unisonic technologies co., ltd utc571n linear integrated circuit www.unisonic.com.tw 1 of 4 copyright ? 2012 unisonic technologies co., ltd qw-r121-021.b compander ? description the utc571n is a versatile low cost dual gain control circuit in which either channel may be used as a dynamic range compressor or expandor. each channel has a full-wave rectifier to detect the average value of the signal, a linerarized temperature-compensated variable gain cell and an operational amplifier. the utc571n is well suited for use in cellular radio and radio communication systems, modem s, telephone, and satellite broadcast/receive audio systems. ? features * complete compressor and expandor in one chip * temperature compensated * greater than 110db dynamic range * operates down to 6vdc * system levels adjustable with external components * distortion may be trimmed out * dynamic noise reduction systems * voltage-controlled amplifier ? ordering information ordering number package packing lead free halogen free utc571nl-s16-r utc571ng-s16-r sop-16 tape reel UTC571NL-S16-T utc571ng-s16-t sop-16 tube utc571nl-s16w-r utc571ng-s16w-r sop-16(w) tape reel utc571nl-s16w-t utc571ng-s16w-t sop-16(w) tube
utc571n linear integrated circuit unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r121-021.b ? pin connections ? block diagram
utc571n linear integrated circuit unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r121-021.b ? absolute maximum ratings (t a =25 c, unless otherwise specified) parameter symbol ratings units operating voltage v cc 18 v power dissipation sop-16 p d 400 mw sop-16(w) 625 junction temperature t j +150 operating temperature t opr -20 ~ +85 c note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings onl y and functional device operation is not implied. ? thermal data parameter symbol ratings unit junction to ambient sop-16 ja 130 /w sop-16(w) 105 ? ac electrical characteristics (t a =25 c, v cc =+5v, unless otherwise specified) parameter symbol conditions min typ max units supply voltage v cc 6 18 v supply current i cc no signal 3.2 4.8 ma output current capability i out 20 output slew rate sr 0.5 v/ s gsin cell distortion untrimmed 0.5 2.0 % trimmed 0.1 resister tolerance 5 15 % internal reference voltage 1.7 1.85 2.0 v output dc shift (note 3) untrimmed 30 150 mv expandor output noise no signal, 15hz-20khz (note 1) 20 60 v unity gain level (note 5) 1khz -1.5 0 +1.5 dbm gain change (note 2,4) 0.1 db reference drift (note 4) +2,-25 +20,-50 mv resistor drift (note 4) +8,-0 % tracking error(measured relative to value at unity gain) equals [v out -v out (unity gain)]db-v2dbm rectifier input, v2=+6dbm,v1=0db +0.2 -1,+1.5 db v2=-30dbm, v1=0db +0.2 channel separation 60 db note: 1. input to v1 and v2 grounded. 2. measured at 0dbm, 1khz. 3. expandor ac input change from no signal to 0dbm. 4. relative to value at t a = 25c. 5. 0dbm = 775mv rms. 6. electrical characteristics for the utc571n only are specified over -20 to +85c temperature range.
utc571n linear integrated circuit unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r121-021.b ? typical application circuit g v cc =15v 0.1 f 10 f 20k 2.2 f 3.14 v1 2.2 f 2.15 v2 10k 4 1.16 5.12 2.2 f 8.2k 8.9 200pf 30k v ref 7.10 20k 6.11 v0 + - 13 utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior writ ten consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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