MT6823

Features

MT6823 is a dual-channel (stereo) Class-D audio power amplifier with 3W output power/channel (4-Ω speaker) and no output filtering. Total harmonic distortion is less than 0.07%, signal-to-noise ratio is high (90dB), and efficiency is up to 90%. The unique design can effectively reduce EMI interference, without any external filter components such as magnetic beads, and can work directly with FM radio. Excellent suppression of startup pop noise characteristics. It can perfectly replace Class AB audio amplifiers without adding heat sinks. The extremely low quiescent current and shutdown mode current are very suitable for audio amplification applications in battery-powered systems. MT6823 adjusts the system gain and thus the volume (-24dB~+24dB, 32 steps) through the external input DC level. Supports fully differential and single-ended inputs.

MT6823 is SOP16 package.

Parameters

. High output power: 3W@ VDD=PVDD=5V, RL=4Ω, THD+N=10%

. 2.5V～5V single power supply

. Fully differential input

. 30-step DC volume control (-24dB～+24dB)

. No LC filter required, ultra-low electromagnetic interference (EMI), can work directly with FM radio, no need for additional filtering components such as magnetic beads

. Total harmonic distortion plus noise (THD+N) is less than 0.1%

. Excellent power-on and power-off noise (Rop-sound) suppression

. Very low quiescent operating current and shutdown mode current

. Very few external components, saving space and cost

. Over temperature and over current/short circuit protection

. Lead-free SOP16 package

Description: 2x3W filter-free, DC volume control, fully differential input, FM compatible

Vin(V): 2.5V～5.5V

Application

Cell phones, portable media players, portable audio products, navigation devices, game consoles, cordless phones