LM49101
Overview
The LM49101 is a fully integrated audio subsystem with a mono power amplifier capable of delivering 540mW of continuous average power into an 8Ω BTL speaker load with 1% THD+N using a 3.3V supply. The LM49101 includes a separate stereo headphone amplifier that can deliver 44mW per channel into 32Ω loads using a 2.75V supply.
- 2 Differential Mono Input and Stereo SingleEnded Input
- Separate Earpiece (Receiver) Differential Input
- Analog Switch for a Separate Earpiece Path
- 32-Step Digital Volume Control (-80 to +18dB)
- Three Independent Volume Channels (Left, Right, Mono)
- Separate Headphone Volume Control
- Flexible Output for Speaker and Headphone Output
- True Ground Headphone Amplifier Eliminates Large DC Blocking Capacitors Reducing PCB Space and Cost
- Hardware Reset Function
- RF Immunity Topology
