Looking for simple DIY sine wave generator plans

[blackdog]

Hi,

Wy not build my "Low Cost, High Performance" Sinus Gen...
It is designed around a NE5532AN or if you want lower distortion higer frequentie range use a OPA2134.

Its stable
Almost no AGC bounce
Low Output Impedance,
Output voltage <1mv to 10V, 2 range.
Good level flatness
Low distortion
Sync output

Schematic


You need to make your own opto with a white LED and a LDR resistor.

If you want to know how to make de OPTO, take a look at my topic on this Dutch website, is has a lot of pictures how to make the OPTO.
http://www.circuitsonline.net/forum/view/114296/1


Kind regarts,
Blackdog

[dannyf]

does anyone know of a simple, stable - and preferably cheap - circuit to generate sine waves up to at least 200Khz?

You need 3 wires to control an ad9850 module. A 8-pdip mcu can be programmed to do that, a potentiometer to control the output frequency. Fairly easy to do if you are willing to do some programming.

[Gazucha]

Hi,

Why not build my "Low Cost, High Performance" Sinus Gen...

Kind regarts,
Blackdog

 Hi Blackdog,

 thankyou.

 That looks well within my capabilities and is very much the sort of design I was hoping for.

 Good man.

 Gaz

[dannyf]

If you want to know how to make de OPTO

Cut a short piece of straw and stick your LDR on one end and your LED on the other.

Done.