LM4985 Datasheet - National Semiconductor

LM4985 Stereo 135mW Low Noise Headphone Amplifier

The LM4985 is a stereo audio power amplifier with internal digitally controlled volume control. This amplifier is capable of delivering 68mWRMS per channel into a 16Ω load or 38mWRMS per channel into a 32Ω load at 1% THD when powered by a 3.6V power supply and operating in the OCL mode. Boomer audio.

LM4985 Features

* two functions that optimize system cost and minimize PCB area: an integrated, digitally controlled (I2C bus) volume control and an operational mode that eliminates output signal coupling capacitors (OCL mode). Since the LM4985 does not require bootstrap capacitors, snubber networks, or output coupli

LM4985_NationalSemiconductor.pdf