video splitter

[Joe G (Home)]

Hi All,

I have 1 composite video source and I would like to split in to 2 inputs

Can you recommend some video splitter ccts like emitter followers (buffers)
or some video buffer splitter chips.

Regards
Joseph

 

[Larry Brasfield]

"Joe G (Home)" <joe.g@optusnet.com.au> wrote in message
news:4272ebec$0$8125$afc38c87@news.optusnet.com.au...

Hi All,
Hi.
I have 1 composite video source and I would like to split in to 2 inputs

Can you recommend some video splitter ccts like emitter followers (buffers) or some video buffer splitter chips.

Analog devices sells something that can do that for $2:
http://www.analog.com/en/prod/0,,759_775_AD8074%2C00.html

--
--Larry Brasfield
email: donotspam_larry_brasfield@hotmail.com
Above views may belong only to me.

 

[Mac]

On Sat, 30 Apr 2005 12:23:45 +1000, Joe G (Home) wrote:

Hi All,

I have 1 composite video source and I would like to split in to 2 inputs

Can you recommend some video splitter ccts like emitter followers (buffers)
or some video buffer splitter chips.

Regards
Joseph

Use courier or other constant-width font for this ASCII-art schematic:


|\
| \ 75
in-------+--------+---|+ \_________/\/\/\----out1
| | |- / |
| | | / |
| | |/ |
| | |
| +--+/\/\/\---+
| | R
| \
| /
| \ R
| /
| |
| GND
|
| |\
| | \ 75
+--------+---|+ \_________/\/\/\----out2
| | |- / |
\ | | / |
/ 75 | |/ |
\ | |
/ +--+/\/\/\---+
| | R
GND \
/
\ R
/
|
GND

The op-amp could be, for example, the LT1364CN8, which is in-stock at
digikey. Numerous details are not shown. You will need to have bypass
capacitors, and a +/-5 V power supply. I don't know that this is the best
or cheapest way to do this. This op-amp is just the first one I found at
digikey that looked like it would do the job.

Read the datasheet for the full details.

http://www.linear-tech.com/pc/downloadDocument.do?navId=H0,C1,C1154,C1009,C1022,P1106,D2342

Or just go to www.linear-tech.com and search for lt1364 if the above URL
doesn't work for you.

Have fun.

--Mac

 

[John Woodgate]

I read in sci.electronics.design that Mac <foo@bar.net> wrote (in
<pan.2005.05.02.00.14.12.342193@bar.net&gt about 'video splitter', on
Mon, 2 May 2005:

Use courier or other constant-width font for this ASCII-art schematic:

.... which is seriously in error. The feedback is positive and the
inverting input of each op-amp is not connected to anything.
--
Regards, John Woodgate, OOO - Own Opinions Only.
There are two sides to every question, except
'What is a Moebius strip?'
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

 

[Mac]

On Mon, 02 May 2005 00:14:13 +0000, Mac wrote:

On Sat, 30 Apr 2005 12:23:45 +1000, Joe G (Home) wrote:

Hi All,

I have 1 composite video source and I would like to split in to 2 inputs

Can you recommend some video splitter ccts like emitter followers (buffers)
or some video buffer splitter chips.

Regards
Joseph

Use courier or other constant-width font for this ASCII-art schematic:

Which, as John Woodgate pointed out elsewhere, is seriously in error. I've
fixed the one below.


|\
| \ 75
in-------+------------|+ \_________/\/\/\----out1
| +---|- / |
| | | / |
| | |/ |
| | |
| +--+/\/\/\---+
| | R
| \
| /
| \ R
| /
| |
| GND
|
| |\
| | \ 75
+------------|+ \_________/\/\/\----out2
| +---|- / |
\ | | / |
/ 75 | |/ |
\ | |
/ +--+/\/\/\---+
| | R
GND \
/
\ R
/
|
GND

My apologies (especially to the OP) for posting such a fundamentally
flawed schematic.

--Mac

 

[Mac]

On Mon, 02 May 2005 09:57:57 +0100, John Woodgate wrote:

I read in sci.electronics.design that Mac <foo@bar.net> wrote (in
pan.2005.05.02.00.14.12.342193@bar.net&gt about 'video splitter', on
Mon, 2 May 2005:

Use courier or other constant-width font for this ASCII-art schematic:


... which is seriously in error. The feedback is positive and the
inverting input of each op-amp is not connected to anything.

Thanks. I fixed it (I hope!) elsewhere in the thread.

--Mac