Digital controlled filter.

[The Dark force of dance]

Y-ellow Y'all.
	Anyone know of a readily available digitally controlled filter. I was
hoping for a VCF type filter which can be run in band-pass and Low-pass
modes but was controlled by a serial digital input. I2C/microwire/etc. I
spoze I could mess round with an Switched Cap filter or something (If I
could get a suitable one) but I just wanna do this quickly, simply and very
very small. I need to whack it on the end of a micro obviously.

What I need is something like a curtis chip with a serial digital input. I
know it's unlikely but is there anything like that out there these days? 

Thanks in advance.

Be absolutely Icebox.

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