On Thu, 8 Feb 2001, the catcher in the rye wrote:

> hello!
>
> i have to make a low cost CD Player, for the intial part of my Electronic
> Design Project. So, i thought to use a CDROM Drive and a Sound card and
> interface them. But i am facing problems in how to interface, and since i
> have to only playback the CD, please tell me what am i supposed to do?? I
> mean where can i find information abt what i am seeking, like which parts
> in the sound card to use, etc.

Basically you do not need the soundcard for anything!

The CD-ROMs typically have a heaphone output in front panel.
And analogue audio output connector on the back of the drive (goes
to soundcard normally). You can wire the outputs of this analogue
audio output directly to RCA output connectors (to be hooked to your stereo
system).

Other things you need to do is to provide regulated +5V and +12V
to the CD-ROM power connector. If the CD-ROM  has necessary buttons on the front
panel, those usually work and provide the control functions.

If there are no fron panel buttons for all you want, then you need
to build some elctronics which can control the CD-ROM through it's
IDE connector. You can find hardware specs of CD-ROM controlling at
http://www.epanorama.net/pc/storage.html#cdrom


> it would be great if you can help me out.
> thanks,
>
> Kislay
>