The LM4930LQ/NOPB is a high-performance audio subsystem developed by Texas Instruments, a global semiconductor company that designs, manufactures, tests, and sells analog and embedded processing chips.

• Features: Stereo headphone amplifier, a mono earpiece amplifier, and a mono 1.2W audio power amplifier
• Audio Inputs: Differential audio inputs
• Audio Output: Stereo line output
• Power Supply: Can operate from a 2.7V to 5.5V power supply
• Headphone amplifier: Can drive a 32-ohm load @ 5mW
• Earpiece amplifier: Can drive a 32-ohm load @ 25mW
• Audio power amplifier: Can drive an 8-ohm load @ 1.2W
• Volume Control: Programmable, two-level volume control
• Mute function: Can be activated or deactivated by a logic high or low signal
• Package: Compact 32-pin LLP package
• Operating Temperature: Wide operating temperature range from -40°C to 85°C