CXA1842 SONY [Sony Corporation], CXA1842 Datasheet
CXA1842
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CXA1842 Summary of contents
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... Surround and Vocal Cancellation Description The CXA1842S is a bipolar IC which combines 3- mode 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 ...
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... Equivalent Circuit 129 56K 22 AGND GND 32K 64K 80K 129 17 500 5K 18 200 100K —2— (V =10V, Ta=25°C) CC Description Channel L input pin Channel R Time constants for L.P.F. AGND Level detector pin connected with a capacitor 200 CXA1842S ...
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... —3— Description SW is turned ON when this V CC pin is connected to GND AGND Reference voltage (1 AGND Channel R output pin Channel L Power supply GND pin The pin to be connected with a capacitor for time constants of phase shift CXA1842S ...
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... Ta=25°C) CC Min. Typ. Max. Unit O 1.6 3.35 5 — 0.07 0 — 0.07 0.1 O — dBm O O — dBm — O ... indicates “ON”. C12 C15 10µ 10µ C14 10µ CXA1842S ...
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... CXA1842S 0.022µ SW2 SW3 ON ON OFF OFF ON — OFF = GND TH (L) —5— C12 Vcc GND C15 10µ 10µ C14 10µ CXA1842S Lch OUT GND Rch OUT ...
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... VCA (max typ.), and low frequency part is enhanced, to prevent reduction in the acoustic pressure level when vocal cancellation is ON. * Simulated Stereo circuit: Phases in the audio band are divided into two separate orthogonal channels and treated as L+R and L-R signals, and are added and subtracted to produce simulated L and R signals. All-pass network. —6— CXA1842S ...
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... Vin=–40 dBm 20 Vin=–10 dBm 0 –20 –40 10K –10 –20 –30 –40 –60 10K —7— 100 1K Frequency (Hz) Input/Output Characteristic Surround f=50Hz Sur A f=1kHz Sur –50 –40 –30 –20 – Input level (dBm) CXA1842S 10K 2 1 ...
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... SONY CODE EIAJ CODE JEDEC CODE 22PIN SDIP (PLASTIC 1.778 0.5 ± 0.1 + 0.15 0.9 – 0.1 PACKAGE STRUCTURE MOLDING COMPOUND SDIP-22P-01 LEAD TREATMENT SDIP022-P-0300 LEAD MATERIAL PACKAGE WEIGHT —8— CXA1842S 0° to 15° EPOXY RESIN SOLDER PLATING COPPER ALLOY 0.95g ...