At 11:51 AM 2/3/2004 -0600, you wrote:


>I'm not sure if it has been fully released though.  You can get samples but
>there is no way to specify the frequency you need.  Either way, with your
>lack of need for precision it looks like you could go with one of these in
>an SO package with no crystal and really save some space.

They are more like 1%-1.5% though, which is rather outside his desired
accuracy range. (10,000 - 15,000 ppm  vs. 200 ppm)

There are other manufacturers of these low-accuracy RC things. Such as
this one:

http://www.linear.com/pdf/69034f.pdf

This has the frequency set via an SPI or I2C port, but it powers up
running at ~1kHz so you could clock a micro with it, and have the
micro initialize to the desired frequency (or even change it on the fly).
It's also quite inaccurate, compared to the stated requirements of the OP.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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