TEA2025B [TGS]
STEREO AUDIO AMPLIFIER; 立体声音频放大器
| 型号： | TEA2025B |
| 厂家： | 
Tiger Electronic Co.,Ltd |
| 描述： | STEREO AUDIO AMPLIFIER |
| 文件： | 总4页 (文件大小：212K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TIGER ELECTRONIC CO.,LTD
STEREO AUDIO AMPLIFIER
TEA2025
DESCRIPTION
Outline Drawing
Unit:mm
The is a monolithic integrated
TEA2025
audio amplifier in a 16-pin plastic dual in
line package. It is designed for portable
cassette players and radios.
T E A 2025
FEATURE
ꢀ
ꢀ
ꢀ
ꢀ
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
BLOCK DIAGRAM
PIN CONNECTION
14
10
11
50
12
13
15
9
16
Bridge
Out-2
Boot-2
GND
Vcc
1
15
14
Out-1
Boot-1
GND
2
3
THERMAL
PROTECT
_
10K
+
START
CIRCUIT
13
4
5
6
5K
TEA2025
GND
12
11
GND
8
7
DECOUPLING
10K
16
1
+
FeedBack-1
50
2
Feedback-2
_
IN-1(+)
IN-2(+)
SVR
7
8
10
9
50
GND(Sub)
6
3
4
5
1/4
T E A 2025
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
Characteristic
Symbol
Value
16.5
Unit
V
Supply Voltage
Vcc
Io
Output Peak Current
Iunction Temperature
Storage Temperature
1.5
A
Tj
150
°C
°C
Tstg
-40~150
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified: Ta=25°C, Vcc=9V; Dual Mode)
Characteristics
Supply Voltage
Test conditions
Symbol Min. Typ. Max. Unit
Vcc
3
12
V
Quiescent Current
IQ
40
50 mA
V
Quiescent Output
Current
Vo
4.5
Dual Mode
BTL Mode
43
49
45
51
47
dB
53
Voltage Gain
Gv
Voltage Gain
Difference
dB
∆Gv
±1
Input Impedance
Ri
30
kΩ
1.7 2.3
1.3
RL=4Ω
RL=8Ω
RL=4Ω
RL=8Ω
Vcc=9V
Dual Mode per
channel
0.7
1
Vcc=6V
Output Power
(f=1kHz; d=10%)
Po
W
0.6
0.1
4.7
2.8
Vcc=3V; RL=4Ω
Vcc=9V; RL=8Ω
Vcc=6V; RL=4Ω
Dual Mode
BTL Mode
0.3 1.5
0.5
Vcc=9V; RL=4Ω
f=1kHz; Po=250mW
Distortion
d
%
BTL Mode
Supply Voltage
Rejection
RG=0; Vripple=150mVrms
Av=45dB; fripple=100Hz
SVR
Vn
40
40
46
dB
µV
dB
RG=0
1.5
3
3
6
Input Noise
Voltage
Av=200 Bandwidth
20Hz to 20kHz
RG=10kΩ
RG=10kΩ; f=1kHz;
RL=4Ω; Po=1W
Cross-Talk
C.T.
55
2/4
T E A 2025
THERMAL CHARACTERISTICS
Characteristic
Symbol
Rth(j-c)
Rth(j-a)
Value
15
Unit
°C/W
°C/W
Junction-case thermal resistance
Junction-ambient thermal resistance(see Note)
60
Note :The Rth(j-a) is measured on devices bonded on a 10×5×0.15 cm glass-epoxy
substrate with a 35µm thick copper surface of 5cm 2
TEST CIRCUIT
1. Dual Mode Circuit
T E A 2025
2. BTL Mode Circuit
T E A 2025
3/4
T E A 2025
CHARACTERISTICS CURVES
4/4
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