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參數(shù)資料
| 型號(hào)： | TPA3106D1VFPRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 40 W, 1 CHANNEL, AUDIO AMPLIFIER, PQFP32 |
| 封裝： | 7 X 7 MM, GREEN, PLASTIC, HLQFP-32 |
| 文件頁數(shù)： | 9/35頁 |
| 文件大?。?/td> | 1250K |
| 代理商： | TPA3106D1VFPRG4 |
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When to Use an Output Filter for EMI Suppression
1 mF
33
H
m
33 mH
OUTP
OUTN
L1
L2
C2
C3
2.2 mF
15
H
m
15 mH
OUTP
OUTN
L1
L2
C2
C3
1nF
Ferrite
ChipBead
OUTP
OUTN
Ferrite
ChipBead
1nF
SLOS516B – OCTOBER 2007 – REVISED MARCH 2007
Design the TPA3106D1 without the filter if the traces from amplifier to speaker are short (< 10 cm). Powered
speakers, where the speaker is in the same enclosure as the amplifier, is a typical application for class-D without
a filter.
Most applications require a ferrite bead filter. The ferrite filter reduces EMI around 1 MHz and higher (FCC and
CE only test radiated emissions greater than 30 MHz). When selecting a ferrite bead, choose one with high
impedance at high frequencies, but low impedance at low frequencies.
Use an LC output filter if there are low frequency (<1 MHz) EMI-sensitive circuits and/or there are long wires
from the amplifier to the speaker.
When both an LC filter and a ferrite bead filter are used, the LC filter should be placed as close as possible to
the IC followed by the ferrite bead filter.
Figure 28. Typical LC Output Filter, Cutoff Frequency of 27 kHz, Speaker Impedance = 8
Figure 29. Typical LC Output Filter, Cutoff Frequency of 27 kHz, Speaker Impedance = 4
Figure 30. Typical Ferrite Chip Bead Filter (Chip Bead Example: Fair-Rite 2512067007Y3)
Copyright 2007, Texas Instruments Incorporated
17
Product Folder Link(s): TPA3106D1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPA3106D1VFPR | 40 W, 1 CHANNEL, AUDIO AMPLIFIER, PQFP32 |
| TPA3106D1VFP | 40 W, 1 CHANNEL, AUDIO AMPLIFIER, PQFP32 |
| TPA3107D2PAPR | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| TPA3107D2PAPT | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| TPA3107D2PAP | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA3107D2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:15-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA3107D2_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:15-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA3107D2EVM | 功能描述:音頻 IC 開發(fā)工具 AUD POWER AMP RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| TPA3107D2PAP | 功能描述:音頻放大器 15W Stereo Class-D Aud Power Amp 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 |
| TPA3107D2PAPG4 | 功能描述:音頻放大器 15W Stereo Class-D Aud Power Amp 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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