Sine and square wave function generator

Bricolo · 7th March 2003, 10:04 AM

How can I build this easilly?

Netlist · 7th March 2003, 10:19 AM

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

Christer · 7th March 2003, 10:45 AM

http://sound.westhost.com/project22.htm

Sch3mat1c · 7th March 2003, 05:14 PM

Here ya go

Bricolo · 7th March 2003, 05:50 PM

nothing easier?

Christer · 7th March 2003, 05:55 PM

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.

JDeV · 7th March 2003, 06:08 PM

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

Bricolo · 7th March 2003, 06:16 PM

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?

Christer · 7th March 2003, 06:28 PM

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.

Jeff R · 7th March 2003, 09:14 PM

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.

7th March 2003, 10:04 AM	#1
Bricolo diyAudio Member Join Date: Nov 2002 Location: Grenoble, FR	Sine and square wave function generator How can I build this easilly?

7th March 2003, 10:45 AM	#3
Christer diyAudio Member Join Date: Sep 2002 Location: Sweden	http://sound.westhost.com/project22.htm __________________ "Jitter clock: - - indicates product does NOT have this feature" From product spec. of a CD player

7th March 2003, 05:55 PM	#6
Christer diyAudio Member Join Date: Sep 2002 Location: Sweden	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. __________________ "Jitter clock: - - indicates product does NOT have this feature" From product spec. of a CD player

7th March 2003, 06:08 PM	#7
JDeV diyAudio Member Join Date: Oct 2002 Location: Cape Town	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 __________________ "Be carefull who's advice you buy, but be patient with those who supply it." From Baz Luhrmann's - Everybody’s Free (To Wear Sunscreen)

7th March 2003, 06:28 PM	#9
Christer diyAudio Member Join Date: Sep 2002 Location: Sweden	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. __________________ "Jitter clock: - - indicates product does NOT have this feature" From product spec. of a CD player


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7th March 2003, 05:14 PM	#4
Sch3mat1c diyAudio Member Join Date: Jan 2003 Location: Milwaukee, WI	Here ya go

7th March 2003, 05:50 PM	#5
Bricolo diyAudio Member Join Date: Nov 2002 Location: Grenoble, FR	nothing easier?

7th March 2003, 09:14 PM	#10
Jeff R diyAudio Member Join Date: Nov 2002 Location: Florida	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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