参数资料
型号: TPA6011A4PWPG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 音频控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
封装: GREEN, PLASTIC, HTSSOP-24
文件页数: 17/35页
文件大小: 744K
代理商: TPA6011A4PWPG4
www.ti.com
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
相关PDF资料
PDF描述
TPA6013A4PWPG4 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO24
TPA6013A4PWPRG4 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO24
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相关代理商/技术参数
参数描述
TPA6011A4PWPR 功能描述:音频放大器 Stereo Class-AB w/Ster Hdphn Drive RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
TPA6011A4PWPRG4 功能描述:音频放大器 Stereo Class-AB w/Ster Hdphn Drive RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
TPA6012A4 制造商:TI 制造商全称:Texas Instruments 功能描述:3-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
TPA6012A4PWP 功能描述:音频放大器 2W Stereo Audio Power Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
TPA6012A4PWPEVM 功能描述:音频 IC 开发工具 TPA6012A4PWP Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V