LM4949 Datasheet | National Semiconductor

.. LM4949 Stereo Class D Audio Subsystem with OCL Headphone Amplifier September 2006 LM4949 Stereo Class D Audio Subsystem with OCL Headphone Amplifier General Description The LM4949 is a fully integrated audio subsystem designed for stereo cell phone applications. The LM4949 bines a 2.5W stereo Class D amplifier plus a separate 190mW stereo headphone amplifier, volume control, and input mixer into a single device. The filterless class D amplifiers deliver 1.19W/channel into an 8Ω load with < 1% THD+N from a 5V supply. The headphone amplifier Features National’s Output Capacitor-less (OCL) architecture that eliminates the output coupling capacitors required by...