产品详情

Output power (W) 0.105 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 70 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.4 Architecture Class-AB Iq per channel (typ) (mA) 0.7
Output power (W) 0.105 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 70 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.4 Architecture Class-AB Iq per channel (typ) (mA) 0.7
VSSOP (DGK) 8 14.7 mm² 3 x 4.9 WSON (NGL) 8 6.25 mm² 2.5 x 2.5
  • Active-Low Shutdown Mode
  • "Click and Pop" Reduction Circuitry
  • Low Shutdown Current
  • WSON, MSOP, and SOIC Surface Mount Packaging
  • No Bootstrap Capacitors Required
  • Unity-Gain Stable

Key Specifications

  • THD+N at 1kHz at 105mW Continuous Average Power into 16Ω 0.1% (typ)
  • THD+N at 1kHz at 70mW Continuous Average Power into 32Ω 0.1% (typ)
  • Shutdown Current 0.4µA (typ)

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  • Active-Low Shutdown Mode
  • "Click and Pop" Reduction Circuitry
  • Low Shutdown Current
  • WSON, MSOP, and SOIC Surface Mount Packaging
  • No Bootstrap Capacitors Required
  • Unity-Gain Stable

Key Specifications

  • THD+N at 1kHz at 105mW Continuous Average Power into 16Ω 0.1% (typ)
  • THD+N at 1kHz at 70mW Continuous Average Power into 32Ω 0.1% (typ)
  • Shutdown Current 0.4µA (typ)

All trademarks are the property of their respective owners.

The LM4809 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4809 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The unity-gain stable LM4809 can be configured by external gain-setting resistors.

The LM4809 features an externally controlled, active-low, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

The LM4809 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4809 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The unity-gain stable LM4809 can be configured by external gain-setting resistors.

The LM4809 features an externally controlled, active-low, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

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类型 标题 下载最新的英语版本 日期
* 数据表 LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode 数据表 (Rev. F) 2013年 4月 5日
应用手册 Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019年 8月 26日
应用手册 AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019年 6月 27日

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LM4809MBD — LM4809M 评估模块

The LM4809 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16Ù load with 0.1% (THD+N) from a 5V power supply. This LM4809MBD is an evaluation board designed to ease the evaluation and effort during the development of a circuit using the (...)

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VSSOP (DGK) 8 查看选项
WSON (NGL) 8 查看选项

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