LM49155 Overview
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.
LM49155 Key Features
- 2 Noise cancellation for uplink and downlink without DSP-type artifacts, distortions or delays
- Adapting AGC on ambient noise level & downlink signal strength for earpiece
- Downlink adjustable noise-reducing high pass filter
- E2S Class D Amplifier with ALC
- Micro-power shutdown
