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TPA0232PWPR PDF预览

TPA0232PWPR

更新时间: 2024-09-20 23:37:11
品牌 Logo 应用领域
其他 - ETC 商用集成电路音频放大器光电二极管
页数 文件大小 规格书
30页 459K
描述
AUDIO AMPLIFIER|DUAL|CMOS|TSSOP|24PIN|PLASTIC

TPA0232PWPR 数据手册

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TPA0232  
STEREO 2-W AUDIO POWER AMPLIFIER  
WITH DC VOLUME CONTROL AND MUX CONTROL  
SLOS286B – NOVEMBER 1999 – REVISED MAY 2001  
PWP PACKAGE  
(TOP VIEW)  
Compatible With PC 99 Desktop Line-Out  
Into 10-kLoad  
Compatible With PC 99 Portable Into 8-Ω  
Load  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
GND  
HP/LINE  
VOLUME  
LOUT+  
LLINEIN  
LHPIN  
GND  
2
RLINEIN  
SHUTDOWN  
ROUT+  
RHPIN  
3
Internal Gain Control, Which Eliminates  
External Gain-Setting Resistors  
4
5
DC Volume Control From 20 dB to –40 dB  
2-W/Ch Output Power Into 3-Load  
Input MUX Select Terminal  
PC-Beep Input  
6
V
DD  
7
PV  
PV  
DD  
DD  
8
RIN  
LOUT–  
LIN  
BYPASS  
GND  
CLK  
9
ROUT–  
SE/BTL  
PC-BEEP  
GND  
10  
11  
12  
Depop Circuitry  
Stereo Input MUX  
Fully Differential Input  
Low Supply Current and Shutdown Current  
Surface-Mount Power Packaging  
24-Pin TSSOP PowerPAD  
description  
The TPA0232 is a stereo audio power amplifier in a 24-pin TSSOP thermally enhanced package capable of  
delivering 2 W of continuous RMS power per channel into 3-loads. This device minimizes the number of  
external components needed, which simplifies the design and frees up board space for other features. When  
driving 1 W into 8-speakers, the TPA0232 has less than 0.4% THD+N across its specified frequency range.  
Included within this device is integrated depop circuitry that virtually eliminates transients that cause noise in  
the speakers.  
Amplifier gain is controlled by means of a dc voltage input on the VOLUME terminal. There are 31 discrete steps  
coveringtherangeof20dB(maximumvolumesetting)to40dB(minimumvolumesetting)in2-dBsteps. When  
the VOLUME terminal exceeds 3.54 V, the device is muted. An internal input MUX allows two sets of stereo  
inputs to the amplifier. The HP/LINE terminal allows the user to select which MUX input is active regardless of  
whether the amplifier is in SE or BTL mode. In notebook applications, where internal speakers are driven as  
BTL and the line outputs (often headphone drive) are required to be SE, the TPA0232 automatically switches  
into SE mode when the SE/BTL input is activated, and this effectively reduces the gain by 6 dB.  
The TPA0232 consumes only 10 mA of supply current during normal operation. A miserly shutdown mode  
reduces the supply current to less than 150 µA.  
The PowerPAD package (PWP) delivers a level of thermal performance that was previously achievable only  
in TO-220-type packages. Thermal impedances of approximately 35°C/W are readily realized in multilayer PCB  
applications. This allows the TPA0232 to operate at full power into 8-loads at ambient temperatures of 85°C.  
AVAILABLE OPTIONS  
PACKAGED DEVICE  
T
A
TSSOP  
(PWP)  
40°C to 85°C  
TPA0232PWP  
The PWP package is available taped and reeled. To order a taped and reeled part,  
add the suffix R to the part number (e.g., TPA0232PWPR).  
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.  
Copyright 2001, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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