TECHNICAL INFORMATION
Stereo 10W (4Ω) Class-T™ Digital Audio Amplifier using Digital Power Processing™ Technology TA110...
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
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
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
Typical Performance
THD+N versus Output Power
10 5 VDD = 12V f = 1kHz Av = 12 BW = 22Hz - 22kHz
2 1
THD+N (%)
0.5
0.2 0.1 0.05
RL= 8Ω
RL...