The LM49100 is a fully integrated audio subsystem capable of delivering 1.275W of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N and with a 5V power supply. The LM49100 also has a stereo true-ground headphone amplifier capable of 50mW per channel of continuous average power into a 32Ω single-ended (SE) loads with 1% THD+N.
●The LM49100 has three input channels. One pair of SE inputs can be used with a stereo signal. The other input channel is fully differential and may be used with a mono input signal. The LM49100 features a 32-step digital volume control and ten distinct output modes. The mixer, volume control, and device mode select are controlled through an I2C compatible interface.
●Thermal overload protection prevent the device from being damaged during fault conditions. Superior click and pop suppression eliminates audible transients on power-up/down and during shutdown.
● Mono and Stereo Inputs
● Thermal Overload Protection
● True-Ground Headphone Drivers
● I2C Control Interface
● Input Mute Attenuation
● 2nd Stage Headphone Attenuator
● 32-Step Digital Volume Control
● 10 Operating Modes
● Minimum External Components
● Click and Pop Suppression
● Micro-Power Shutdown
● Available in Space-Saving 3mm x 3mm
●25-Bump csBGA Package
● RF Suppression
