LM4811
- 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)
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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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LM4811 Dual 105mW Headphone Amp w/Dig Vol Control & Shutdown Mode datasheet (Rev. D) | 2013/4/5 | |||
| 應用說明 | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019/8/26 | ||||
| 應用說明 | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019/6/27 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGS) | 10 | Ultra Librarian |
訂購與品質
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