CXA1842 SONY [Sony Corporation], CXA1842 Datasheet

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CXA1842

Manufacturer Part Number
CXA1842
Description
3-Mode Surround and Vocal Cancellation
Manufacturer
SONY [Sony Corporation]
Datasheet

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Part Number
Manufacturer
Quantity
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Part Number:
CXA1842S
Manufacturer:
SONY
Quantity:
3 800
Block Diagram and Pin Configuration
Description
mode surround, bass boosting and vocal
cancellation function into a single chip.
Features
• 3-mode surround (surround A, surround B,
• Vocal cancellation function
• Bass boosting function
Applications
Karaoke functions
Structure
The CXA1842S is a bipolar IC which combines 3-
simulated stereo)
CD Radio-cassette tape recorders, equipment with
Bipolar silicon monolithic IC
3-Mode Surround and Vocal Cancellation
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.
22
1
21
2
20
3
REF
REF
19
4
DET
VCA
18
5
DET
DET
VCA
VCA
—1—
S6
–6
S6
17
6
Absolute Maximum Ratings (Ta=25°C)
• Supply voltage
• Operating temperature
• Storage temperature
• Allowable power dissipation
Recommended Operating Conditions
S1
Supply voltage
16
7
S2
S.S
CXA1842S
S3
15
8
22 pin SDIP (Plastic)
SW CONT
S5
S5
14
9
V
Topr
Tstg
P
V
CC
D
CC
Vcc
R2
R1
13
10
S4
–65 to +150
S4
–20 to +75
5 to 12
880
REF
14
12
11
E93702-TE
mW
°C
°C
V
V

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CXA1842 Summary of contents

Page 1

... 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 ...

Page 2

... 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 ...

Page 3

... —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 ...

Page 4

... 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 ...

Page 5

... 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 ...

Page 6

... 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 ...

Page 7

... 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 ...

Page 8

... 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 ...

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