TA1101B

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...