• 简体中文
• English

具有数字音量控制和停机模式的 LM4811 双路 105mW 耳机放大器

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.

产品特性

• 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)

参数parametrics

数据表 (1)

应用手册 (2)

订购型号