LM4809是TI公司的一款耳机放大器产品，LM4809是具有低电平停机模式的 LM4809 双路 105mW 耳机放大器，本页介绍了LM4809的产品说明、应用、特性等，并给出了与LM4809相关的TI元器件型号供参考。
LM4809 - 具有低电平停机模式的 LM4809 双路 105mW 耳机放大器 - 耳机放大器 - 低功耗放大器 - TI公司（Texas Instruments，德州仪器）
The LM4809 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16? 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.
- 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 16? 0.1% (typ)
- THD+N at 1kHz at 70mW Continuous Average Power into 32? 0.1% (typ)
- Shutdown Current 0.4µA (typ)
