micronetics, hudson, nh 03051 / tel: 603-883-2900 / fax: 603-882-8987 / noisesales@micronetics.com www.micronet ics.com CNS7106 c oaxial a mplified n oise s ource 200 k h zto 12 mh z d d escription escription the CNS7106 noise module is designed for a wide range of applications. it features high noise output amplitude for uses ranging from encryption to jam- ming. all biasing and amplification circuit- ry is built-in making it easy to design into your system. it features a built-in voltage regulator for highly stable output even if your dc supply lines are not. CNS7106 t ypical d ata s s pecifica pecifica tions tions ? frequency: 200 khz to 10 mhz ? noise power spectral density (no): -79 dbm/hz ? noise power (n): -10 dbm ? spectral flatness: 1 db (total window) ? bias: 12 vdc, internally regulated ? current draw: 35 ma max ? peak factor: 5:1 ? operating temp: -55 to +85 c ? storage temp: -55 to 125 c a a pplica pplica tions tions common noise applications 1. barrage jamming: the noise source is fed into the tuning port of a vco via a bias tee and a posi- tive dc voltage. the random nature of noise makes the output of the vco to hop around in a given frequency band randomly making an ideal jamming sig- nal. further circuitry can be used between the noise source and tuning port to shape the noise probability den- sity function (pdf) for the desired jam- ming effect. 2. random number generation for encryption: noise sources being truly random (not pseudorandom) give the ultimate in secure communication because of their ability to generate a truly random num- ber pattern. this can be used to seed an encryption key for authentication. the noise signal can be fed directly into an a/d converter for sampling or a sim- pler techniques might use a comparator. further shaping of the noise is often employed whether either analog if in front of the a/d converter or afterwards using dsp. available from stock
|
