LM4811

AKTIV

105-mW-Stereo-Kopfhörerverstärker mit Analog-Eingang und digitaler Lautstärkeregelung

Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 85
Rating Catalog Operating temperature range (°C) -40 to 85
VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • Digital Volume Control Range from +12dB to −33dB
  • WSON and VSSOP Surface Mount Packaging
  • "Click and Pop" Suppression Circuitry
  • No Bootstrap Capacitors Required
  • Low Shutdown Current

Key Specifications

  • THD+N at 1kHz, 105mW Continuous Average Output Power into 16Ω 0.1 % (typ)
  • THD+N at 1kHz, 70mW Continuous  Average Power into 32Ω 0.1 % (typ)
  • Shutdown Current 0.3 μA (typ)

All trademarks are the property of their respective owners.

  • Digital Volume Control Range from +12dB to −33dB
  • WSON and VSSOP Surface Mount Packaging
  • "Click and Pop" Suppression Circuitry
  • No Bootstrap Capacitors Required
  • Low Shutdown Current

Key Specifications

  • THD+N at 1kHz, 105mW Continuous Average Output Power into 16Ω 0.1 % (typ)
  • THD+N at 1kHz, 70mW Continuous  Average Power into 32Ω 0.1 % (typ)
  • Shutdown Current 0.3 μA (typ)

All trademarks are the property of their respective owners.

The LM4811 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 LM4811 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4811 features a digital volume control that sets the amplifier's gain from +12dB to −33dB in 16 discrete steps using a two−wire interface.

The unity-gain stable LM4811 also features an externally controlled, active-high, micropower consumption shutdown mode. It also has an internal thermal shutdown protection mechanism.

The LM4811 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 LM4811 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4811 features a digital volume control that sets the amplifier's gain from +12dB to −33dB in 16 discrete steps using a two−wire interface.

The unity-gain stable LM4811 also features an externally controlled, active-high, micropower consumption shutdown mode. It also has an internal thermal shutdown protection mechanism.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt LM4811 Dual 105mW Headphone Amp w/Dig Vol Control & Shutdown Mode datasheet (Rev. D) 05.04.2013
Anwendungshinweis Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26.08.2019
Anwendungshinweis AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27.06.2019

Design und Entwicklung

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