TDA2822 LINEAR INTEGRATED CIRCUIT
1
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. DIP-8
PIN CONFIGURATIONS
1
2
3
4
8
7
6
5
NF 1
INPUT 1
INPUT 2
NF 2GND
Vcc
OUTPUT 1
OUTPUT 2
BLOCK DIAGRAM
7
8
6
5
4
3
1
2
OUTPUT1
OUTPUT2
VCC
INPUT1
NP1
INPUT2
NP2
GND
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
Contek
Contek
TDA2822
TDA2822 LINEAR INTEGRATED CIRCUIT
2
ABSOLUTE MAXIMUM RATINGS(Ta=25 C)
PARAMETER SYMBOL VALUE UNIT
Supply Voltage VCC 15 V
Output Peak Current IO(peak) 1 A
Power Dissipation PDat T amb=50 C 1.0
at T case=50 C 1.4
W
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 AVStereo 40 dB
Closed Loop Voltage Gain AVBridge 40 dB
Channel Balance CB Stereo -1 0 1 dB
Output Power POStereo,VCC=6V,RL=4W,
THD=10%
0.4 0.65 W
Output Power POStereo,VCC=3V,RL=4W,
THD=10%
0.11 W
Output Power POBridge,VCC=6V,RL=4W,
THD=10%
0.9 1.35 W
Output Power POBridge,VCC=6V,RL=4W,
THD=10%
0.35 W
Total Harmonic Distortion THD Stereo,RL=8W, Po=0.2W 0.5 %
Total Harmonic Distortion THD Bridge,RL=8W, Po=0.5W 0.5 %
Ripple Rejection RR Stereo,f=100Hz,C3=100mF24 30 dB
Output Noise Voltage VNO Stereo,BW(-3dB)=20Hz ~20kHz 0.5 2.0 mV
Cross Talk CT Stereo,f=1kHz 50 dB
Input Resistance Ri100 kW
TEST CIRCUIT 1:STEREO TEST CIRCUIT 2:BRIDGE
INPUT1
INPUT2
R1
10kW
C1
100 mF
RL
C6
0.1 mF
R3
4.7W
R4
4.7W
C7
0.1 mFRL
C5
470 mF
R2
10kW
C2
100 mF
C3
100 mF
VCC
C4
470 mF
1
2
3
4
5
6
7
8
INPUT1
R1
10kWRL
C2
0.1 mF
R2
4.7W
R3
4.7W
C3
0.1 mF
C5
100 mF
VCC
C4 0.01 mF
C1
10 mF
1
2
3
4
5
6
7
8
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
Contek Contek
TDA2822 LINEAR INTEGRATED CIRCUIT
3
TYPICAL PERFORMANCE CHARACTERISTICS
40
30
20
10
0
10 10030 300 1000 3000
FREQUENCY (Hz)
04 81216
SUPPLY VOLTAGE (V)
2
4
6
8
QUIESCENT CURRENT (mA)
RIPPLE REJECTION (dB)
C1=C2
=100 mF
C1=C2
=22 mF
SCHEMATIC DIAGRAM
3
2
Vcc
OUT 2
456
INPUT 2 NF 2 GND
Vcc
1
OUT 1
8 7
INPUT 1NF 1
Vcc
I source
CONTROL
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
Contek
