LM4859中文资料具有 3D 增强功能和 10 种输出模式的 1.2W 立体声模拟输入 AB 类音频放大器数据手册TI规格书

描述 Description

The LM4859 is an integrated audio sub-system designed for stereo cell phone applications. Operating on a 3.3V supply, it combines a stereo speaker amplifier delivering 495mW per channel into an 8Ω load and a stereo headphone amplifier delivering 33mW per channel into a 32Ω load. It integrates the audio amplifiers, volume control, mixer, power management control, and Texas Instruments 3D enhancement all into a single package. In addition, the LM4859 routes and mixes the stereo and mono inputs into 10 distinct output modes. The LM4859 is controlled through an I2C compatible interface. Other features include an ultra-low current shutdown mode and thermal shutdown protection. Boomer audio power amplifiers are designed specifically to provide high quality output power with a minimal amount of external components.The LM4859 is available in a 30–bump TL package and a 28–lead UQFN package.

特性 Features

• Stereo Speaker Amplifier
• Independent Left, Right, and Mono Volume Controls
• I2C Compatible Interface
• Click and Pop Suppression Circuit
• Thermal Shutdown Protection
• POUT, Stereo Loudspeakers, 4Ω, 5V, 1% THD+N (LM4859SP), 1.6W (Typ)
• POUT, Stereo Headphones, 32Ω, 5V, 1% THD+N, 75mW (typ)
• POUT, Stereo Headphones, 32Ω, 3.3V, 1% THD+N, 33mW (typ)
• Shutdown Current, 0.06μA (typ)