? 1 ? pe02965-ps sony reserves the right to change products and specifications without prior notice. this information does not convey any licens e by any implication or otherwise under any patents or other right. application circuits shown, if any, are typical examples illustr ating the operation of the devices. sony cannot assume responsibility for any problems arising out of the use of these circuits. CXA2202M 28 pin sop (plastic) preliminary eiaj sound multiplexing decoder description the CXA2202M, is a bipolar ic designed as eiaj tv sound multiplexing decoder, provides various functions including sound multiplexing demodulation, broadcast mode identification (stereo/bilingual discrimination display), mode display, and muting. features ? adjustment free of filter high frequency stereo separation improved an internal active filter greatly reduces the external parts use of the countdown method for broadcast mode identification eliminates the necessity of adjusting the identification system (cue oscillator) internal filter eliminates interference from digital facsimile signals the discrimination time needed to shift from multiplexing sound to monaural sound is reduced. output level: 520mvrms (1khz, monaural, 100%) forced monaural mode can be set to operate only for stereo broadcasts or for stereo/bilingual broadcasts. applications color tvs hi-fi vcrs pin configuration structure bipolar silicon monolithic ic absolute maximum ratings (ta = 25c) supply voltage vcc 10 v input signal (pin 7) vis 0.6 vp-p control voltage (pins 6, 16, 17, 18) vic vcc v operating temperature topr ?20 to +75 c storage temperature tstg ?65 to +150 c allowable power dissipation p d 1000 mw led drive current i led 10 ma operating supply voltage range 8.5 to 9.5 v 28 subi 27 nc 26 sc out 25 sc in 24 nc 23 mc out 22 mc in 21 l out 20 r out 19 m out 18 fomo 17 mute 16 mode 15 nc 1 gnd 2 nc 3 refl 4 vcc 5 nc 6 mo mode 7 mpx in 8 nc 9 cubi 10 nc 11 ledst 12 ledsu 13 ledm 14 nc
? 2 ? CXA2202M block diagram 28 subi 27 nc 26 sc out 25 sc in 24 nc 23 mc out 22 mc in 21 l out 20 r out 19 m out 18 fomo 17 mute 16 mode 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 nc gnd nc refl vcc nc mo mode mpx in nc cubi nc ledst ledsu ledm nc subdeem maindeem fm demod buffer bias current bias voltage ibias voltage regulator in amp mpx signal 4.5f h trap 3.5f h vco 3.5f h clock 952hz clock cue bpf am demod 952hz bpf comp led drive test main sub lr output amp & output sw main out matrix iil logic & cont sub det sub bpf cue carrier
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