The LM4937RLX from Texas Instruments is an advanced integrated circuit designed to deliver high-quality audio output for mobile phones and other portable communication devices.

• Audio Subsystem: Mono/stereo audio subsystem.
• Amplifiers: High-efficiency, mono Class D speaker amplifier, a stereo headphone amplifier, and a mono earpiece amplifier.
• Power Consumption: Low power consumption.
• Power Supply: Operates on a single 2.7V to 5.5V power supply.
• Output Power: Delivers 495mW into an 8Ω load with less than 1% distortion (THD+N) from a 5V power supply.
• Sound Enhancement: Texas Instruments' patented 3D enhancement.
• Power Sequencing: Flexible power sequencing capability.
• Interface: I2C compatible interface.
• Volume Control: Volume control with mute and a selectable gain.
• Package: Micro SMD package.
• Shutdown Mode: Shutdown mode available.