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參數(shù)資料
| 型號： | TPA6011A4PWPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24 |
| 封裝： | GREEN, PLASTIC, HTSSOP-24 |
| 文件頁數(shù)： | 17/35頁 |
| 文件大?。?/td> | 744K |
| 代理商： | TPA6011A4PWPR |
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USING LOW-ESR CAPACITORS
BRIDGED-TIED LOAD vs SINGLE-ENDED LOAD
Power +
V
(rms)
2
R
L
V
(rms) +
V
O(PP)
2 2
(5)
RL
2x VO(PP)
VO(PP)
-VO(PP)
VDD
TPA6011A4
SLOS392A – FEBRUARY 2002 – REVISED JULY 2004
As Table 4 indicates, most of the bass response is attenuated into a 4-
load, an 8- load is adequate,
headphone response is good, and drive into line level inputs (a home stereo for example) is exceptional.
Low-ESR capacitors are recommended throughout this applications section. A real (as opposed to ideal)
capacitor can be modeled simply as a resistor in series with an ideal capacitor. The voltage drop across this
resistor minimizes the beneficial effects of the capacitor in the circuit. The lower the equivalent value of this
resistance, the more the real capacitor behaves like an ideal capacitor.
Figure 36 shows a Class-AB audio power amplifier (APA) in a BTL configuration. The TPA6011A4 BTL amplifier
consists of two Class-AB amplifiers driving both ends of the load. There are several potential benefits to this
differential drive configuration, but, initially consider power to the load. The differential drive to the speaker
means that as one side is slewing up, the other side is slewing down, and vice versa. This in effect doubles the
voltage swing on the load as compared to a ground referenced load. Plugging 2
× V
O(PP) into the power equation,
where voltage is squared, yields 4
× the output power from the same supply rail and load impedance (see
Equation 5).
Figure 36. Bridge-Tied Load Configuration
24
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| TPA6011A4PWP | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24 |
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| TPA6011A4PWPG4 | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA6011A4PWPRG4 | 功能描述:音頻放大器 Stereo Class-AB w/Ster Hdphn Drive 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA6012A4 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL |
| TPA6012A4PWP | 功能描述:音頻放大器 2W Stereo Audio Power 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA6012A4PWPEVM | 功能描述:音頻 IC 開發(fā)工具 TPA6012A4PWP Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)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 |
| TPA6012A4PWPR | 功能描述:音頻放大器 2W Stereo Audio Power 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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