Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

IC comparator for two digital frequency sources

Status
Not open for further replies.
L

louislu

Member level 1
Joined
Apr 5, 2004
Messages
40
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
426
comparator

hi...Is there any comparator IC used to compare 2 digital frequency source...thanks
 

Re: comparator

Hi what should be the output?
Just to compare frequencies you may use counters and their difference sampled at same instance will compare them.
B R M
 

Re: comparator

a xor, pfd, etc just a suggestion, don't know what u want for the output

ie. if u want some voltage/current output, try to build something like a sub-pll block, a phase detector + low pass filter.
 

Re:

hi...can i use "push acc" to continuously store data into RAM?in a loop application.fist i assign the wanted RAM location into stack pointer,then store data in sequence by using push acc..but never pop them out...is it k by doing that?
 

Re: comparator

Why dont u just use a digital pll??? i think is the easier way to comparate frecuencies.
 

Re: comparator

use cmos chip CD4046... check out Datasheet
 

Re: comparator

use xor logic, or counter
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top