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參數(shù)資料
| 型號： | TPA3101D2PHPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封裝： | 7 X 7 MM, GREEN, PLASTIC, HTQFP-48 |
| 文件頁數(shù)： | 13/41頁 |
| 文件大?。?/td> | 1073K |
| 代理商： | TPA3101D2PHPG4 |
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0
f Frequency Hz
10
20
30
40
50
60
70
30M
230M
430M
630M
830M
LimitLevel
dB(
V
in)
m
NationalTechnicalSystems,PlanoTx
RadiatedEmissions30MHz-1000MHz
FCCBLimits
FCCBLimit
PeakdB
-10
SLOS473C – DECEMBER 2005 – REVISED SEPTEMBER 2007
www.ti.com
Using the LC filter in Figure 27, the TPA3101D2 EVM passed the FCC Part 15 Class B radiated emissions test
with 21 inch speaker wires. Quasi-peak measurements were taken for the 4 standard test configurations, and the
TPA3101D2 EVM passed with at least 14-dB margin. A plot of the peak measurement for the horizontal rear
configuration is shown in Figure 30.
Figure 30. Radiated Emissions Prescan 30 MHz - 1000 MHz
Inductors used in LC filters must be chosen carefully. A significant change in inductance at the peak output
current of the TPA3101D2 will cause increased distortion. The change of inductance at currents up to the peak
output current must be less than 0.1 mH per amp to avoid this. Also note that smaller inductors than 33 mH may
cause an increase in distortion above what is shown in preceding graphs of THD versus frequency and output
power.
Capacitors used in LC filters must also be chosen carefully. A significant change in capacitance at the peak
output voltage of the TPA3101D2 will cause increased distortion. LC filter capacitors should have DC-voltage
ratings of at least twice the peak application voltage (the power supply voltage) and should be made of X5R or
better material. In all cases, avoid using capacitors with loose temperature ratings like Y5V.
20
Copyright 2005–2007, Texas Instruments Incorporated
Product Folder Link(s): TPA3101D2
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相關(guān)代理商/技術(shù)參數(shù) |
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| TPA3101D2PHPR | 功能描述:音頻放大器 10-W Stereo Class-D Aud Power Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3101D2PHPRG4 | 功能描述:音頻放大器 10-W Stereo Class-D Aud Power Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3101D2RGZR | 功能描述:音頻放大器 10-W Stereo Class-D Aud Power Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3101D2RGZRG4 | 功能描述:音頻放大器 10-W Stereo Class-D Aud Power Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3101D2RGZT | 功能描述:音頻放大器 10-W Stereo Class-D Aud Power Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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