LM49120TLEVAL
FEATURES
- 2 RF Immunity
- Selectable OCL/SE Headphone Drivers
- 32 Step Volume Control
- Click and Pop Suppression
- Independent Speaker and Headphone Gain
Settings
- Minimum External ponents
- Thermal Over Load Protection
- Micro-power Shutdown
- Space Saving 16- bump DSBGA Package
- Thermal Shutdown Protection
- Micro-power Shutdown
- I2C Control Interface
DESCRIPTION
The LM49120 is a pact audio subsystem designed for portable handheld applications such as cellular phones. The LM49120 bines a mono 1.3W speaker amplifier, stereo 85m W/ch output capacitorless headphone amplifier, 32 step volume control, and an input mixer/multiplexer into a single 16- bump DSBGA package.
The LM49120 has three input channels: two singleended stereo inputs and a differential mono input. Each input features a 32-step digital volume control. The headphone output stage features an 8 step (18d B
- 0d B) attenuator, while the speaker output stage has two selectable (0d B/+6d B) gain settings. The digital volume...
