TEA2025 LINEAR INTEGRATED CIRCUIT
STEREO AUDIO AMPLIFIER
DESCRIPTION
The Contek TEA2025 is a monolithic integrated audio
amplifier in a 16-pin plastic dual in line package. It is designed
for portable cassette players and radios.
FEATURES
*Working Voltage down to 3V
*Few External components
*High Channel isolation
*Voltage gain up to 45dB(Adjustable with external resistor)
*Soft clipping
*Internal Thermal protection
PIN CONFIGURATIONS
DIP-16
BLOCK DIAGRAM
THERMAL
PROTECTION
CIRCUIT
8
7
Contek
50W
50W
1
2
3
4
5
6
7
Contek
TEA2025
DECOUPLING
BRIDGE
OUT.2
BOOT.2
GND
GND
FEEDBACK
IN.2 (+)
9 10 11 12 13 14 15
START
10kW
10kW
16
+Vs
15
OUT.1
14
BOOT.1
13
GND
12
GND
11
FEEDBACK
10
IN.1 (+)
98
GND (sub)SVR
4
2356
5kW
50W
16
1
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
1
TEA2025 LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL VALUE UNIT
Supply Voltage VS 15 V
Output Peak Current IO 1.5 A
Junction Temperature Tj 150 C
Storage Temperature Tstg -40 ~ +150 C
ELECTRICAL CHARACTERISTICS(Ta=25 C,VCC =9V,Stereo,Unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Supply Voltage VS 312V
Quiescent Current IQ 40 50 mA
Quiescent output voltage VO 4.5 V
Voltage gain AV Stereo 43 45 47 dB
Bridge 49 51 53
Voltage gain difference DAV +-1 dB
Input impedance Ri 30 kW
f=1kHz;d=10%
Stereo per channel
V
CC=9V;RL=4W
L=8W
R
Output Power PO VCC=6V;RL=4W
Distortion d
Supply voltage Rejection SVR
Input noise Voltage Vn
Cross-Talk C.T. RG=10kW;
R
L=8W
VCC=3V;RL=4W 0.1
Bridge
CC=9V;RL=8W
V
VCC=6V;RL=4W 2.8
CC=9V;RL=4W
V
f=1kHz;P
Vripple=150mVRMS
O=250mW
Stereo 0.3 1.5 %
Bridge 0.5
G=0;AV=45dB
R
Fripple=100Hz
V=200
A
Bandwidth:
20Hz to 20kHz
R
G=0
R
G=10kW
f=1kHz;R
O=1W
P
L=4W
1.7 2.3
1.3
0.7 1
0.6 W
4.7
40 46 dB
1.5
40 55 dB
3
3
6
mV
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
2
Loading...