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| 型号： | TPA2017D2RTJT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 2.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20 |
| 封装： | 4 X 4 MM, GREEN, PLASTIC, QFN-20 |
| 文件页数： | 5/20页 |
| 文件大小： | 642K |
| 代理商： | TPA2017D2RTJT |
FILTER FREE OPERATION AND FERRITE BEAD FILTERS
Ferrite
ChipBead
Ferrite
ChipBead
1nF
OUTP
OUTN
www.ti.com ..................................................................................................................................................................................................... SLOS584 – APRIL 2009
A ferrite bead filter can often be used if the design is failing radiated emissions without an LC filter and the
frequency sensitive circuit is greater than 1 MHz. This filter functions well for circuits that just have to pass FCC
and CE because FCC and CE only test radiated emissions greater than 30 MHz. When choosing a ferrite bead,
choose one with high impedance at high frequencies, and low impedance at low frequencies. In addition, select a
ferrite bead with adequate current rating to prevent distortion of the output signal.
Use an LC output filter if there are low frequency (< 1 MHz) EMI sensitive circuits and/or there are long leads
from amplifier to speaker. Figure 21 shows typical ferrite bead and LC output filters.
Figure 21. Typical Ferrite Bead Filter (Chip bead example: TDK: MPZ1608S221A)
Copyright 2009, Texas Instruments Incorporated
13
Product Folder Link(s): TPA2017D2
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相关代理商/技术参数 |
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|---|---|
| TPA2017D2RTJT | 制造商:Texas Instruments 功能描述:; No. of Channels:2; Output Power Po rm |
| TPA2017D2V2RTJR | 制造商:Texas Instruments 功能描述: |
| TPA2018D1 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3-W Mono Class-D Audio Amplifier with SmartGain AGC/DRC |
| TPA2018D1YZFEVM | 功能描述:音频 IC 开发工具 TPA2018D1YZF 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 |
| TPA2018D1YZFR | 功能描述:音频放大器 3W Mono Class-D Aud 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 |
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