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參數資料
| 型號： | TPA032D01DCARG4 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 10-W MONO CLASS-D AUDIO POWER AMPLIFIER |
| 中文描述： | 10單聲道D類音頻功率放大器 |
| 文件頁數： | 17/25頁 |
| 文件大?。?/td> | 550K |
| 代理商： | TPA032D01DCARG4 |
SLOS282B DECEMBER 1999 REVISED JUNE 2000
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
class-D effect on power supply (continued)
There is a minor power supply savings with a class-D amplifier versus a linear amplifier when amplifying sine
waves. The difference is much larger when the amplifier is used strictly for music. This is because music has
much lower RMS output power levels, given the same peak output power (see Figure 10); and although linear
devices are relatively efficient at high RMS output levels, they are very inefficient at mid-to-low RMS power
levels. The standard method of comparing the peak power to RMS power for a given signal is crest factor, whose
equation is shown below. The lower RMS power for a set peak power results in a higher crest factor
Crest Factor
10 logP
PK
P
rms
Time
PPK
P
PRMS
Figure 10. Audio Signal Showing Peak and RMS Power
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA032D01EVM | 制造商:Texas Instruments 功能描述:MONO CLASS-D AUDIO POWER AMPLIFIER EVM - Bulk |
| TPA032D02 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA032D02_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA032D02DCA | 功能描述:音頻放大器 10W 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 |
| TPA032D02DCAG4 | 功能描述:音頻放大器 Stereo Medium Power Class-D Audio Amp 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 |
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