參數(shù)資料
型號(hào): TPA3200D1DCP
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 12.8 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO44
封裝: GREEN, PLASTIC, HTSSOP-44
文件頁數(shù): 9/29頁
文件大?。?/td> 1083K
代理商: TPA3200D1DCP
www.ti.com
CLASS-D OPERATION
Traditional Class-D Modulation Scheme
0 V
12 V
+12 V
Current
OUTP
Differential Voltage
Across Load
OUTN
TPA3200D1
SLOS442A – MAY 2005 – REVISED JULY 2005
This section focuses on the class-D operation of the TPA3200D1.
The traditional class-D modulation scheme, which is used in the TPA032D0x family, has a differential output
where each output is 180 degrees out of phase and changes from ground to the supply voltage, VCC. Therefore,
the differential pre-filtered output varies between positive and negative VCC, where filtered 50% duty cycle yields
0 V across the load. The traditional class-D modulation scheme with voltage and current waveforms is shown in
Figure 31. Note that even at an average of 0 V across the load (50% duty cycle), the current to the load is high,
causing high loss, thus causing a high supply current.
Figure 21. Traditional Class-D Modulation Scheme’s Output Voltage and Current Waveforms Into an
Inductive Load With No Input
17
相關(guān)PDF資料
PDF描述
TPA3200D1DCPR 12.8 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO44
TPA3200D1DCPRG4 12.8 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO44
TPA3200D1DCPG4 12.8 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO44
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA3200D1DCP 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC 制造商:Texas Instruments 功能描述:IC, AUDIO PWR AMP, CLASS D 20W HTSSOP-44
TPA3200D1DCPG4 功能描述:音頻放大器 Mono High Power Dig Input 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
TPA3200D1DCPR 功能描述:音頻放大器 Mono High Power Dig Input 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
TPA3200D1DCPRG4 功能描述:音頻放大器 Mono High Power Dig Input 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
TPA3200D1EVM 功能描述:音頻 IC 開發(fā)工具 TPA3200D1 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V