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參數資料
| 型號： | TPA2008D2PWPG4 |
| 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： | 1/26頁 |
| 文件大小： | 691K |
| 代理商： | TPA2008D2PWPG4 |
www.ti.com
FEATURES
DESCRIPTION
APPLICATIONS
PO Output Power W
THD+N
T
otal
Harmonic
Distortion
+
Noise
%
0.01
0.1
1
4
20
0.01
0.1
1
10
f = 20 kHz
f = 1 kHz
f = 20 Hz
VDD = 5 V
RL = 3
Gain = 0 dB
TOTAL HARMONIC DISTORTION + NOISE
vs
OUTPUT POWER
0
10
20
30
40
50
60
70
80
90
100
0
0.5
1
1.5
2
2.5
3
3.5
8
Speaker
4
Speaker
3
Speaker
VDD = 5 V
No Filter
Efficiency
%
PO Output Power W
EFFICIENCY
vs
OUTPUT POWER
TPA2008D2
SLOS413C – JULY 2003 – REVISED MAY 2004
3-W STEREO CLASS-D AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL
3 W Per Channel into 3-
Speakers
The TPA2008D2 is a third generation 5-V class-D
(THD+N = 10%)
amplifier from Texas Instruments. Improvements to
previous generation devices include: dc volume con-
– < 0.045% THD at 1.5 W, 1 kHz, 3-
Load
trol, lower supply current, lower noise floor, higher
DC Volume Control With 2-dB Steps From
efficiency, smaller packaging, and fewer external
-38 dB to 20 dB
components. Most notably, a new filter-free class-D
Filter Free Modulation Scheme Operates
modulation technique allows the TPA2008D2 to di-
Without a Large and Expensive LC Output
rectly drive the speakers, without needing a low-pass
output filter consisting of two inductors and three
Filter
capacitors per channel. Eliminating this output filter
Extremely Efficient Third Generation 5-V
saves approximately 30% in system cost and 75% in
Class-D Technology
PCB area.
– Low Supply Current, 7 mA
The improvements and functionality make this device
– Low Shutdown Control, 1 A
ideal for LCD projectors, LCD monitors, powered
– Low Noise Floor, -80 dBV
speakers, and other applications that demand more
battery life, reduced board space, and functionality
– Maximum Efficiency into 3
, 78%
that surpasses currently available class-D devices.
– Maximum Efficiency into 8
, 88%
A chip-level shutdown control limits total supply
– PSRR, -70 dB
current to 1 A, making the device ideal for bat-
Integrated Depop Circuitry
tery-powered applications. Protection circuitry in-
Operating Temperature Range, -40
°C to 85°C
creases device reliability: thermal and short circuit.
Undervoltage shutdown saves battery power for more
Space-Saving, Surface Mount PowerPAD
essential devices when battery voltage drops to low
Package
levels.
The TPA2008D2 is available in a 24-pin TSSOP
PowerPADpackage.
LCD Projectors
LCD Monitors
Powered Speakers
Battery Operated and Space Constrained
Systems
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 2003–2004, 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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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA2008D2PWPR | 功能描述:音頻放大器 Stereo Hi-Pwr 5-V Filter-Free Class-D 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 |
| TPA2008D2PWPRG4 | 功能描述:音頻放大器 Stereo Hi-Pwr 5-V Filter-Free Class-D 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 |
| TPA200RL | 功能描述:TVS 二極管 - 瞬態電壓抑制器 200V 50uA Bidirect RoHS:否 制造商:Vishay Semiconductors 極性:Bidirectional 工作電壓: 擊穿電壓:58.9 V 鉗位電壓:77.4 V 峰值浪涌電流:38.8 A 系列: 封裝 / 箱體:DO-214AB 最小工作溫度:- 55 C 最大工作溫度:+ 150 C |
| TPA2010 | 制造商:TI 功能描述:2.5-W high efficiency filter-free class-D audio power amplifier |
| TPA2010D1 | 制造商:Texas Instruments 功能描述:Audio Amp Mono 2.5W Class-D TPA2010D1 制造商:TI 功能描述:2.5-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER |
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