splitting seems rather unimportant, why do you ask?
 
Hi Lord

Thank you for the answer.
I am given a project to simulate a clock generator. But my lecturer
mentioned to me I must use a clock generator instead of a clock
synthesizer.
I do not know what does it mean.
I am hoping I can get more advice from this group before I ask my
lecturer for more details.
Can you give me some important point that I can ask my lecturer in
order to know more of what a clock generator is different from clock
synthesizer to avoid getting the wrong circuit?

PLL based clock generator has a phase detector, Low pass filter, cmos
charge pump and a buffer? Does it come with a frequency divider?
How about PLL based clock synthesizer?

Kindly enlighthen
Thank you so much

best rgds

Jason
 
On Wed, 03 Aug 2005 00:00:40 -0700, jason wrote:

Hi Lord

Thank you for the answer.
I am given a project to simulate a clock generator. But my lecturer
mentioned to me I must use a clock generator instead of a clock
synthesizer.
I do not know what does it mean.
I am hoping I can get more advice from this group before I ask my
lecturer for more details.
Click to expand...
The way you're _supposed_ to do it is to ask the lecturer for the
details if they're not clear to you. His job is to make you
understand, and if he can't, or won't, answer your questions,
then he is simply not doing his job. If you don't bother to
ask, then you're not doing your job as a student.

Nobody here can have any better idea of what your lecturer wants
than he does, so we'd be making stuff up.

Go ask the teacher.

Good Luck!
Rich



Can you give me some important point that I can ask my lecturer in
order to know more of what a clock generator is different from clock
synthesizer to avoid getting the wrong circuit?

PLL based clock generator has a phase detector, Low pass filter, cmos
charge pump and a buffer? Does it come with a frequency divider?
How about PLL based clock synthesizer?

Kindly enlighthen
Thank you so much

best rgds

Jason
Click to expand...
 
Thank you Rich!
:)

Well said
I look forard to get the exact goal so I can work on it and come back
here for discussions
Cheers

Jason
 
On Sat, 06 Aug 2005 19:47:24 -0700, jason wrote:

Thank you Rich!
:)

Well said
I look forard to get the exact goal so I can work on it and come back
here for discussions
Cheers
Click to expand...
Doing just that might be the most valuable part of your education -
that is, learning to pump for details until you get a crystal-clear
understanding of the task at hand. Well, at least a clear
description. :)

Good Luck!
Rich
 
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