micronetics, hudson, nh 03051 / tel: 603-883-2900 / fax: 603-882-8987 / noisesales@micronetics.com www.micron etics.com CNS7105 c oaxial a mplified n oise s ource 100 k h zto 3 mh z d d escription escription the CNS7105 noise module is designed for a wide range of applications. it features high noise output amplitude for uses ranging from encryption to jamming. all biasing and amplification circuitry 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. CNS7105 t ypical d ata 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. s s pecifica pecifica tions tions ? frequency: 100 khz to 3 mhz ? noise power spectral density (no): -73 dbm/hz (min) ? noise power (n): -8 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 available from stock
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