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參數資料
| 型號： | TPA0142PWP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24 |
| 封裝： | GREEN, PLASTIC, HTSSOP-24 |
| 文件頁數： | 1/35頁 |
| 文件大小： | 804K |
| 代理商： | TPA0142PWP |
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GND
PCB ENABLE
VOLUME
LOUT+
LLINEIN
LHPIN
PVDD
RIN
LOUT–
LIN
BYPASS
GND
RLINEIN
SHUTDOWN
ROUT+
RHPIN
VDD
PVDD
CLK
ROUT–
SE/BTL
PC-BEEP
GND
PWP PACKAGE
(TOP VIEW)
TPA0142
SLOS248E – JUNE 1999 – REVISED SEPTEMBER 2004
2.8-W STEREO AUDIO POWER AMPLIFIER
WITH DC VOLUME CONTROL
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
DC Volume Control From 20 dB to -40 dB
2.8-W/Ch Output Power Into a 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
DESCRIPTION
The TPA0142 is a stereo audio power amplifier in a 24-pin TSSOP thermally enhanced package capable of
delivering 2.8 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 TPA0142 has less than 0.22% 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 a dc voltage input on the VOLUME terminal. There are 31 discrete steps covering
the range of 20 dB (maximum volume setting) to -40 dB (minimum volume setting) in 2-dB steps. 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. In notebook applications, where internal speakers are driven as bridge-tied load (BTL) and the line
outputs (often headphone drive) are required to be single-ended (SE), the TPA0142 automatically switches into
SE mode when the SE/BTL input is activated, and this effectively reduces the gain by 6 dB.
The TPA0142 consumes only 20 mA of supply current during normal operation. A shutdown mode reduces the
supply current to 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 TPA0142 to operate at full power into 8-
loads at ambient temperatures 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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| TPA0152PWPR | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24 |
| TPA0152PWP | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA0142PWPG4 | 功能描述:音頻放大器 2W Stereo APA With DC Volume Control RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA0142PWPR | 功能描述:音頻放大器 2W Stereo APA With DC Volume Control RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA0142PWPRG4 | 功能描述:音頻放大器 2W Stereo APA With DC Volume Control RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA0152 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-W STEREO AUDIO POWER AMPLIFIER WITH DIGITAL VOLUME CONTROL |
| TPA0152EVM | 功能描述:音頻 IC 開發工具 TPA0152 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
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