RGB to Component IC

kipper2k · 14 June 2009, 22:29

Hi All,

I was trolling the internet again and i found this...

http://www.national.com/ds/LM/LMH1251.pdf

AN IC that converts RGB input and outputs the 3 component signals for mabbe an even better picture. It doesnt look like it needs much support in the way of external components either.

On page 8... after the 33 ohm resistors to the right, are they Caps? wonder what values if they are ?

Whats peoples thoughts, will this work on the miggies ?

@Nathan

The chip is approx $12 each... it looks like it could actually be added to the S-Video board too with not too much effort.

edit: this chip looks to be tiny so may be a tough solder job needed. total length is 0.31 inches... 24 pins... OUCH!!

Rabbit80 · 15 June 2009, 00:36

I think you got it wrong - there is no component output... They would br Pr/Pb/y which are all inputs

alexh · 15 June 2009, 00:38

This is the other way around. It is a component -> RGB chip

The name should give it away "YPBPR to RGBHV Converter"

14 June 2009, 22:29	#1
kipper2k Registered User Join Date: Sep 2006 Location: Thunder Bay, Canada Posts: 4,323	RGB to Component IC Hi All, I was trolling the internet again and i found this... http://www.national.com/ds/LM/LMH1251.pdf AN IC that converts RGB input and outputs the 3 component signals for mabbe an even better picture. It doesnt look like it needs much support in the way of external components either. On page 8... after the 33 ohm resistors to the right, are they Caps? wonder what values if they are ? Whats peoples thoughts, will this work on the miggies ? @Nathan The chip is approx $12 each... it looks like it could actually be added to the S-Video board too with not too much effort. edit: this chip looks to be tiny so may be a tough solder job needed. total length is 0.31 inches... 24 pins... OUCH!! Last edited by kipper2k; 14 June 2009 at 22:57.

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15 June 2009, 00:36	#2
Rabbit80 Its hard being famous! Join Date: Aug 2008 Location: Gateway to the dales, UK Age: 44 Posts: 633	I think you got it wrong - there is no component output... They would br Pr/Pb/y which are all inputs

15 June 2009, 00:38	#3
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,448	This is the other way around. It is a component -> RGB chip The name should give it away "YPBPR to RGBHV Converter"

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