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TPA6021A4

更新时间： 2024-11-03 22:42:03
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
26页 1772K
描述
2-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL

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TPA6021A4 数据手册

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TPA6021A4  
www.ti.com  
SLOS465–JUNE 2005  
2-W STEREO AUDIO POWER AMPLIFIER  
WITH ADVANCED DC VOLUME CONTROL  
FEATURES  
DESCRIPTION  
•
2 W Into 4-Ω Speakers With External Heatsink  
The TPA6021A4 is a stereo audio power amplifier  
that drives 2 W/channel of continuous RMS power  
into a 4-Ω load when utilizing a heat sink. Advanced  
dc volume control minimizes external components  
and allows BTL (speaker) volume control and SE  
(headphone) volume control.  
•
DC Volume Control With 2-dB  
Steps from -40 dB to 20 dB  
– Fade Mode  
– -85-dB Mute Mode  
Differential Inputs  
•
•
•
The 20-pin DIP package allows for the use of a  
heatsink which provides higher output power.  
1-µA Shutdown Current (Typical)  
Headphone Mode  
To ensure a smooth transition between active and  
shutdown modes, a fade mode ramps the volume up  
and down.  
APPLICATIONS  
•
LCD Monitors  
Right  
DC VOLUME CONTROL  
Speaker  
30  
20  
10  
V
20  
DD  
ROUT+  
C
O
1
330 mF  
PGND  
19  
100 kW  
SE/BTL  
2
ROUT-  
C
BTL Volume  
S
0
100 kW  
0.47 mF  
10 mF  
1 kW  
3
-10  
Power Supply  
PV  
DD  
In From DAC  
or  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
18  
C
VOLUME  
i
4
0.47 mF  
Right Positive  
Potentiometer  
(DC Voltage)  
RIN+  
Differential Input Signal  
C
5
i
0.47 mF  
Right Negative  
RIN-  
17  
Differential Input Signal  
AGND  
C
(BYP)  
V
DD  
0.47 mF  
16  
Headphones  
6
BYPASS  
V
DD  
0.47 mF  
15  
7
C
i
FADE  
0.47 mF  
Left Negative  
LIN-  
1 kW  
Differential Input Signal  
C
O
0
0.5  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
5
330 mF  
Volume [Pin 18] - V  
14  
System  
C
Left Positive  
i
8
0.47 mF  
SHUTDOWN  
LIN+  
Control  
Differential Input Signal  
13  
V
DD  
NC  
9
12  
PV  
Power Supply  
DD  
Left  
LOUT+  
Speaker  
10  
11  
LOUT-  
PGND  
0.47 mF  
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2005, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...26

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TPA6021A4 替代型号

型号 品牌 替代类型 描述 数据表
TPA6030A4 TI

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