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TPA6010A4_07

更新时间： 2024-11-18 03:58:47
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德州仪器 - TI 放大器功率放大器
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25页 667K
描述
STEREO 2.7-W AUDIO POWER AMPLIFIER WITH BASS BOOST AND DC VOLUME CONTROL

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TPA6010A4_07 数据手册

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TPA6010A4  
www.ti.com  
SLOS268B–JUNE 2000–REVISED AUGUST 2004  
STEREO 2.7-W AUDIO POWER AMPLIFIER WITH BASS BOOST AND  
DC VOLUME CONTROL  
FEATURES  
PWP PACKAGE  
(TOP VIEW)  
•
Compatible With PC 99 Desktop Line-Out Into  
10-kΩ Load  
1
28  
GND  
LOUT+  
CLK  
LDOCKOUT  
•
•
Compatible With PC 99 Portable Into 8-Ω Load  
2
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
LOUT−  
BBENABLE  
BYPASS  
LIN  
Internal Gain Control, Which Eliminates  
External Gain-Setting Resistors  
3
4
PV  
DD  
•
DC Volume and Gain Control Adjustable From  
34 dB to -86 dB  
5
BUFFGAIN  
VOLUME  
V
DD  
BBIN  
BBOUT  
6
LHPIN  
7
LLINEIN  
PC-BEEP  
RLINEIN  
RHPIN  
•
•
•
•
•
•
•
•
•
Bass Boost  
8
Buffered Docking Station Outputs  
2.7-W/Ch Output Power Into 3-Ω Load  
PC-Beep Input  
9
10  
11  
12  
13  
14  
PV  
DD  
RIN  
RDOCKOUT  
SE/BTL  
ROUT+  
GND  
SHUTDOWN  
HP/LINE  
ROUT−  
Depop Circuitry  
Stereo Input MUX  
Fully Differential Input  
Low Supply Current and Shutdown Current  
Surface-Mount Power Packaging 28-Pin  
TSSOP PowerPAD™  
DESCRIPTION  
The TPA6010A4 is a stereo audio power amplifier in a 28-pin TSSOP thermally enhanced package capable of  
delivering 2.7 W of continuous RMS output power into 3-Ω loads. When driving 1 W into 8-Ω speakers, the  
TPA6010A4 has less than 0.22% THD+N across its specified frequency range.  
The TPA6010A4 has several features optimized for notebook PCs including bass boost, docking station outputs,  
dc volume control, and dc gain control.  
The TPA6010A4 has a buffer and volume control gain stage that are set by dc voltages. The buffer has a  
differential input and a differential output. The gain of the buffer, which is controlled by the dc voltage on the  
BUFFGAIN terminal, is adjustable from -46 dB to 14 dB. The docking station output is 6 dB lower than the buffer  
gain because the buffer has a differential output and the docking station output is taken from just one of the  
buffer outputs. The volume control amplifier is adjustable from -34 dB to 20 dB in BTL mode and is 6 dB lower in  
SE mode. The volume control stage is adjustable by dc voltage on the VOLUME terminal. The amplifier gain  
from input-to-speaker is the sum of the volume control and the buffer gain. The input-to-speaker gain is  
adjustable from -86 dB to 34 dB in BTL mode and -92 dB to 28 dB in the SE mode.  
The bass boost of the amplifier sums the right and left inputs, adds gain, filters out the high frequencies, and  
then adds the bass boost signal back into the output power amplifier. The frequency of the bass boost is  
adjusted by adding an RC filter from BBOUT to BBIN. The gain of the bass boost is set to 12 dB if the same  
bass is present in both the right and left channels. If the bass is present in just one of the channels, the gain of  
the bass is set to 9.5 dB. The gain can be reduced by adding a voltage divider from BBIN to BBOUT. If not using  
the bass boost, pull the BBENABLE pin low.  
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.  
PowerPAD is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2000–2004, 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.  
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