n1mjr@IASTATE.EDU (Reilly Michael Joseph) (04/09/91)
Help! I need a reasonably flat white noise source with a bandwidth from 0 kHz to about 40 kHz. (I'm building a system to emulate the mating calls of katydids.) I'm looking for some sort of single-chip solution. The output level isn't critical, since it will have to be buffered and switched anyway. I've fooled around a little with amplifying the noise across a reverse biased zener diode, but the level of amplification needed makes the circuit design and layout a little too critical for my taste. Any help at all will be greatly appreciated. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Mike Reilly Stop the madness, Don't do EE n1.mjr@isumvs n1mjr@isuvms n1mjr@iastate.edu
burris@highspl (David Burris) (04/10/91)
From article <1991Apr9.035435@IASTATE.EDU>, by n1mjr@IASTATE.EDU (Reilly Michael Joseph): > I need a reasonably flat white noise source with a bandwidth > from 0 kHz to about 40 kHz. > > I'm looking for some sort of single-chip solution. You can get a noise generator chip at Radio Shack. It's SUPPOSED to be white noise. I don't know statistically how close it actually is. -- ================================================================ David Burris Aurora,Il. burris@highspl ..!linac!highspl!burris ================================================================