TA2024数字功放芯片
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TECHNICAL INFORMATION
TA2024 Preliminary, Rev. 1.0 Page 1
Stereo 10W (4
Ω
ΩΩ
Ω
) Class-T™ Digital Audio Amplifier using
Digital Power Processing™ Technology TA2024
February 27, 2001 – Preliminary Rev. 1.0
General Description
The TA2024 is a 10W/ch 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
¾Computer/PC Multimedia
¾DVD Players
¾Cable Set-Top Products
¾Televisions
¾Video CD Players
¾Battery Powered Systems
Benefits
¾Fully integrated solution with FETs
¾Easier to design-in than Class-D
¾Reduced system cost with no heat sink
¾Dramatically improves efficiency versus
Class-AB
¾Signal fidelity equal to high quality linear
amplifiers
¾High dynamic range compatible with digital
media such as CD, DVD, and Internet audio
Features
¾Class-T architecture
¾Single Supply Operation
¾“Audiophile” Quality Sound
¾0.04% THD+N @ 9W, 4
Ω
¾0.18% IHF-IM @ 1W, 4
Ω
¾6W @ 8
Ω
, 0.1% THD+N
¾11W @ 4
Ω
, 0.1% THD+N
¾High Power
¾10W @ 8
Ω
, 10% THD+N
¾15W @ 4
Ω
, 10% THD+N
¾High Efficiency
¾88% @ 10W, 8
Ω
¾81% @ 15W, 4
Ω
¾Dynamic Range = 102 dB
¾Mute and Sleep inputs
¾Turn-on & turn-off pop suppression
¾Over-current protection
¾Over-temperature protection
¾Bridged outputs
¾36-pin Power SOP package
Typical Performance
THD+N (%)
Output Power (W)
THD+N versus Output Power
1
2
5
0.02
0.01
0.05
0.1
0.2
0.5
10
1 2 5 10 20500m
R
L
= 4
Ω
R
L
= 8
Ω
VDD = 12V
f = 1kHz
Av = 12
BW = 22Hz - 22kHz
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