LM49155
Overview
The LM49155 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. The LM49155 combines 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.
- Uplink Far Field Noise Suppression Electrical FFNSE at f = 1kHz Near-Field SNR Enhancement Downlink SNRIE POUT, THD+N ≤ %, VDD = 5.0V 34dB (typ)
- Downlink SNR Enhancement Earpiece Amplifier 6 to 18dB (typ) 16dB (typ)
- Class
- Loudspeaker Amplifier RL = 15μH+8Ω+15μH
- 35W (typ)
- Headphone Amplif
