Voltage Controlled Noise Generator Works.

[Scott Gravenhorst, Synthaholic]

I have just completed the breadboarding of my VCNG.  The unit is a 
multipurpose module that includes a linear VCO, based on the LM13600 
OTA with square and triangle outputs as well as a CMOS clock driver 
output.  The clock driver feeds a 16 stage XOR feedback shift register 
loop.  The square and triangle outputs can be used as VCO outputs.  
Variations of this circuit could drive divider chains.  The VCO's range 
is (of course) controlled by it's integrating capacitor and is capable 
of operation up to 200 kHz (according to the LM13600 spec sheet), 
although my tests have been only to about 30 kHz.

Whoosh whoosh whoosh....



-- 
-- Scott G., Synthaholic

There is no 12 step program for synthaholics.  Thank your Superior Being.