Convert S-Video to composite?

Hello togehter,

I tried to get that composite working out of a s-video signal by putting the C and Y together, but it doesnt really work. I have found some documentation in the internet, they write: "Usually the chroma line (C) is passed through a capacitor and tied to the luma line (Y) after it is passed through a resistor. Usually 470 pF and 100 ohms." - but I only got some stripes on the TV, I also tried a bigger capacitor, but doesnt work. may anyone help me with this problem, or maybe give me some hint where to search to error?

thanks...

I've seen s-video -> composite cables packed with PC videocards with s-video out, I'm wondering if just using a cable like that would work?

yes, perhaps, I should search and get such a cable.

anyway: it'll be interesting to figure out, how that conversion works...

This works well for me

http://www.epanorama.net/circuits/svideo2cvideo.html

Amano Jacu said:

I've seen s-video -> composite cables packed with PC videocards with s-video out, I'm wondering if just using a cable like that would work?

Click to expand...

I have one of those cables that came with my pc, and it's composite output looks like ass. Big ugly hairy gorilla ass.

(svid out looks sweet - 52 inch pac man, baby!)

it worked, thanks ttooddddyy,
but quality is the same, like the direct composite outcome form the chip,
->yes, like hairy gorilla ass...
I guess, I'll better only work with RGB TVs in future.

It will be the same quality.

Its difficult to make a silk purse out of a sows arse

The problem when you combine luma and chroma signals is that one will interfere with the other.

Video signals have frequencies from 0 Hz or DC to over 5 MHz.

The chroma sub carrier frequencies are 4.43 MHz(PAL) and 3.58 MHz(NTSC) , so they are clearly going to clash. To minimise this a band stop filter or trap can be used.

Good info on the topic here.
http://joule.bu.edu/~hazen/DataSheets/ColorVideo/Composite Video Separation Techniques.pdf

thank you, I will read a little,
if I get better results, then I'm going to let you know...

Here is one.
http://www.radioshack.com/product.a..._name=CTLG_003_010_003_005&product_id=15-1238