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General Description

The TA2021B is a 25W (4?) continuous average per channel Class-T Digital Audio Power Amplifier IC using Tripath’s proprietary Digital Power Processing (DPPTM) technology. Class-T amplifiers offer both the audio fidelity of Class-AB and the power efficiency of Class-D amplifiers.

Features

? Class-T architecture

? Single Supply Operation

? “Audiophile” Quality Sound

? 0.05 THD+N @ 13W 4?

? 0.1 THD+N @15.5W 4?

? 0.1 IHF-IM @ 1W 4?

? High Power

? 25W @ 4?, 10 THD+N, VDD=14.6V

? 23.5W @ 4?, 10 THD+N, VDD=14.2V

? 14W @ 8?, 10 THD+N, VDD=14.2V

? High Efficiency

? 88 @ 13.5W 8?

? 81 @ 25W 4?

? Dynamic Range = 100 dB

? Mute and Sleep inputs

? Turn-on & turn-off pop suppression

? Over-current protection

? Over-temperature protection

? Bridged outputs

? 36-pin PSOP “Slug-Up” package

Benefits

? Fully integrated solution with internal FETs

? Easier to design-in than Class-D

? Dramatically improves efficiency versus Class-AB amplifiers

? Signal fidelity equal to high quality linear amplifiers

? High dynamic range compatible with digital media such as CD and DVD, and internet audio

Applications

? DVD Receivers

? Mini/Micro Component Systems

? Computer / PC Multimedia

? Cable Set-Top Products

? Televisions

? Battery Powered Systems