CXA1842S

CXA1842S 3-Mode Surround and Vocal Cancellation Description The CXA1842S is a bipolar IC which combines 3mode surround, bass boosting and vocal cancellation function into a single chip. Features 3-mode surround (surround A, surround B, simulated stereo) Vocal cancellation function Bass boosting function Applications CD Radio-cassette tape recorders, equipment with Karaoke functions Structure Bipolar silicon monolithic IC 22 pin SDIP (Plastic) Absolute Maximum Ratings (Ta=25°C) Supply voltage VCC 14 Operating temperature Topr –20 to +75 Storage temperature Tstg –65 to +150 Allowable power dissipation PD 880 Recommended Operating Conditions Supply voltage VCC 5 to 12 V °C °C mW V Block Diagram and Pin Configuration LPF L1 Lch OUT 12 S4 REF S6 VCA S5 S4 REF 11 LPF L2 LPF L3 DET L DET R Lch IN PSN1 PSN2 GND 22 21 20 19 18 17 16 15 14 13 DET DET S2 S.S VCA S6 REF Vcc S3 VCA DET –6 S5 S1 SW CONT R2 R1 1 Rch IN 2 LPF R1 3 LPF R2 4 LPF R3 5 DET V.C 6 V.C 7 B.B 8 SW1 9 SW2 10 Vcc Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. —1— Rch OUT REF E93702-TE CXA1842S Pin Description Pin No. Symbol ...