Datasheet Texas Instruments LM49120 — 数据表

LM49120, LM49120TLEVAL
www.ti.com LM49120 SNAS431C – JUNE 2008 – REVISED MAY 2013 Audio Sub-System with Mono Class AB
Loudspeaker Amplifier and Stereo OCL/SE Headphone Amplifier
Check for Samples: LM49120, LM49120TLEVAL FEATURES DESCRIPTION The LM49120 is a compact audio subsystem
designed for portable handheld applications such as
cellular phones. The LM49120 combines a mono
1.3W speaker amplifier, stereo 85mW/ch output
capacitorless headphone amplifier, 32 step volume
control, and an input mixer/multiplexer into a single
16–bump DSBGA package. 1 2 RF Immunity
Selectable OCL/SE Headphone Drivers
32 Step Volume Control
Click and Pop Suppression
Independent Speaker and Headphone Gain
Settings
Minimum External Components
Thermal Over Load Protection
Micro-power Shutdown
Space Saving 16–bump DSBGA Package
Thermal Shutdown Protection
Micro-power Shutdown
I2C Control Interface The LM49120 has three input channels: two singleended stereo inputs and a differential mono input.
Each input features a 32-step digital volume control. …