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TA2021B Datasheet, PDF (1/12 Pages) Tripath Technology Inc. – STEREO 25W (4OHM) CLASS-T DIGITAL AUDIO AMPLIFIER DRIVER USING DIGITAL POWER PROCESSING (DPP) TECHNOLOGY | |||
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Tripath Technology, Inc. - Technical Information
TA 2 0 2 1 B
STEREO 25W (4â¦) CLASS-T⢠DIGITAL AUDIO AMPLIFIER DRIVER
USING DIGITAL POWER PROCESSING (DPPâ¢) TECHNOLOGY
Technical Information
Revision 4.0 â July 2003
General Description
The TA2021B is a 25W (4â¦) continuous average per channel Class-T Digital Audio Power Amplifier IC
using Tripathâs 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 Receivers
Mini/Micro Component Systems
Computer / PC Multimedia
Cable Set-Top Products
Televisions
Battery Powered Systems
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
Typical Performance
10
5 VDD=14.2V
Av=12V/V
2 BW=22-22kHz
1
0.5
0.2
0.1
0.05
0.02
0.01
600m 1
THD+N vs Output Power
RL=8â¦
2
3 4 5 6 789
Output Power (W)
RL=4â¦
20
Features
Class-T architecture
Single Supply Operation
âAudiophileâ Quality Sound
0.05% THD+N @ 13W 4â¦
0.1% THD+N @15.5W 4â¦
0.1% IHF-IM @ 1W 4â¦
High Power
25W @ 4â¦, 10% THD+N, VDD=14.6V
23.5W @ 4â¦, 10% THD+N, VDD=14.2V
14W @ 8â¦, 10% THD+N, VDD=14.2V
High Efficiency
88% @ 13.5W 8â¦
81% @ 25W 4â¦
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 âSlug-Upâ package
1
TA2021B â 4.0/07.03
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