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參數(shù)資料
| 型號： | TMPA2156D2 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 0.73W/CH STEREO CLASS-D AUDIO POWER AMPLIFIER |
| 中文描述： | 0.73W/CH立體聲D類音頻功率放大器 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 216K |
| 代理商： | TMPA2156D2 |
Tai-1 Microelectronics
www.taimec.com.tw
Preliminary
TMPA2156D2
Rev.1.0 September 7, 2005
Copyright
2005, Tai-1 Microelectronics Corp.
1
0.73W/CH STEREO CLASS-D AUDIO POWER AMPLIFIER
GENERAL DESCRIPTION
The TMPA2156D2 is a STEREO class-D audio power amplifier
IC. With SE(Single-Ended) configuration, it delivers up to
0.73W/CH power into a 3 ohms load or 0.6W/CH power into a 4
ohm load or 0.33W/CH power into an 8 ohm load. No external
heat-sink is required.
For multiple-input applications, independent gain control and
corner frequency can be implemented by summing the input
sources through resistor ratio and input capacitor values.
Automatic voltage gain control makes the best use of battery.
Analog input signal is converted into digital output which drives
directly to the speaker. High power efficiency is achieved due to
digital output at the load. The audio information is embedded in
PWM
APPLICATIONS
（
Pulse Width Modulation
）
.
Multimedia application includes Cellular Phones, PDAs, 2.1
channel, USB audio. It is also ideal for other portable devices
like Wireless Radios.
FEATURES
2.5V to 6V Single Supply
Up to 0.73W/CH at 5V, 3 ohms
Up to 85% Power Efficiency
Automatic output power control (APC)
2.2mA Quiescent Current at 5V
Less Than 0.2uA Shutdown Current
Popless Power-Up, Shutdown and Recovery
Single-Ended output
Thermal Shutoff and Automatic Recovery
Short-Circuit Protection
Package
TSSOP8, SOP8 Available
For best performance, please refer to
//www.taimec.com.tw/data/Tmpa2155EVM/tmpa2156d2EVM.pdf
for PCB layout.
REFERENCE CIRCUIT
PDF created with pdfFactory trial version
www.pdffactory.com
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