參數(shù)資料
型號(hào): 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(yè)數(shù): 8/23頁(yè)
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
相關(guān)PDF資料
PDF描述
TPA2000D1PWRG4 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO16
TPA2000D1PWG4 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO16
TPA2000D1TPWRG4Q1 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO16
TPA2000D1TPWRQ1 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO16
TPA2000D2PWPR 2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA2000D1PW 功能描述:音頻放大器 2W Class-D 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
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(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
TPA2000D1PWR 功能描述:音頻放大器 Mono Filter-Free Class-D 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
TPA2000D1PWRG4 功能描述:音頻放大器 Mono Filter-Free Class-D 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