LM49151 Datasheet (National Semiconductor Corporation)

LM49151, Mono Class D Audio Subsystem

The LM49151 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones.

The LM49151 combines a 1.25W mono E2S class D amplifier, 125mW Class AB earpiece driver, 42mW/channel stereo ground referenced headphone drivers, volume control, input mixer/multipl

LM49151 Features

* National’s unique Automatic Level Control (ALC) that provides both a I2C programmable no-clip feature with Clip Controls and speaker protection. The E2S (Enhanced Emission Suppression) class D amplifier features a patented, ultra low EMI PWM architecture that significantly reduces RF emissions while