M4670 Datasheet | Unisonic Technologies

UNISONIC TECHNOLOGIES CO., LTD M4670 Preliminary FITERLESS HIGH EFFICIENCY 3W SWITCHING AUDIO AMPLIFIER CMOS IC - DESCRIPTION The M4670 is a fully integrated single-supply, high-efficiency Class D switching audio amplifier, and it can provide 3W of output power. Containing adjustable output gain chip with micro-power shutdown mode, the M4670 has innovative modulation schemes that eliminate the output filter wave devices and thus reduces the requirement of external ponents helping to streamline the circuit design and reduce board area. By using delta-sigma modulation technique which handles ining analog signal, the M4670 can reduce the output noise and total harmonic distortion. Operating on a single 5V supply, the M4670 can be a continuous average output of 2.3W of power to driver the 4Ω speaker, and the total harmonic distortion and noise (THD+N) are less than 1%. High power conversion efficiency of the M4670 can drive a larger load speaker that is respectively parable to the typical Class AB amplifier. Its can be used with a 3.6V, 600mW power supply to driver an 8Ω speaker, while the efficiency is as high as 88%. The M4670 has a high output power characteristics that makes it ideal for ultra-high-power walkie-talkies, mobile phones, hands-free inter systems and applications. - Features - Externally Configurable Gain - No Output Filter Required for Inductive Loads - Very Fast Turn on Time: 1.05ms (Typical) - ‘Click and Pop’ Suppression Circuitry - Micro-Power Shutdown Mode - Short Circuit Protection - ORDERING INFORMATION Ordering Number M4670G-K08-3030-R Package DFN-8(3×3) Packing Tape Reel .unisonic..tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 8 QW-R502-442.d M4670 - MARKING Preliminary CMOS IC - PIN...