MT6824

Features

MT6824 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. Can perfectly replace AB class audio amplifier without adding heat sink. Extremely low quiescent current and shutdown mode current are very suitable for audio amplification applications in battery-powered systems. MT6824 adjusts the system gain through digital control to adjust the volume (-24dB~+24dB, 32 steps). Supports fully differential and single-ended inputs.

Parameters

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

. 2.5V～5V single power supply

. Fully differential input

. Digital volume control (-24dB～+24dB, 30 steps)

. 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 TSSOP20 package

Description: 2x3W filter-free, digital 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