Frequency synthesis

Archiver

I'm looking a nice simple preferably one chip solution to produce TTL level
frequencies up to 200KHZ from a serial signal. Doe's anyone have any
ideas ?

Justin Pentecost

Archiver

You could use a KA331 Voltage to Frequency converter to get up to 100khz.

http://parametric.fairchildsemi.com/datasheet.asp?PN=KA331&FAM=V2FConvert

Texas Intruments has a VFC320, Voltage-to-Frequency and
Frequency-to-Voltage Converter, up to 1 MHz.

http://focus.ti.com/docs/prod/productfolder.jhtml?genericPartNumber=VFC320

Use a MAXIM DAC to drive it:

http://www.maxim-ic.com/

They have over 120 serial DACS to choose from.

Sorry don't know of any one-chip solutions. But I bet there is one out
there.

Good Luck, Pete.

________________________________________________________
Peter W. Houlihan, (413) 538-3091, phouliha@m...
Mellon Postdoctoral Fellow, Center for Environmental Literacy
Mount Holyoke College, South Hadley, MA 01075

Visit our website at:
http://www.mtholyoke.edu/proj/cel/index.html
________________________________________________________


On Mon, 8 Apr 2002, Justin Pentecost wrote:

> Date: Mon, 8 Apr 2002 20:12:27 +0100
> From: Justin Pentecost <justin@k...>
> Reply-To: basicstamps@yahoogroups.com
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Frequency synthesis
>
> I'm looking a nice simple preferably one chip solution to produce TTL level
> frequencies up to 200KHZ from a serial signal. Doe's anyone have any
> ideas ?
>
> Justin Pentecost
>
>
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