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| 型号： | TPA3100D2RGZT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 21.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| 封装： | 7 X 7 MM, GREEN, PLASTIC, VQFN-48 |
| 文件页数： | 13/41页 |
| 文件大小： | 1191K |
| 代理商： | TPA3100D2RGZT |
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FCCBLimit
PeakdB
70
60
50
40
30
20
0
30M
230M
430M
630M
830M
NationalTechnicalSystems,PlanoTX
RadiatedEmissions30MHz-1000MHz
FCCB
f-Frequency-Hz
LimitLevel-dB(
V/m)
m
SLOS469F – OCTOBER 2005 – REVISED AUGUST 2010
www.ti.com
Using the LC filter in Figure 27, the TPA3100D2 EMI EVM passed the FCC Part 15 Class B radiated emissions
with 21-inch speaker wires. Quasi-peak measurements were taken for the 4 standard test configurations, and the
TPA3100D2 EVM passed with at least 17-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 TPA3100D2 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 distortion. Also note that smaller inductors than 33
mH may cause an increase in distortion above what is shown in the 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 TPA3100D2 will cause increased distortion. LC filter capacitors should have DC voltage
ratings 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 2005–2010, Texas Instruments Incorporated
Product Folder Link(s): TPA3100D2
相关PDF资料 |
PDF描述 |
|---|---|
| TPA3100D2PHPR | 21.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| TPA3100D2RGZRG4 | 21.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| TPA3100D2RGZTG4 | 21.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| TPA3101D2RGZRG4 | 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| TPA3101D2RGZR | 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPA3100D2RGZT | 制造商:Texas Instruments 功能描述:IC AMP AUDIO PWR 21.8W D 48VQFN |
| TPA3100D2RGZTG4 | 功能描述:音频放大器 20 W Stereo Class-D Audio Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TPA3101D2 | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA3101D2_07 | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA3101D2EVM | 功能描述:音频 IC 开发工具 TPA3101D2 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
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