TA1101B Datasheet, PDF (1/13 Pages) Tripath Technology Inc. – Stereo 10W (4Ω) Class-T™ Digital Audio Amplifier using Digital Power Processing™ Technology

TECHNICAL INFORMATION
Stereo 10W (4Ω) Class-T™ Digital Audio Amplifier using
Digital Power Processing™ Technology
TA1101B
September 2000
General Description
The TA1101B is a 10W continuous average two-channel Class-T Digital Audio Power
Amplifier IC using Tripath’s proprietary Digital Power Processing™ technology. Class-T
amplifiers offer both the audio fidelity of Class-AB and the power efficiency of Class-D
amplifiers.
Applications
!"Computer/PC Multimedia
!"DVD Players
!"Cable Set-Top Products
!"Televisions
!"Video CD Players
!"Battery Powered Systems
Benefits
!"Fully integrated solution with FETs
!"Easier to design-in than Class-D
!"Reduced system cost with no heat sink
!"Dramatically improves efficiency versus
Class-AB
!"Signal fidelity equal to high quality linear
amplifiers
!"High dynamic range compatible with digital
media such as CD, DVD, and Internet audio
Features
!"Class-T architecture
!"Single Supply Operation
!"“Audiophile” Quality Sound
!"0.04% THD+N @ 9W, 4Ω
!"0.18% IHF-IM @ 1W, 4Ω
!"6W @ 8Ω, 0.1% THD+N
!"11W @ 4Ω, 0.1% THD+N
!"High Power
!"10W @ 8Ω, 10% THD+N
!"15W @ 4Ω, 10% THD+N
!"High Efficiency
!"88% @ 10W, 8Ω
!"81% @ 15W, 4Ω
!"Dynamic Range = 102 dB
!"Mute and Sleep inputs
!"Turn-on & turn-off pop suppression
!"Over-current protection
!"Over-temperature protection
!"Bridged outputs
!"30-pin Power SOP package
Typical Performance
THD+N versus Output Power
10
VDD = 12V
5 f = 1kHz
Av = 12
BW = 22Hz - 22kHz
2
1
0.5
0.2
0.1
R_L= 8Ω
0.05
0.02
0.01
500m
1
2
5
Output Power (W)
R_L= 4Ω
10
20
TA1101B, Rev. 2.2, 08.17.00
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