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TA2021 Datasheet Preview

TA2021 Datasheet

DIGITAL AUDIO AMPLIFIER DRIVER

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Tripath Technology, Inc. - Technical Information
TA 2 0 2 1
STEREO 20W (4) CLASS-T™ DIGITAL AUDIO AMPLIFIER DRIVER
USING DIGITAL POWER PROCESSING (DPP™) TECHNOLOGY
Technical Information
Preliminary Revision 1.0 – April 2002
GENERAL DESCRIPTION
The TA2021 is a 20W (4) continuous average per channel Class-T Digital Audio
Power Amplifier IC using 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
DVD Receivers
Mini/Micro Component Systems
Computer / PC Multimedia
Cable Set-Top Products
Televisions
Battery Powered Systems
BENEFITS
Fully integrated solution with internal FETs
Easier to design-in than Class-D
Dramatically improves efficiency versus
Class-AB amplifiers
Signal fidelity equal to high quality linear
amplifiers
High dynamic range compatible with digital
media such as CD and DVD, and internet
audio
TYPICAL PERFORMANCE
THD+N versus Output Power
10
5
VDD = 13.5V
Av = 12
f = 1kHz
2 BW = 22Hz - 22kHz
1
0.5
0.2
0.1
RL= 8
RL= 4
0.05
0.02
0.01
500m
1
2 3 4 5 6 7 8 9 10
Output Power (W)
20
FEATURES
Class-T architecture
Single Supply Operation
“Audiophile” Quality Sound
0.03% THD+N @ 10W 4
0.1% THD+N @12W 4
0.18% IHF-IM @ 1W 4
High Power
13W @ 8, 10% THD+N
22W @ 4, 10% THD+N
38W EIAJ* VDD=14.4V @ 4
*saturated square wave output
High Efficiency
88% @ 12W 8
81% @ 20W 4
Dynamic Range = 103 dB
Up to 2x25Wrms @ 4, VDD=14.6V
Mute and Sleep inputs
Turn-on & turn-off pop suppression
Over-current protection
Over-temperature protection
Bridged outputs
36-pin PSOP package
1 TA2021 – MTI/1.0/04-02




TRIPATH

TA2021 Datasheet Preview

TA2021 Datasheet

DIGITAL AUDIO AMPLIFIER DRIVER

No Preview Available !

Tripath Technology, Inc. - Technical Information
A B S O L U T E M A X I M U M R A T I N G S (Note 1)
SYMBOL
VDD
V5
SLEEP
MUTE
TSTORE
TA
TJ
PARAMETER
Supply Voltage
Input Section Supply Voltage
SLEEP Input Voltage
MUTE Input Voltage
Storage Temperature Range
Operating Free-air Temperature Range
Junction Temperature
Value
16
6.0
-0.3 to 6.0
-0.3 to V5+0.3
-40 to 150
-40 to 85
150
UNITS
V
V
V
V
°C
°C
°C
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may
occur. See the table below for Operating Conditions.
Note 2: Human body model, 100pF discharged through a 1.5Kresistor.
Note 3: Machine model, 220pF discharged through all pins.
O P E R A T I N G C O N D I T I O N S (Note 4)
SYMBOL
VDD
VIH
VIL
PARAMETER
Supply Voltage
High-level Input Voltage (MUTE, SLEEP)
Low-level Input Voltage (MUTE, SLEEP)
MIN.
8.5
3.5
TYP.
13.5
MAX.
14.6
1
UNITS
V
V
V
Note 4: Recommended Operating Conditions indicate conditions for which the device is
functional. See Electrical Characteristics for guaranteed specific performance limits.
2 Product Name – Initial/Rev. #


Part Number TA2021
Description DIGITAL AUDIO AMPLIFIER DRIVER
Maker TRIPATH
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TA2021 Datasheet PDF






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