LM4811中文资料具有数字音量控制的 105mW 立体声、模拟输入耳机放大器数据手册TI规格书

描述 Description

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.

特性 Features

• Digital Volume Control Range from +12dB to −33dB
• \"Click and Pop\" Suppression Circuitry
• Low Shutdown Current
• THD+N at 1kHz, 105mW Continuous Average Output Power into 16Ω 0.1 % (typ)
• Shutdown Current 0.3 μA (typ)