[Laser] Laser on CDs XE2AT

[laser@mailman.qth.net]

In a message dated 2/17/04 3:54:18 PM GMT Standard Time, xe2at@hotmail.com 
writes:

> GM all I have a very old CD player and I saw a chip like OP210 , the 
> diference is it have 10 pins( but just 8 used ), somebodie know about it?
> I can use it for a Laser receiver ?
>  I can use the G0MRF diagram like the used for Op210 ?
> Thanks in advance
> Al
> XE2AT
>   and the Laser used on CD how many mw have ?
> 
> 

If it's the Burr Brown OPT210, then it is a good choice for a front end.  My 
opt210 can detect a laser signal that you can't see and has given good 5 x 7 
speech and 599 CW over 76km.

There are data sheets available.  There is also circuit for a receiver on my 
web site. If you decide to build that, drop me a line as we've managed to 
extract another 6dB+ of sensitivity since that circuit was drawn

For later CD recorders or DVDs you'll also have a nice high power laser 
diode. However your early version is probably a couple of mW of I.R.

73

David


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