Video Sync Seperator Chip, LM1881/GS1881/GS4881/GS4981

SAM · Post by **SAM** » Mon Sep 19, 2005 5:33 am

I have recently purchased an arcade mechine monitor. I can connect my MegaDrive, Saturn, Dreamcast, Supergun to it via RGB successfully.

But I found problem with my PS1/PS2.

After some research, I figure out that the PS1/PS2 only does not got direct composit sync output.

I need to extract the composit sync singal from the composit vedion output.

To do so I would need to build a simple circuit using a Video Sync Seperator Chip as follow.

http://www.gamesx.com/misctech/lm1881.htm

The problem is I cannot found any of these chips LM1881/GS1881/GS4881/GS4981 at the local stores. (Its stucks to be living on a tiny island...

)

Can any of you provide me with IC numbers of identical chips from different vendors? Or got some spare ones to sell?

Post by **Dave_K.** » Mon Sep 19, 2005 6:54 am

http://www.digikey.com/scripts/DkSearch ... 34&Site=US

or if its easier for you to order from Hong Kong try below link

http://catalog.digikey.com/scripts/part ... LM1881N-ND

SAM · Post by **SAM** » Fri Sep 23, 2005 5:19 am

Thank you Dave_K. I was able to found it in a local radio store.

I can now connect my PS1/PS2 to my new Acrade monitor.

Wow... the picture is wonderful.

Gunbird 2 inprove a lot,
while mushihimesama doesn't improve much.
Screens of ESPgaluda and DDP DOJ just look like the same thing in the acrade.

*******************************************************

I never imegin that the Saturn can displays such a betiful pictures (connecting it to the acrade monitor). I finally realize how bad the vedio encoding chips within the Saturn are. I begin to wonder, if I built an external vedio encoder (RGB -> Component or S-Vedio) and do the vedio encoding myself, would be picture of Saturn improves on my TV?

Any experiance with this idea? Anyone done it before?