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TPA6047A4

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具有 4.75V LDO、使能端高电平有效的 2W、立体声 AB 类扬声器和耳机放大器

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TPA6047A4

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产品详情

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Control interface Hardware Output power (W) 2 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 4.5 THD + N at 1 kHz (%) 0.06 Load (min) (Ω) 4 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Control interface Hardware Output power (W) 2 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 4.5 THD + N at 1 kHz (%) 0.06 Load (min) (Ω) 4 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RHB) 32 25 mm² (5 mm × 5 mm)
  • Microsoft Windows Vista Compliant
  • Fully Differential Architecture and High PSRR Provide Excellent RF Rectification Immunity
  • 2.1-W, 1% THD+N Into 4-Ω Speakers and 100-mW, 10% THD+N Into 16-Ω Headphones From 5-V Supply
  • DirectPath Headphone Amplifier Eliminates Output Capacitors(1)
  • Internal 4-Step Speaker Gain Control: 10, 12, 15.6, 21.6 dB and Fixed -1.5-V/V Headphone
  • 4.75-V Low Dropout Regulator for CODEC
  • Independent Shutdown Controls for Speaker, Headphone Amplifier, and Low Dropout Regulator (LDO)
  • Output Short-Circuit and Thermal Protection
  • APPLICATIONS
    • Notebook Computers
    • Portable DVD
  • Microsoft Windows Vista Compliant
  • Fully Differential Architecture and High PSRR Provide Excellent RF Rectification Immunity
  • 2.1-W, 1% THD+N Into 4-Ω Speakers and 100-mW, 10% THD+N Into 16-Ω Headphones From 5-V Supply
  • DirectPath Headphone Amplifier Eliminates Output Capacitors(1)
  • Internal 4-Step Speaker Gain Control: 10, 12, 15.6, 21.6 dB and Fixed -1.5-V/V Headphone
  • 4.75-V Low Dropout Regulator for CODEC
  • Independent Shutdown Controls for Speaker, Headphone Amplifier, and Low Dropout Regulator (LDO)
  • Output Short-Circuit and Thermal Protection
  • APPLICATIONS
    • Notebook Computers
    • Portable DVD

The TPA6047A4 is a stereo audio power amplifier and DirectPath headphone amplifier in a thermally enhanced, space-saving, 32-pin QFN package. The speaker amplifier is capable of driving 2.1 W per channel continuously into 4-Ω loads at 5 V. The headphone amplifier achieves a minimum of 100 mW at 10% THD+N from a 5-V supply. A built-in internal 4-step gain control for the speaker amplifier and a fixed -1.5 V/V gain for the headphone amplifier minimizes external components needed.

Independent shutdown control and dedicated inputs for the speaker and headphone allow the TPA6047A4 to simultaneously drive both headphones and internal speakers. Differential inputs to the speaker amplifiers offer superior power-supply and common-mode noise rejection.

The TPA6047A4 is a stereo audio power amplifier and DirectPath headphone amplifier in a thermally enhanced, space-saving, 32-pin QFN package. The speaker amplifier is capable of driving 2.1 W per channel continuously into 4-Ω loads at 5 V. The headphone amplifier achieves a minimum of 100 mW at 10% THD+N from a 5-V supply. A built-in internal 4-step gain control for the speaker amplifier and a fixed -1.5 V/V gain for the headphone amplifier minimizes external components needed.

Independent shutdown control and dedicated inputs for the speaker and headphone allow the TPA6047A4 to simultaneously drive both headphones and internal speakers. Differential inputs to the speaker amplifiers offer superior power-supply and common-mode noise rejection.

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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 2-W Stereo Audio Power Amplifier w/DirectPath Stereo Headphone Drive & Regulator 数据表 2008-10-6
EVM 用户指南 TPA6047A4EVM User's Guide 2008-11-6

设计与开发

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封装 引脚 CAD 符号、封装和 3D 模型
VQFN (RHB) 32 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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