General Description

The TA2021B is a 25W (4Ω) 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 4Ω

➤ 0.1 THD+N @15.5W 4Ω

➤ 0.1 IHF-IM @ 1W 4Ω

➤ High Power

➤ 25W @ 4Ω, 10 THD+N, VDD=14.6V

➤ 23.5W @ 4Ω, 10 THD+N, VDD=14.2V

➤ 14W @ 8Ω, 10 THD+N, VDD=14.2V

➤ High Efficiency

➤ 88 @ 13.5W 8Ω

➤ 81 @ 25W 4Ω

➤ 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