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參數(shù)資料
| 型號： | TPA2010D1YZF |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 2.5-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER |
| 中文描述： | 2.5單聲道無濾波器D類音頻功率放大器 |
| 文件頁數(shù)： | 20/23頁 |
| 文件大?。?/td> | 415K |
| 代理商： | TPA2010D1YZF |
SLOS417A OCTOBER 2003 REVISED DECEMBER 2003
www.ti.com
20
When to Use an Output Filter
Design the TPA2010D1 without an output filter if the traces from amplifier to speaker are short. The TPA2010D1
passed FCC and CE radiated emissions with no shielding with speaker trace wires 100 mm long or less.
Wireless handsets and PDAs are great applications for class-D without a filter.
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 is good for circuits that just have to pass FCC and CE
because FCC and CE only test radiated emissions greater than 30 MHz. If choosing a ferrite bead, choose one
with high impedance at high frequencies, but very 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 leads
from amplifier to speaker.
Figure 37 and Figure 38 show typical ferrite bead and LC output filters.
1 nF
Ferrite
Chip Bead
OUTP
OUTN
Ferrite
Chip Bead
1 nF
Figure 37. Typical Ferrite Chip Bead Filter (Chip bead example: NEC/Tokin: N2012ZPS121)
1
μ
F
1
μ
F
33
μ
H
33
μ
H
OUTP
OUTN
Figure 38. Typical LC Output Filter, Cutoff Frequency of 27 kHz
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| TPA2010D1YZFR | 功能描述:音頻放大器 Mono Filter-Free Class-D in WCSP 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 |
| TPA2010D1YZFRG4 | 制造商:TI 功能描述:AUDIO POWER AMPLIFIER |
| TPA2010D1YZFT | 功能描述:音頻放大器 Mono Filter-Free Class-D in WCSP 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 |
| TPA2011D1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3.2W Mono Filter-Free Class-D Audio Power Amplifier With Auto-Recovering Short-Circuit Protection |
| TPA2011D1_12 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3.2W Mono Filter-Free Class-D Audio Power Amplifier |
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