Tr i path Technol ogy, I nc. - Techni cal I nfor m ati on
TA3020 STEREO 300W (4 Ω ) CLASS-T DIGITAL AUDIO AMPLIFIER DRI...
Tr i path Technol ogy, I nc. - Techni cal I nfor m ati on
TA3020 STEREO 300W (4 Ω ) CLASS-T DIGITAL AUDIO AMPLIFIER DRIVER USING DIGITAL POWER PROCESSING (DPP T M ) TECHNOLOGY
Technical Information Revision 3.0 – September 2003
GENERAL DESCRIPTION
The TA3020 is a two-channel, 300W (4Ω) per channel Amplifier Driver IC that uses Tripath’s 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
FEATURES
Audio/Video
Amplifiers & Receivers Pro-audio
Amplifiers Automobile Power
Amplifiers Subwoofer
Amplifiers
BENEFITS
Reduced system cost with smaller/less expensive power supply and heat sink Signal fidelity equal to high quality ClassAB
amplifiers High dynamic range compatible with digital media such as CD and DVD
TYPICAL PERFORMANCE
THD+N versus Output Power versus Supply
Voltage RL = 4Ω
f = 1kHz BBM = 80nS BW = 22Hz - 22kHz 39V
10 5
2 1
45V
54V
THD+N (%)
0.5
0.2 0.1
0.05
w
w
w
.d
at
h s a
0.02 0.01 1
t e e
. u 4
m o c
2
5
10
20
50
100
200
500
Output Power (W)
1
TA3020 – KL Rev. 3.0/09.03
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C l a s s - T a r c h i te c tu r e Proprietary Digital Power Processing technology “Audiophile” Sound Quality 0.02% THD+N @ 50W, 8Ω 0.03% IHF-IM @ 30W, 8Ω High Efficiency 95% @ 150W @ 8Ω 90% @ 275W @ 4Ω Supports wide range of output power levels Up to 300W/channel (4Ω), single-ended outputs Up to 1000W (4Ω), bridged o...