unisonic technologies co., a6043 linear integrated circuit www.unisonic.com.tw 1 copyright ? 2005 unisonic technologies co., qw-r110-018.a fm stereo multiplex ? description the utc a6043 is phase locked loop(pll) fm stereo multiplex ic. it is suitable for automotiv e applications and portable radio applications. ? features * low and wide operation: v cc = 3v~12v * high p ilot lamp on sensitivity: v l(on) = 9mv rms (typ.) * suitable for led driving: i lamp = 20ma (max.) * recommendable input voltage range: v in = 200~700mv rms * low distortion: thd = 0.08% (typ.) at v in = 200mv rms (stereo) * vco stop capability stereo lamp and turn off are simultaneously operated by connect pin 7 to v cc. * easy adjustment (the monitored free running frequency of vco is 38khz at pin 6.) sip-9 *pb-free plating product number: a6043l ? ordering information order number normal lead free package packing a6043-g09-t a6043l-g09-t sip-9 tube
a6043 linear integrated circuit unisonic technologies co., ltd 2 www.unisonic.com.tw qw-r110-018.a ? block diagram 1 8 9 7 6 5 3 2 4 v cc gnd l.p.f-2 right left stereo decoder 19khz<0 38khz stabilzed power supply 1/2 stereo switch 1/2 1/2 vco 76khz trigger 19khz<90 dc pilot detector phase detector af input st.lamp l.p.f-1 vco
a6043 linear integrated circuit unisonic technologies co., ltd 3 www.unisonic.com.tw qw-r110-018.a ? absolute maximum ratings (ta = 25 ) parameter symbol ratings unit supply voltage v cc 12 v lamp voltage v lamp 16 v lamp current i lamp 20 ma power dissipation p d 500 mw operating temperature t opr -20 ~ +85 storage temperature t stg -40 ~ +150 ? electrical characteristics 1. dc characteristics (ta = 25 , v cc = 8v, terminal voltage at no signal.) pin no. parameter symbol min typ max unit 1 composite signal input input 3.5 v 2 pll low-pass filter lpf1 6.6 v 3 v cc v cc 8.0 v 4 v co v co 7.1 v 5 ground gnd 0 v 6 stereo lamp sled v 7 pilot detect low-pas filter lpf2 7.4 v 8 l-ch output l-ch 4.0 v 9 r-ch output r-ch 4.0 v 2. ac electrical characteristics (ta = 25 , v cc = 8v, f = 1khz, unless otherwise specified.) parameter symbol test conditions min typ max unit supply current i cc at lamp off 11 18 ma maximum input voltage(stereo) v in(max) l+r = 90% p = 10% 900 mv rms channel separation cs l+r = 180 mv rms , p = 20mv rms 36 45 db monaural v in = 200mv rms 0.08 0.3 % total harmonic distortion stereo thd l+r = 180 mv rms , p = 20mv rms 0.08 % voltage gain g v v in = 200mv rms -2.0 0.5 +2.0 db channel balance cb v in = 200mv rms 0 1.5 db on v l(on) 9 15 mv rms lamp sensitivity off v l(off) pilot input 2 6 mv rms stereo lamp hysteresis v hys to turn off from lamp turn on 3 mv rms capture range cr p = 20mv rms 3 % 19khz 34 carrier leak 38khz cl l+r = 180 mv rms , p = 20mv rms 42 db sca rejection ratio sca rej. l+r = 160 mv rms , p = 20mv rms sca = 20mv rms, f sca = 67khz 70 db signal to noise ratio s/n v in = 200mv rms , f = 1khz, r g = 620 ? 74 db input resistance r in 33 k ? v cc = 3.5v 0.3 0.6 v cc = 8.0v 1.2 1.8 output current (pins 8, 9 i out r l = 3.3k ? v cc = 12v 1.4 2.1 ma
a6043 linear integrated circuit unisonic technologies co., ltd 4 www.unisonic.com.tw qw-r110-018.a ? test circuit 1 2 4 6 8 9 7 5 3 + - + - + - + - utc a6043 + - + - + - sg f.c k.f sw1 1 2 c1 10 f r1 1k c2 3.3 f c3 1 f *c4 1000pf r2 9.1k r5 560 l c8 4.7 f c9 4.7 f r r7 3.3k c7 0.015 f r6 3.3k c7 0.015 f c5 1 f c10 100 f led sw3 vco stop 38khz monitor gnd v cc r4 330k sw2 * polystiroll capacitor 19khz 55db 38khz 55db filter r3 4.7k r8 220k 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 written 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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