White Noise Generator Schematic

In electronics the word white noise resembles the word in physics white light which is a mixture of all other light colors similarly white noise is a mixture of different frequencies and it also has a constant power spectral density.

White noise generator schematic.

Q1 and q2 can be any small signal transistors with a beta of up to 400. This two transistor white noise generator has a surprising feature about 30db more noise than the more traditional designs. Commercially available white noise generators are rather expensive. It s emitter base junction is reversed biased which in the 2n3904 has a breakdown voltage near 6 volts.

Working of the white noise generator circuit. The code is limited to setting the polynomial value of. Simple white noise generator schematic the circuit is simple. The reverse biased emitter base junction of q1 provides the noise source which is fed into the base of q2.

The complete schematic implemented using a cypress cy8c24423 plus a few external parts provides both white and pink noise sources fig. Simple white noise generator circuit used to generate white noise in audio signals which is very helpful in enhancing music. The zener action produces random noise which is from a bandwidth point of view considered to be white noise. Q2 is used as a zener diode.