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Old 7th March 2003, 09:04 AM   #1
Bricolo is offline Bricolo  France
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Default Sine and square wave function generator

How can I build this easilly?
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Old 7th March 2003, 09:19 AM   #2
Netlist is offline Netlist  Belgium
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Default Re: Sine and square wave function generator

Quote:
Originally posted by Bricolo
How can I build this easilly?
http://www.elecdesign.com/magazine/2...0/ifd/2IFD.pdf
http://members.shaw.ca/roma/thirteen.html

Looks like those must be very easy to build; specially the second one looks extremely simple, but is limited to 10Khz.

/Hugo – Has an old tube HF generator- to trim old radios
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Old 7th March 2003, 09:45 AM   #3
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http://sound.westhost.com/project22.htm
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Old 7th March 2003, 04:14 PM   #4
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Here ya go

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Old 7th March 2003, 04:50 PM   #5
Bricolo is offline Bricolo  France
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nothing easier?
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Old 7th March 2003, 04:55 PM   #6
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If you don't require low-distorsion sine waves there are several
function generator ICs, eg. MAX038, XR2206 and ICL8038. They
all seem to require just a few external passive components.
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Old 7th March 2003, 05:08 PM   #7
JDeV is offline JDeV  South Africa
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Want easy?
You got PC, soundcard? Get free software , http://www.softpile.com/Multimedia/A...205_index.html ,for example, now u got signal generator
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Old 7th March 2003, 05:16 PM   #8
Bricolo is offline Bricolo  France
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Quote:
Originally posted by Christer
If you don't require low-distorsion sine waves there are several
function generator ICs, eg. MAX038, XR2206 and ICL8038. They
all seem to require just a few external passive components.
that's exacty what I was looking for

but what is low-distortion? 0.1%, 1%, more?
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Old 7th March 2003, 05:28 PM   #9
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I haven't looked at the datasheets, but according to tech. data
in a catalouge the ICL has max 1% distorsion for sine wave.
I think the others are better, but you have to check the
datasheets.
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Old 7th March 2003, 08:14 PM   #10
Jeff R is offline Jeff R  United States
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I used the 8038 years ago and it works decently, but it hardly hi fi. In fact, the way it generates a sine wave is via nonlinear wave shaping using diodes in an op amp circuit. For checking frequency response it works ok, but it is not a true sine wave generator.
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