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TPA6102A2_14

更新时间： 2024-02-23 04:35:46
品牌 Logo 应用领域
德州仪器 - TI 放大器功率放大器
页数 文件大小 规格书
22页 752K
描述
50-mW ULTRALOW-VOLTAGE, FIXED-GAIN STEREO HEADPHONE AUDIO POWER AMPLIFIER

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TPA6102A2_14 数据手册

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SLOS324B − JUNE 2000 − REVISED SEPTEMBER 2004  
D or DGK PACKAGE  
(TOP VIEW)  
D
D
D
D
D
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D
D
50-mW Stereo Output  
Low Supply Current . . . 0.75 mA  
Low Shutdown Current . . . 50 nA  
BYPASS  
GND  
IN1−  
1
2
3
4
8
7
6
5
V 1  
Minimal External Components Required  
Gain Set Internally to 14 dB  
O
SHUTDOWN  
IN2−  
V
DD  
V 2  
O
Pop Reduction Circuitry  
Internal Mid-Rail Generation  
Thermal and Short-Circuit Protection  
Surface-Mount Packaging  
− MSOP  
− SOIC  
D
1.6-V to 3.6-V Supply Voltage Range  
description  
The TPA6102A2 is a stereo audio power amplifier packaged in either an 8-pin SOIC package or an 8-pin MOSP  
package capable of delivering 50 mW of continuous RMS power per channel into 16-Ω loads. Amplifier gain  
is internally set to 14 dB (inverting) to save board space by eliminating six external resistors.  
The TPA6102A2 is optimized for battery applications because of its low-supply current, shutdown current, and  
THD+N. To obtain the low-supply voltage range, the TPA6102A2 biases BYPASS to V /4.  
DD  
When driving a 16-Ω load with 40-mW output power from 3.3 V, THD+N is 0.08% at 1 kHz, and less than 0.2%  
across the audio band of 20 Hz to 20 kHz. For 30 mW into 32-Ω loads, the THD+N is reduced to less than 0.06%  
at 1 kHz, and is less than 0.3% across the audio band of 20 Hz to 20 kHz.  
typical application circuit  
V
V
6
7
DD  
V
DD  
100 kΩ  
20 kΩ  
C
S
Audio  
Input  
V
/4  
DD  
IN1−  
8
1
1
O
−
+
C
100 kΩ  
I
C
C
BYPASS  
C
B
Audio  
Input  
20 kΩ  
IN2−  
4
3
V
O
2
5
2
−
+
C
I
C
C
100 kΩ  
From Shutdown  
Control Circuit  
SHUTDOWN  
Bias  
Control  
100 kΩ  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
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Copyright 2004, Texas Instruments Incorporated  
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ꢢ ꢦ ꢣ ꢢꢜ ꢝꢰ ꢟꢞ ꢡ ꢩꢩ ꢧꢡ ꢠ ꢡ ꢉ ꢦ ꢢ ꢦ ꢠ ꢣ ꢫ  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...22

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