參數(shù)資料
型號(hào)： TPA3106D1VFP
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(yè)數(shù)： 9/35頁(yè)
文件大?。?/td> 1250K
代理商： TPA3106D1VFP
www.ti.com
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA3106D1VFPG4 功能描述:音頻放大器 40W Mono Class-D Audio 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
TPA3106D1VFPR 功能描述:音頻放大器 40W Mono Class-D Audio Pwr 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
TPA3106D1VFPR 制造商:Texas Instruments 功能描述:Audio Power Amplifiers
TPA3106D1VFPRG4 功能描述:音頻放大器 40W Mono Class-D Audio 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
TPA3107D2 制造商:TI 制造商全稱:Texas Instruments 功能描述:15-W STEREO CLASS-D AUDIO POWER AMPLIFIER
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