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參數資料
| 型號： | TPA2032D1YZF |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2.75 W, 1 CHANNEL, AUDIO AMPLIFIER, BGA9 |
| 封裝： | LEAD FREE, BGA-9 |
| 文件頁數： | 7/19頁 |
| 文件大?。?/td> | 1016K |
| 代理商： | TPA2032D1YZF |
www.ti.com
WHEN TO USE AN OUTPUT FILTER
1 nF
Ferrite
Chip Bead
VO
VO+
Ferrite
Chip Bead
1 nF
SLOS476 – JUNE 2006
Design the TPA2032D1 without an output filter if the traces from the amplifier to the speaker are short. Wireless
handsets and PDAs are great applications for this class-D amplifier to be used without an output filter.
The TPA2032D1 passed FCC- and CE-radiated emissions testing with no shielding with speaker trace wires 100
mm long or less. For longer speaker trace wires, a ferrite bead can often be used in the design if failing radiated
emissions testing without an LC filter; and, the frequency-sensitive circuit is greater than 1 MHz. If choosing a
ferrite bead, choose one with high impedance at high frequencies, but very low impedance at low frequencies.
The selection must also take into account the currents flowing through the ferrite bead. Ferrites can begin to
loose effectiveness at much lower than rated current values. Please see the EVM User's Guide for components
used successfully by TI.
Figure 40 shows a typical ferrite-bead output filter.
Figure 40. Typical Ferrite Chip Bead Filter
15
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA2032D1YZFR | 功能描述:音頻放大器 2.75W Mon Fully Diff Class-D Aud Amp RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA2032D1YZFT | 功能描述:音頻放大器 2.75W Mon Fully Diff Class-D Aud Amp RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA2033D1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.75-W FIXED GAIN MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER |
| TPA2033D1YZF | 制造商:Texas Instruments 功能描述:IC OP AMP CLASS D 2.75W |
| TPA2033D1YZFR | 功能描述:音頻放大器 2.75W Mon Fully Diff Class-D Aud Amp RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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