Use the VCO in the 4046 phase lock loop, it might drift a bit
martin
Use the VCO in the 4046 phase lock loop, it might drift a bit
martin
Hi.
I am looking for a way to convert 1V into 100Hz and 10V in to 1KHz respectively. Does anyone have any simple idea's on how I might do this?
Regards
AJ
Google for "voltage-to-frequency converter." National Semiconductor makes a chip... I forget what it's called.
In message , dated Thu,
17 Aug 2006, AJ writesGoogle for 'voltage-controlled oscillator'.
-- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk 2006 is YMMVI- Your mileage may vary immensely. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
V-to-F (Voltage-to-Frequency) converter.
...Jim Thompson
-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |
Thanks guys, just found the LM231..... Don't know how I missed it, does just what im after.
Regards
AJ
That is the industrial temperature range part - -25C to +85C. The LM331 is the coomercial part 0C to 70C. Cheaper, and much easier to get. Farnell stocks the LM331 and LM331AN, but not the LM231.
You might want to check out the Analog Devices web-site - search for "voltage-to-frequency converter". See
for an informative tutorial paper.
-- Bill Sloman, Nijmegen
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