SPDIF Output from SAA7020, SAA7000

[lscangus]

What extra chip do i need to add, which one i should connect it to.. how are the wires are connected??

I am new to CDP modding. Please help ^_^

[rfbrw]

Originally posted by lscangus
What extra chip do i need to add, which one i should connect it to.. how are the wires are connected??

I am new to CDP modding. Please help ^_^

The SAA70x0 chipset is a first generation chipset and has absolutely no native support for SPDIF. Adding a SPDIF output of any kind cannot be considered a mod. It is a small digital design problem and unless you use programmable logic, and I don't mean PALs or GALs, you are looking at a lot of TTL ICs. It would be easier to mod the dac and have it accept simultaneous L/R data and clock.
If, OTOH, you insist on going down this path the next thing you need to do select an SPDIF transmitter and download the datasheet as that wiil determine the required logic. You will also need to work out how much space is available in the CD player.

[lscangus]

Is there any ciruite diagram illustrate an example?

[rfbrw]

Originally posted by lscangus
Is there any ciruite diagram illustrate an example?

There may well be something out there as it has cropped up in usenet on occasion but I have nothing fit for human consumption.
I do believe the CD player in question is a CD54. It is similar in size to a CD104. If I am to fit anything into my '104, it will have to be SMD and that calls for a PCB. Buying another CD player may well prove to be a cheaper option.

[lscangus]

but other CD player do not have a CDM1 mechanism. please help.

[rfbrw]

Originally posted by lscangus
but other CD player do not have a CDM1 mechanism. please help.

Fair enough. How are you at building electronic circuits? Any prior knowledge? Are you able to make minor modifications to the CD54 PCB or remove an IC?

[phimor]

Originally posted by drews Hi rfbrw, are you using a SAA7000 with TDA1541A?
Which cd-player? Ciao Andrea

Adding SPDIF to a CD104.

Hi rfbrw, I'm also interested in this, and was hoping for a report on how you got on?

Very interested...

But my electronic know-how is a little limited, mostly self taught on early Philips players, so talk s-l-o-w-l-y.

Now is the time for new chalenges, adding SPDIF (or I2S possibly?)



and I second Iscangus: please help

Cheers

philippe

[lscangus]

yes, i know how to remove IC or modify ciruite board.

[drews]

You can use TDA1541 instead of TDA1540 but you can not add spdif or i2s from saa7020.
There many other cd-player that have cdm1 and spdif

bye
Andrea

[lscangus]

All CDM-1 CD-Player do not have digital output. Please help.

Angus