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參數資料
| 型號： | TPA2000D1GQCR |
| 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, PBGA48 |
| 封裝： | 4 X 4 MM, PLASTIC, BGA-48 |
| 文件頁數： | 8/23頁 |
| 文件大小： | 500K |
| 代理商： | TPA2000D1GQCR |
www.ti.com
LOW SUPPLY VOLTAGE POP
INN
1 MW
VDD
INP
TPA2000D1
+
Audio In
TPA2000D1
SLOS328F – JUNE 2000 – REVISED MARCH 2004
The TPA2000D1 pops when coming out of shutdown at low supply voltages (3.3 V and less) when using the
application schematic shown above. 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. This causes a pop. Figure 12 shows 1-M
resistors added to form voltage dividers. The voltage
dividers bias the inputs to VDD/2 that keeps the pop low at turn on and when coming out of shutdown. The
resistors should be 1% tolerance to ensure the offset voltage is not increased.
Figure 12. Voltage Dividers
16
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| TPA2000D1TPWRG4Q1 | 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO16 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA2000D1PW | 功能描述:音頻放大器 2W 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 |
| TPA2000D1PW | 制造商:Texas Instruments 功能描述:POWER AMP CLASS-D AUDIO SMD 2000 |
| TPA2000D1PWG4 | 功能描述:音頻放大器 Mono 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 |
| TPA2000D1PWR | 功能描述:音頻放大器 Mono 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 |
| TPA2000D1PWRG4 | 功能描述:音頻放大器 Mono 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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