[Diy_efi] function generator for shutterwheel

[Bill Shaw]

Analog Devices makes  some function generator chips.  Here's a link to an
app note with schematics....

http://www.analog.com/UploadedFiles/Application_Notes/724445866AN285.pdf#xml
=http://search.analog.com/search/pdfPainter.aspx?url=http://www.analog.com/U
ploadedFiles/Application_Notes/724445866AN285.pdf&fterm=trig&fterm=function&
fterm=generator&fterm=trig%20function%20generator&la=en

Search their web site for 'function generator'.

hth,

Bill
'84 928s 5 sp. Vortech/749

> 
> --- Phil <philhunt at comcast.net> wrote:
> 
>> I want to drive a VW management system on a benchtop
>> mockup for testing and development purposes. I need
>> a function generator that mimics the crank senser:
>> i.e: a sine wave of 30 or so cycles (haven't counted
>> the teeth yet) punctuated by a missing point. I'll
>> need to be able to change the frequecy to mimic rpm.
>> I already have a function generator-is there some
>> kind of simple circuit I could process it's poutput
>> with? Phil, Phil's Foreign Car, Kenvil, NJ USA  973
>> 584 0161>