SPDIF Output from SAA7020, SAA7000 - diyAudio
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Old 7th November 2005, 07:30 PM   #1
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Default SPDIF Output from SAA7020, SAA7000

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 ^_^
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Old 8th November 2005, 10:42 PM   #2
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Default Re: SPDIF Output from SAA7020, SAA7000

Quote:
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.
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Old 19th November 2005, 09:54 AM   #3
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Is there any ciruite diagram illustrate an example?
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Old 21st November 2005, 04:54 PM   #4
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Quote:
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.
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Old 22nd November 2005, 07:43 AM   #5
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but other CD player do not have a CDM1 mechanism. please help.
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Old 22nd November 2005, 08:42 AM   #6
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Quote:
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?
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Old 22nd November 2005, 10:41 AM   #7
phimor is offline phimor  Australia
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Quote:
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
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Old 22nd November 2005, 05:42 PM   #8
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yes, i know how to remove IC or modify ciruite board.
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Old 23rd November 2005, 04:15 PM   #9
drews is offline drews  Italy
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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
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Old 24th November 2005, 07:07 AM   #10
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All CDM-1 CD-Player do not have digital output. Please help.

Angus
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