RCA to TV -Is the following correct or no?

[sojiro]

RCA to TV

Hello
Is the following correct or no?
Is anything else needed?
**broken link removed**

 

[keith1200rs]

RCA to TV

Is that a composite video signal input? What are you planning to do with it in the micro?

Keith

 

[sojiro]

Re: RCA to TV

Yes it is composite video

I will produce video and image

I just need help with the resistor nothing else
Do i need it?
Should i connect it to ground or is it ok the way it is?

Thanks

 

[JoannesPaulus]

RCA to TV

You should connect it to ground, it works as a termination for the input line.

 

[IanP]

Re: RCA to TV

I'd add 75Ω as a termination and two Schottky protective diodes .. see attached picture ..

Rgds,
IanP
:|

 

[keith1200rs]

RCA to TV

The video may be AC coupled in which case you will need to bias it above ground. For example 150 ohms to each supply rail.

I am not sure what you are planning to do with it, but most microcontrollers won't be capable of digitising video - the ADCs aren't fast enough. Also, it creates a lot of data.

Keith.

 

[sojiro]

Re: RCA to TV

Thanks everyone

I think the attached image from IanP is what i need
What diodes should i use exact number please

cheers