Continuous Sound Playing IC
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From: CCD on 30 Jul 2008 03:55 On Jul 28, 10:32 pm, mpm <mpmill...(a)aol.com> wrote: > Another possibility is the ISD4004 (or similar chips) avail from > Digikey. > Search on Keyword = "Winbond", then click Voice Recorders... > > http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=2556441;keyw.... > > Some of these are stand-alone, but limited voice storage / quality. > Don't know your spec's, so can't recommend any particular ones. > I do know the ISD4004' will instantly loop. > > The remaining ones will require a small micro, but your overhead in > code will be greatly simplified by using one of these outboard voice > chips. Just select the address and function (play record, etc..), and > you're ready to rock and roll. Thanx man, m going to use ISD1740 with 40sec recoring time, Ithink that one will do. I've got ATmega32 kit also with ADC & DAC onboard, i need only a memory chip., for my experiment sake, i'll try that one,too!! Thank you for the response, guys!
From: mpm on 30 Jul 2008 21:49
On Jul 30, 2:55�am, CCD <friendly_your...(a)yahoo.co.in> wrote: > On Jul 28, 10:32�pm, mpm <mpmill...(a)aol.com> wrote: > > > Another possibility is the ISD4004 (or similar chips) avail from > > Digikey. > > Search on Keyword = "Winbond", then click Voice Recorders... > > >http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=2556441;keyw.... > > > Some of these are stand-alone, but limited voice storage / quality. > > Don't know your spec's, so can't recommend any particular ones. > > I do know the ISD4004' will �instantly loop. > > > The remaining ones will require a small micro, but your overhead in > > code will be greatly simplified by using one of these outboard voice > > chips. �Just select the address and function (play record, etc...), and > > you're ready to rock and roll. > > Thanx man, > m going to use ISD1740 with 40sec recoring time, Ithink that one will > do. > I've got ATmega32 kit also with ADC & DAC onboard, i need only a > memory chip., for my experiment sake, i'll try that one,too!! > Thank you for the response, guys! Cool. Glad to help. Good luck. Looking at the datasheet, you may want to amplify the audio. If so, and if you have 12-volts, take a look at the National Semiconductor LM4950 Minimum parts. Plenty of oomph for the money. -mpm |