Schematics / Noise Generation
Tiny White Noise Generator
By using the programmable blocks of a Cypress MicroSystems CY8C25122 PSoC microprocessor, it is possible to construct a 100Khz bandwidth white noise generator that provides a unique output sequence for six hours before repeating....
Scalable Noise Generator
Using some shift registers and exclusive OR gates, it is possible to construct what is known as a psuedo random code generator. Depending on what taps are used on the shift register, a sequence of up to 2^n-1 numbers can be generated before the sequence repeats. If we feed the output of the shift registers into an A/D converter and look at the output, we will see what looks like white noise....
Pink Noise Generator
For audio testing, a pink noise source is an invaluable tool. It is essentially a flat frequency response noise source, and will quickly show any anomolies in speaker systems, room acoustics and crossover networks....
Random Bit Sequence Generator
A random-bit-sequence generator is basic equipment for prototyping and testing any data-transmission system. You use such a generator when measuring BER (bit-error rate) and pattern-dependent effects in a transmission system....