cxa1842s Sony Electronics, cxa1842s Datasheet

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cxa1842s

Manufacturer Part Number
cxa1842s
Description
3-mode Surround And Vocal Cancellation
Manufacturer
Sony Electronics
Datasheet

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Part Number
Manufacturer
Quantity
Price
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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cxa1842s 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

... DET L Equivalent Circuit 129 56K 22 AGND GND 32K 64K 80K AGND 129 500 5K 200 100K —2— CXA1842S (V =10V, Ta=25°C) CC Description Channel L input pin Channel R Time constants for L.P.F. Level detector pin connected with a capacitor 200 ...

Page 3

... AGND 48K GND V CC 297 11 129 297 —3— CXA1842S Description SW is turned ON when this CC pin is connected to GND Reference voltage (1 Channel R output pin Channel L Power supply GND pin The pin to be connected with a capacitor for time constants of phase shift ...

Page 4

... O Vin=2Vrms, f=1kHz O Vin=GND O O Vin=2Vrms, f=1kHz O C6 0.022µ 0.022µ —4— CXA1842S (V =10V, Ta=25°C) CC Min. Typ. Max. Unit O 1.6 3.35 5 — 0.07 ...

Page 5

... TH TH (H) CC GND C6 0.022µ CXA1842S 0.022µ SW2 SW3 ON ON OFF OFF ON — OFF = GND TH (L) —5— CXA1842S C12 Vcc C15 10µ 10µ Lch OUT GND Rch OUT C14 10µ ...

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 –50 10K —7— CXA1842S 100 1K 10K Frequency (Hz) Input/Output Characteristic Surround f=50Hz Sur A f=1kHz Sur –40 –30 –20 – Input level (dBm) ...

Page 8

... SONY CODE EIAJ CODE JEDEC CODE 22PIN SDIP (PLASTIC 1.778 + 0.15 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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