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Subject: Re: Voice Recorder Chip?
References: <firstname.lastname@example.org> <3E0392DD.email@example.com> <3E041B3C.86ACF5B3@bigpond.net.au> <firstname.lastname@example.org>
Date: Sat, 21 Dec 2002 23:47:58 GMT
NNTP-Posting-Date: Sun, 22 Dec 2002 10:47:58 EST
Organization: BigPond Internet Services (http://www.bigpond.net.au)
ISD are now Winbond.
Spehro Pefhany wrote:
> On Sat, 21 Dec 2002 07:42:40 GMT, the renowned onestone
> >Pick any of the ISD chips with an 8kHz sampling rates. These are alwasy
> >the lowest recording time versions in each family. For example the 2560
> >has a sampling rate of 8kHz and a filter passband of 3.4kHz. This should
> >be adequate. Quality is very good. The ISD1416 has similar
> >characteristics, but less storage capacity (16 secs). Again this should
> >be plenty. If you want 2560's I've got around 90 hanging around in DIP
> >and SOIC, you're welcome to a couple.
> The oscillator stability on those looks pretty good provided they
> get a regulated supply, especially over a narrow temperature range-
> maybe a tenth of a percent or so.
> The OTP chips I've got vary a lot more.
> Best regards,
> Spehro Pefhany
> "it's the network..." "The Journey is the reward"
> email@example.com Info for manufacturers: http://www.trexon.com
> Embedded software/hardware/analog Info for designers: http://www.speff.com
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