Erica Synths Black Digital Noise

The Black Digital Noise is our pathological brainchild. A unique noise module that makes wide range of noise effects; almost pure white noise, Atari console-like one bit noise and other crazy, more or less predictable sounds. At the heart of the module is a programmable logic matrix that includes two linear feedback shift registers that generate polynomial noise effects.
Features
Wide range of noise effects (pure white noise to 1bit & 4bit vintage computer style noises)

Two polynomial feedback shift registers with CV control to set noise character

Adjustable noise frequency

External clock in - can follow frequency of VCO 

Sync feature - polynomial reset

Can process audio signals (Even voice!)

Inputs/outputs are protected against over-voltage

Diode protection on reversed power supply

Similar noise generation scheme was used in several classical drum machines, and technology comes from techniques used in data scrambling.

Technical specifications:

Output signal amplitude
-5 - +5 V
Noise bit-width 
1bit - 4 bits
CV level
-10V - + 10 V
Power consumption
+93mA, -25mA
Module width
10 HP
Module depth
25 mm