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TDA2822 LINEAR INTEGRATED CIRCUIT
DUAL LOW VOLTAGE POWER
AMPLIFIER
DESCRIPTION
The Contek TDA2822 is a monolithic integrated audio amplifier
in a 8-Pin plastic dual in line package. It is designed for
portable cassette players and radios.
FEATURES
*Wide operating supply voltage:Vcc=1.8V- 12V.
*Low crossover distortion.
*Low quiescent circuit current.
*bridge/stereo configuration.
PIN CONFIGURATIONS
DIP-8
BLOCK DIAGRAM
OUTPUT 1
Vcc
OUTPUT 2
INPUT1
NP1
INPUT2
NP2
7
8
6
5
Contek
1
2
3
4
Contek
TDA2822
CC
V
2
4
GND
8
7
6
5
1
3
NF 1
INPUT 1
INPUT 2
NF 2GND
OUTPUT1
OUTPUT2
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
1
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TDA2822 LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS(Ta=25 C)
PARAMETER SYMBOL VALUE UNIT
Supply Voltage VCC 15 V
Output Peak Current IO(peak) 1 A
Power Dissipation PD at T amb=50 C 1.0
at T
case=50 C 1.4
Operating Temperature Topr -20 ~ +70 C
Storage Temperature Tstg -40 ~ +150 C
ELECTRICAL CHARACTERISTICS(Ta=25 C, VCC=6V, f=1kHz, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Operating Supply Voltage VCC 1.8 9 V
Quiescent Circuit Current ICC Vi=0 9 mA
Closed Loop Voltage Gain AV Stereo 40 dB
Closed Loop Voltage Gain AV Bridge 40 dB
Channel Balance CB Stereo -1 0 1 dB
Output Power PO
Stereo,VCC=6V,RL=4W,
THD=10%
Output Power PO
Stereo,VCC=3V,RL=4W,
THD=10%
Output Power PO
Bridge,VCC=6V,R L=4W,
THD=10%
Output Power PO
Bridge,VCC=6V,R L=4W,
THD=10%
Total Harmonic Distortion THD
Total Harmonic Distortion THD
Ripple Rejection RR
Stereo,f=100Hz,C3=100mF
Stereo,R
Bridge,R
L=8W, Po=0.2W
L=8W, Po=0.5W
Output Noise Voltage VNO Stereo,BW(-3dB)=20Hz ~20kHz 0.5 2.0 mV
Cross Talk CT Stereo,f=1kHz 50 dB
Input Resistance Ri 100
0.4 0.65 W
0.11 W
0.9 1.35 W
0.35 W
0.5 %
0.5 %
24 30 dB
W
kW
TEST CIRCUIT 1:STEREO TEST CIRCUIT 2:BRIDGE
VCC
INPUT1
INPUT2
C3
100 mF
2
7
100 mF
100 mF
8
C1
Contek
6
5
C2
4
R1
10kW
R2
10kW
C4
470 mF
1
C6
0.1 mF
R3
4.7W
C5
470 mF
3
C7
0.1 mF
R4
4.7W
INPUT1
R1
RL
RL
10kW
7
6
C5
100 mF
Contek
Contek Microelectronics Co.,Ltd.
CONTEK
http://www.contek-ic.com E-mail:sales@contek-ic.com
VCC
2
1
8
3
5
C4 0.01 mF
4
C2
0.1 mF
RL
R2
4.7W
C1
10 mF
C3
0.1 mF
R3
4.7W
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TDA2822 LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
8
0
6
4
2
QUIESCENT CURRENT (mA)
10
20
30
RIPPLE REJECTION (dB)
40
C1=C2
=100 mF
C1=C2
=22 mF
04 81216
SUPPLY VOLTAGE (V)
SCHEMATIC DIAGRAM
Contek
Vcc
1
OUT 1
8 7
INPUT 1NF 1
10 10030 300 1000 3000
FREQUENCY (Hz)
2
Vcc
I source
CONTROL
Vcc
3
OUT 2
456
INPUT 2 NF 2 GND
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
3
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