Taking digital for Toslink, how?

lumanauw · 16th September 2004, 03:32 AM

I've got a problem. A friend of mine bought a DAC that needed Toslink (optical) feed. It doesnt have Coaxial (RCA) digital input.
More problem. His CD player doesnt have digital out at all.
But I feel that this digital output can be taken from one point inside his CD player. I've looked people installing VCD card (Mpeg) inside ordinary CD player so it can play VCD. I think this is the same pin for getting digital output for my friend's DAC.

1. At what pin (what IC) should I take the digital output for feeding outside DAC?
2. How to make optical toslink? Anyone has sch for it?
3. Does this need a buffer or small amp for buffering digital inside the CD player and the Toslink cct?

OliverD · 16th September 2004, 04:22 PM

This shouldn't be a problem at all.

But we need more information. What chipset is your friend's CD player using? Open it up and have a look. At least tell us make and model.

lumanauw · 17th September 2004, 01:17 AM

Hi OliverD,

Do you mean the code of the IC's inside the CD player? I will open the case and take a look inside the CD player. (My friend is in out of town right now. As soon as he comes back I will tell the data needed)

It is not a single CD player. It is a "combo", one unit has Audio CD player, Radio tuner, and small power amp. All the controls (volume, source, balance, treble) are digital, so I think there will be IC's for controlling these besides IC's that makes the audio.
What IC should I look at? Is it the DAC IC that you need to know the make and model?

16th September 2004, 03:32 AM	#1
lumanauw diyAudio Moderator Emeritus Join Date: Oct 2002 Location: Bandung	Taking digital for Toslink, how? I've got a problem. A friend of mine bought a DAC that needed Toslink (optical) feed. It doesnt have Coaxial (RCA) digital input. More problem. His CD player doesnt have digital out at all. But I feel that this digital output can be taken from one point inside his CD player. I've looked people installing VCD card (Mpeg) inside ordinary CD player so it can play VCD. I think this is the same pin for getting digital output for my friend's DAC. 1. At what pin (what IC) should I take the digital output for feeding outside DAC? 2. How to make optical toslink? Anyone has sch for it? 3. Does this need a buffer or small amp for buffering digital inside the CD player and the Toslink cct?

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16th September 2004, 04:22 PM	#2
OliverD diyAudio Member Join Date: Nov 2002 Location: Germany	This shouldn't be a problem at all. But we need more information. What chipset is your friend's CD player using? Open it up and have a look. At least tell us make and model.

17th September 2004, 01:17 AM	#3
lumanauw diyAudio Moderator Emeritus Join Date: Oct 2002 Location: Bandung	Hi OliverD, Do you mean the code of the IC's inside the CD player? I will open the case and take a look inside the CD player. (My friend is in out of town right now. As soon as he comes back I will tell the data needed) It is not a single CD player. It is a "combo", one unit has Audio CD player, Radio tuner, and small power amp. All the controls (volume, source, balance, treble) are digital, so I think there will be IC's for controlling these besides IC's that makes the audio. What IC should I look at? Is it the DAC IC that you need to know the make and model?

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