TA2022

Tripath Technology, Inc. - Technical Information TA 2 0 2 2 STEREO 90W (4Ω) CLASS-T™ DIGITAL AUDIO AMPLIFIER DRIVER USING DIGITAL POWER PROCESSING (DPP™) TECHNOLOGY Technical Information Revision 1.2 – JULY 2004 GENERAL DESCRIPTION The TA2022 is a 90W (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. APPLICATIONS DVD Players Mini/Micro Component Systems Home Theater Powered Speakers BENEFITS Fully integrated solution with internal FETs 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 FEATURES Class-T architecture High Power 100W @ 4Ω, 1.0% THD+N 90W @ 4Ω, 0.1% THD+N 60W @ 8Ω, 0.1% THD+N “Audiophile” Sound Quality 0.015% THD+N @ 70W 4Ω 0.015% THD+N @ 45W 8Ω 0.10% IHF-IM @ 25W 4Ω High Efficiency 92% @ 88W 8Ω 87% @ 125W 4Ω Dynamic Range = 102 dB Mute Input Integrated Gate Drive Supply Over-current protection Over and under-voltage protection Single ended outputs Outputs can be operated in bridged mode 32-pin SSIP package 1 TA2022 – KLI/1.2/07-04 Tripath Technology, Inc. - Technical Information A B S O L U T E M A X I M U M R A T I N G S (Note 1) SYMBOL PARAMETER VPP, VNN Supply Voltage (VPP1, VPP2, VNN1, VNN2) V5 VN10 Positive ...