Aug 4, 2004 #1 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
Aug 4, 2004 #2 B brmadhukar Advanced Member level 3 Joined Jun 21, 2002 Messages 839 Helped 42 Reputation 84 Reaction score 11 Trophy points 1,298 Location India Activity points 6,783 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 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
Aug 9, 2004 #3 D dumbfrog Full Member level 3 Joined Jul 17, 2004 Messages 182 Helped 9 Reputation 18 Reaction score 5 Trophy points 1,298 Activity points 1,360 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: 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.
Aug 16, 2004 #4 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 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: 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?
Aug 16, 2004 #5 D DarkJedi Full Member level 2 Joined May 25, 2004 Messages 145 Helped 9 Reputation 18 Reaction score 1 Trophy points 1,298 Location Lima, Perú Activity points 1,722 Re: comparator Why dont u just use a digital pll??? i think is the easier way to comparate frecuencies.
Re: comparator Why dont u just use a digital pll??? i think is the easier way to comparate frecuencies.
Aug 16, 2004 #6 T trip Newbie level 4 Joined Jul 18, 2004 Messages 5 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 14 Re: comparator use cmos chip CD4046... check out Datasheet
Aug 22, 2004 #7 C claint Member level 5 Joined May 21, 2004 Messages 94 Helped 5 Reputation 10 Reaction score 2 Trophy points 1,288 Activity points 762 Re: comparator use xor logic, or counter