LM49155 Datasheet | National Semiconductor Corporation

DataSheet.in LM49155 Product Brief LM49155 PRODUCT BRIEF PRELIMINARY July 21, 2010 Uplink Noise Suppression & Downlink SNR Enhancement Analog Audio Subsystem General Description The LM49155 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. The LM49155 bines a Noise Suppression microphone amplifier, a 1.35W mono class D amplifier with ALC, class AB earpiece driver with AGC, a high efficiency, stereo, ground referenced headphone amplifier with click pop suppression and I2C modes select and volume control. The LM49155 Features analog fully differential input, and differential output microphone amplifier designed to reduce...