LM4838中文资料具有 DC 音量控制和可选增益的立体声 2W 音频功率放大器数据手册TI规格书

描述 Description

The LM4838 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4Ω with less than 1.0% THD or 2.2W into 3Ω with less than 1.0% THD (see Notes below).
Boomer audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4838 incorporates a DC volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost, making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications.
The LM4838 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.
Note: When properly mounted to the circuit board, the LM4838NJB, LM4838PWP, and LM4838NYC will deliver 2W into 4Ω. The LM4838PW and LM4838YZR will deliver 1.1W into 8Ω. Seesectionfor more information.
Note: An LM4838NJB and LM4838PWP that have been properly mounted to the circuit board and forced-air cooled will deliver 2.2W into 3Ω.

特性 Features

• DC Volume Control Interface
• Stereo Switchable Bridged/Single-Ended Power Amplifiers
• “Click and Pop” Suppression Circuitry
• Thermal Shutdown Protection Circuitry
Boomer is a trademark of Texas Instruments.