Easy SNES/SFC YUV component video!

[Ace]

I got an e-mail back from UTSource and they're going to check the price of the chip. I should get a quote within a day or so.

By the way, if anyone wants to build this converter on an etched PCB, I'm going to make a PCB layout which I will use should I decide to sell some pre-made converters (and I am REALLY tempted to do this).

[ApolloBoy]

I'm going to make a PCB layout which I will use should I decide to sell some pre-made converters (and I am REALLY tempted to do this).

You really should, I think there's some real money to be had if you actually put out something like this. Internal component encoders like the JROK and NeoBitz tend to be expensive and I'm not even sure if they're in stock these days.

[lumclaw]

What about SNES2? I have some RCA jacks, switches, and stuff. Might be a start.

Just my main problem (aside from next to no experience!) is lack of drill bits. Didn't get around to finding some that looked quite right.

[Lastcallhall]

I got an e-mail back from UTSource and they're going to check the price of the chip. I should get a quote within a day or so.

By the way, if anyone wants to build this converter on an etched PCB, I'm going to make a PCB layout which I will use should I decide to sell some pre-made converters (and I am REALLY tempted to do this).

Depending on price, I might be in for a few. LMK.

[Guntz]

Man, I'd love to get some of those from UTsource and make Component boxes or something! Hopefully there's a steady renewable source to be had at UTSource, component for everyone would be a wonderful thing indeed!

[TrekkiesUnite118]

Will the board be able to fit in a 32X?

I'd love to have my Genesis/32X and my Saturn be able to output in component.

[Ace]

All right, I have a quote from UTSource. They're selling the BA6592F for $3 per chip, so you need to order 4 of those chips to meet the $10 minimum order. They seem to have a pretty huge stock of those chips, so go ahead and get some if you want.

You really should, I think there's some real money to be had if you actually put out something like this. Internal component encoders like the JROK and NeoBitz tend to be expensive and I'm not even sure if they're in stock these days.

Okay, I'm gonna start selling those boxes, then! The only problem would be etching the PCBs as I don't have the necessary equipment for that.

What about SNES2? I have some RCA jacks, switches, and stuff. Might be a start.

You can't get Component out of its encoder. The Super NES Mini uses the Nintendo S-RGB video encoder, which is based off the ROHM BA6596F. This one has RGB outputs rather than Component outputs. You would need an external circuit with the BA6592F to get Component out of the Super NES Mini (and you would need to wire RGB and Sync to the multi-A/V out to get RGB out of the Super NES Mini in the first place).

There are also 3 motherboard revisions of the original-model Super NES with this encoder: SNS-CPU-RGB-01, SNS-CPU-RGB-02 and SNS-CPU-1CHIP-01. If your original-model Super NES has any of these motherboard revisions, you can't get Component video without an external converter.

Will the board be able to fit in a 32X?

Considering there aren't very many components on the circuit, it may be possible to make a board small enough to fit in the 32X. I'm going to design a PCB in the coming days, then get some equipment to etch PCBs and see if it fits in the 32X.

[xelement5x]

Just wanted to say Ace, repped for awesome work.

Looking forward to seeing what comes out of this thread.

[Lastcallhall]

So looking at your schematic, I'm curious - how did you get your pin numbers and information? You go from 22-20, then drop to 8, the you go in the opposite direction and go from 2 to 5 at the bottom of the chip. Then you have 23, 1, then 24 as pinouts for the component out... I tried to find a data sheet but I didn't see one on first look.

Thanks.

[Ace]

The datasheet is in the very first post of the thread:

This VERY ELUSIVE datasheet was helpful:
http://mikejmoffitt.com/BA6592F.pdf

That's where the pin numbers come from. Just so you know, the RGB inputs are labelled as AR, AG and AB. The circuit shown there is a lot more complex, but for RGB to Component conversion, anything that's not the RGB inputs, Composite Sync input, VCC, Ground, Luminance output, B-Y output and R-Y output is completely unnecessary.

I grouped everything in my schematic like this: the left side has the RGB and Sync inputs along with VCC and Ground, and the right side has the Component outputs.

[Lastcallhall]

Got it. Thanks again. I'm waiting on a quote for a few encoders, and then I'll install them in all my systems. This is a fantastic find, and if I could rep you any more, I would!

[Guntz]

Fantastic news to hear UTSource has a large stock of these chips. Component at an affordable price would certainly usher in a new era of video quality on any retro console. I'm getting tired of component being such an expensive modification.

[ApolloBoy]

The only problem would be etching the PCBs as I don't have the necessary equipment for that.

You don't have to, there are actually companies out there that will make you PCBs if you send them a layout. This site might be a good try: http://www.speedypcb.com/

[Ace]

Okay, why the hell is every post I make from my laptop going to be reviewed by a moderator? I don't get it. Hopefully, this gets through.

EDIT: Seems the Quick Reply is being a bitch.

Anyways, thanks for that link, ApolloBoy. I'm going to design my PCB now and check to see how much they'd charge to etch it.

And it looks like I'm gonna need another encoder. My spare BA6592F is faulty as it keeps shifting the tint from blue to green and back. Also, as luck would have it, my other converter failed. It can't sync anymore and I also broke a critical pin on the chip. Son of a bitch...

I guess now, it's time to order some BA6592Fs off of UTSource (as soon as some parts I bought from them show up - they're still not in Canada. Damn SingPost is so f***ing slow!).

I've also found a mistake in the schematic. B-Y and R-Y are reversed. The corrected schematic has been attached to this post.

[TrekkiesUnite118]

Out of curiosity would it be possible to use this chip to make a Dreamcast Component Video box? Or would the 31KHz RGB not work with the BA6592F?