LM49150 Overview
The LM49150 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. Part of National's Power Wise® product family, the LM49150 consumes very low power in the various modes of operation and still providing great audio performance. The LM49150 bines a 1.25W mono E2S (Enhanced Emission Suppression) class D amplifier, 135mW Class AB earpiece amplifier, 42mW/channel...
LM49150 Key Features
- Output power at VDD = 5V: Speaker: RL = 8Ω BTL, THD+N ≤ 1% Headphone: RL = 32Ω SE, THD+N ≤ 1% Earpiece: RL = 8Ω
- Output power at VDD = 3.3V: Speaker: RL = 8Ω BTL, THD+N ≤ 1% Headphone: RL = 32Ω BTL, THD+N ≤ 1% Earpiece: RL =
- Output Offset
- Single Supply Operation (VDD)
- I2C Single Supply Operation
- E2S class D amplifier
- Ground referenced headphone outputs
- eliminates
- output coupling capacitors I2C volume and mode control Mono earpiece amplifier Flexible output for speaker and headphone
