On 25/06/2012 6:07 PM, alan.b.pearce@stfc.ac.uk wrote:
>>> DDS generator will fit the bill.  There is an article in recent
>>> NutsnVolts magazine that uses PIC to control PLL to do just that, it's
>>> trivial to add serial interface to that.  IIRC, total cost was under $7=
0.
>> Yeah,  I was thinking of an easy FT232 + DDS chip + buffer design to sav=
e time.  I
>> haven't used a DDS chip before so was having trouble pinning down someth=
ing that did
>> low frequencies.  They all seem to talk about how many MHz they can do. =
 I'll do a
>> bit more research and see what reasonable cost ones I can find.
>> David...
> I suspect one could do the frequency range you require with the DDS unit =
in the new 16F15xx PICs.

Thanks, I'll check it out.  So many new PICs these days!
David...

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David Duffy        Audio Visual Devices P/L
Unit 8, 10 Hook St, Capalaba 4157 Australia
Ph: +61 7 38235717      Fax: +61 7 38234717
Our Web Site: www.audiovisualdevices.com.au
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