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参数资料
| 型号： | TPA0122PWPR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24 |
| 封装： | GREEN, PLASTIC, HTSSOP-24 |
| 文件页数： | 1/33页 |
| 文件大小： | 688K |
| 代理商： | TPA0122PWPR |
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GND
GAIN0
GAIN1
LOUT+
LLINEIN
LHPIN
PVDD
RIN
LOUT–
LIN
BYPASS
GND
RLINEIN
SHUTDOWN
ROUT+
RHPIN
VDD
PVDD
PCB ENABLE
ROUT–
SE/BTL
PC-BEEP
GND
PWP PACKAGE
(TOP VIEW)
DESCRIPTION
TPA0122
SLOS247C – JUNE 1999 – REVISED SEPTEMBER 2004
2.6-W STEREO AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS
Compatible With PC 99 Desktop Line-Out Into
10-k
Load
Compatible With PC 99 Portable Into 8-
Load
Internal Gain Control, Which Eliminates
External Gain-Setting Resistors
2.6-W/Ch Output Power Into 3-
Load
PC-Beep Input
Depop Circuitry
Stereo Input MUX
Fully Differential Input
Low Supply Current and Shutdown Current
Surface-Mount Power Packaging 24-Pin
TSSOP PowerPAD
The TPA0122 is a stereo audio power amplifier in a 24-pin TSSOP thermally enhanced package capable of
delivering 2.6 W of continuous RMS power per channel into 3-
loads. This device minimizes the number of
external components needed, simplifying the design, and freeing up board space for other features. When driving
1 W into 8-
speakers, the TPA0122 has less than 0.5% 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 internally configured and controlled by two terminals (GAIN0 and GAIN1). BTL gain settings of 2,
6, 12, and 24 V/V are provided, while SE gain is always configured as 1 V/V for headphone drive. An internal
input MUX allows two sets of stereo inputs to the amplifier. In notebook applications, where internal speakers are
driven as BTL and the line outputs (often headphone drive) are required to be SE, the TPA0122 automatically
switches into SE mode when the SE/BTL input is activated and reduces the gain to 1 V/V.
The TPA0122 consumes only 18 mA of supply current during normal operation. A miserly shutdown mode
reduces the supply current to less than 150 A.
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 truly realized in multilayer PCB
applications. This allows the TPA0122 to operate at full power into 8-
loads at an ambient temperature of 85°C.
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 1999–2004, 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPA0122PWPRG4 | 功能描述:音频放大器 2W Stereo APA With Int Gain Settings RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TPA0132 | 制造商:TI 制造商全称:Texas Instruments 功能描述:2-W STEREO AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL |
| TPA0132EVM | 功能描述:音频 IC 开发工具 TPA0132 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| TPA0132PWP | 功能描述:音频放大器 2W Stereo A RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TPA0132PWPG4 | 功能描述:音频放大器 2W Stereo APA With DC Volume Control RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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