LM4809数据手册开发板套件编程器的评估板-音频放大器规格书PDF

描述 Description

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.

特性 Features

• 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)