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參數資料
| 型號： | TPA2000D1TPWRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO16 |
| 封裝： | GREEN, PLASTIC, TSSOP-16 |
| 文件頁數： | 7/19頁 |
| 文件大小： | 307K |
| 代理商： | TPA2000D1TPWRQ1 |
Low Supply Voltage Pop
INN
1 MW
VDD
INP
TPA2000D1
+
Audio In
www.ti.com ........................................................................................................................................ SGLS137E – SEPTEMBER 2002 – REVISED OCTOBER 2008
The TPA2000D1 pops when coming out of shutdown at low supply voltage (3.3 V and less) when using the
circuit shown in Figure 12. The pops occur because the common-mode input range is worse at the lower supply
voltages. At low supply voltages, the inputs are not within the common-mode input range when coming out of
shutdown. The outputs develop an offset voltage until the inputs settle within the common-mode input range,
which causes a pop. Figure 13 shows 1-M
resistors added to form voltage dividers. The voltage dividers bias
the inputs to VDD/2 that keeps the pop low at turnon and when coming out of shutdown. The resistors should be
1% tolerance to ensure the offset voltage is not increased.
Figure 13. Voltage Dividers
Copyright 2002–2008, Texas Instruments Incorporated
15
Product Folder Link(s): TPA2000D1-Q1
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相關代理商/技術參數 |
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| TPA2000D2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA2000D2_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA2000D2EVM | 功能描述:音頻 IC 開發工具 TPA2000D2 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TPA2000D2PW | 功能描述:音頻放大器 Stereo Filter-Free Class-D 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 |
| TPA2000D2PWG4 | 功能描述:音頻放大器 Stereo Filter-Free Class-D 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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