LM4855 Overview
The LM4855 is an audio power amplifier system capable of delivering 1.1W (typ) of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N and 115mW (typ) per channel of continuous average power into stereo 32Ω BTL loads with 0.5% THD+N, using a 5V power supply.
LM4855 Key Features
- 2 1.1W (Typ) Output Power with 8Ω Mono BTL Load
- 115mW (Typ) Output Power with Stereo 32Ω BTL Loads
- SPI Programmable 32 Step Digital Volume Control
- Eight Distinct Output Modes
- DSBGA and WQFN Surface Mount Packaging
- "Click and Pop" Suppression Circuitry
- Thermal Shutdown Protection
- Low Shutdown Current (0.1uA, Typ)
- THD+N at 1kHz, 1.1W into 8Ω BTL: 1.0% (Typ)
- THD+N at 1kHz, 115mW into 32Ω BTL: 0.5%
