Sound and sound control with minimal parts

[mister_e]

Well huge one Lets begin !!!

I'll still prefer the 4000 serie because you'll have the plenty control of the adress to begin/stop the message. You'll be able to determine your own adress for each message. Everything by software.

With the 2532, wich its seems to be enough for your app, you'll have to play with message cueing and other bla bla wich will give you more than one headache. And you'll need the same i/o count than with the 4000 series(forget about INT, RAC pin on 4000... can be monitored by software). BTW i also found ISD2560 here in my demo stuff... i think it will be handy in case you'll need any help if you still want to use 2500 serie. I've to finish the one with 4002 i begin... really simple after all.

With the 1100 serie... will be also the same *problem*

Elsewhere on the net someone had a simple 2500 circuit that was storing 10 sounds each accessed by a switch.

can you provide the link?

For you speaker choice, i really don't suggest those Panasonic Card one.. they sounds like hell and so far... not loud enough. I got some of them several years ago and i'm still stick with. The 20mm or 16x35mm will be better. By the specs 20mm one will sounds better. Don't be afraid on this 7 ohms... this will work anyway. If you feel safer add a 1ohm resistor in serie.

I see that some of these chopcorders come in die form. Now I know that this isn't something that can be done at home with a regular soldering iron, but that whole concept appeals to me because the space used is next to nothing. Just out of curiosity, is there any place that can set up this sort of thing and tie it into my circuit pattern? I imagine the cost would be too high, I'm just mainly curious how it works.

As i know/heard, and i'm not familiar with those package, they are *glued* on the board with a special paste/solder. They have to be check with some X-Ray system wich is much expensive than the one your dentist use. One of my friend did some when he works for NORTEL.

BTW if you want to have better explanation on that, here's a link i just found from MAXIM website.
http://www.maxim-ic.com/appnotes.cfm...te_number/3377

I suggest SOIC to begin with solder flux and/or solder paste.