Why AC coupled XO?

A 8 · 25th March 2003, 06:39 PM

I see most of you guys use ac coupled output on your XO, is this only to remove dc offsets between XO and receiver or are there other reasons?

I assume it would be difficult getting a nice square wave through a cap!

jean-paul · 25th March 2003, 07:59 PM

Good question, I don't use a cap for the reason you gave and wonder too why some use it

tiroth · 25th March 2003, 08:17 PM

Some people may use the coupling cap as a free pole.

Tube_Dude · 25th March 2003, 08:24 PM

Quote:

I assume it would be difficult getting a nice square wave through a cap!

Yes it is!!..But much more difficult is getting a nice square wave reproduced by a loudspeaker

jean-paul · 25th March 2003, 08:27 PM

A digital loudspeaker coupled via a cap to a XO ?

A 8 · 25th March 2003, 08:46 PM

Tube_Dude...who wants to feed the speakers a XO?

Tube_Dude · 25th March 2003, 08:54 PM

Quote:

Tube_Dude...who wants to feed the speakers a XO?

My coments are about the realy need of a absolut square wave reproduction....as any loudspeker can't reproduce them acurately!!

Or the XO is not for music reproduction???

jean-paul · 25th March 2003, 08:57 PM

We are talking digital electronics here and in digital electronics a square wave is important. The question is if a XO ( digital clock module ) should be coupled capacitively or not.

XO's are precision low jitter clock modules for use in cd-players etc.

Tube_Dude · 25th March 2003, 09:01 PM

Sorry!!!

I was talking about a active crossover.(XO)

jean-paul · 25th March 2003, 09:03 PM

Sometimes mistakes can be funny

25th March 2003, 06:39 PM	#1
A 8 diyAudio Member Join Date: Mar 2003 Location: Gothenburg	Why AC coupled XO? I see most of you guys use ac coupled output on your XO, is this only to remove dc offsets between XO and receiver or are there other reasons? I assume it would be difficult getting a nice square wave through a cap!

25th March 2003, 07:59 PM	#2
jean-paul diyAudio Moderator Emeritus Join Date: Sep 2002 Location: The Netherlands	Good question, I don't use a cap for the reason you gave and wonder too why some use it __________________ It's only audio

25th March 2003, 08:27 PM	#5
jean-paul diyAudio Moderator Emeritus Join Date: Sep 2002 Location: The Netherlands	A digital loudspeaker coupled via a cap to a XO ? __________________ It's only audio

25th March 2003, 08:57 PM	#8
jean-paul diyAudio Moderator Emeritus Join Date: Sep 2002 Location: The Netherlands	We are talking digital electronics here and in digital electronics a square wave is important. The question is if a XO ( digital clock module ) should be coupled capacitively or not. XO's are precision low jitter clock modules for use in cd-players etc. __________________ It's only audio

25th March 2003, 09:01 PM	#9
Tube_Dude diyAudio Member Join Date: Mar 2002 Location: Aveiro-Portugal	My mistake!!! Sorry!!! I was talking about a active crossover.(XO) __________________ Jorge


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25th March 2003, 08:17 PM	#3
tiroth diyAudio Member Join Date: Dec 2001 Location: Pittsburgh, PA, USA	Some people may use the coupling cap as a free pole.

25th March 2003, 08:46 PM	#6
A 8 diyAudio Member Join Date: Mar 2003 Location: Gothenburg	Tube_Dude...who wants to feed the speakers a XO?

25th March 2003, 09:03 PM	#10
jean-paul diyAudio Moderator Emeritus Join Date: Sep 2002 Location: The Netherlands	Sometimes mistakes can be funny __________________ It's only audio

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