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參數(shù)資料
| 型號： | TPA2035D1EVM |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 7/18頁 |
| 文件大小： | 0K |
| 描述： | EVAL MODULE FOR TPA2035D1 |
| 標準包裝： | 1 |
| 系列： | NanoFree™ |
| 放大器類型： | D 類 |
| 輸出類型： | 1-通道（單聲道） |
| 在某負載時最大輸出功率 x 通道數(shù)量： | 2.75W x 1 @ 4 歐姆 |
| 電源電壓： | 2.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 板類型： | 完全填充 |
| 已用 IC / 零件： | TPA2035D1 |
| 已供物品： | 板 |
| 其它名稱： | 296-31092 TPA2035D1EVM-ND |
WHEN TO USE AN OUTPUT FILTER
1 nF
Ferrite
Chip Bead
VO
VO+
Ferrite
Chip Bead
1 nF
www.ti.com ................................................................................................................................................................................................ SLOS562 – AUGUST 2008
Design the TPA2035D1 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 TPA2035D1 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. See the EVM User's Guide (SLOU237) for
components used successfully by TI.
Figure 34 shows a typical ferrite-bead output filter.
Figure 34. Typical Ferrite Chip Bead Filter
Copyright 2008, Texas Instruments Incorporated
15
Product Folder Link(s): TPA2035D1
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| TPA2035D1YZFR | 功能描述:音頻放大器 2.75W Fix Gain Mono Class-D Aud 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 |
| TPA2035D1YZFT | 功能描述:音頻放大器 2.75W Fix Gain Mono Class-D Aud 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 |
| TPA2036D1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.5-W MONO CLASS-D AUDIO AMPLIFIER WITH AUTO-RECOVERY |
| TPA2036D1_11 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.5-W MONO CLASS-D AUDIO AMPLIFIER WITH AUTO-RECOVERY |
| TPA2036D1YZF | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.5-W MONO CLASS-D AUDIO AMPLIFIER WITH AUTO-RECOVERY |
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