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TA2020-020 Datasheet Preview

TA2020-020 Datasheet

Stereo 20W Class-T Digital Audio Amplifier using Digital Power Processing

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BT E C H N I C A L I N F O R M A T I O N
Stereo 20W (4) Class-T Digital Audio Amplifier using
Digital Power ProcessingTM Technology
TA2020-020
September, 2000
General Description
The TA2020-020 is a 20W continuous average two-channel Class-T Digital Audio Power
Amplifier IC using Tripath’s proprietary Digital Power ProcessingTM technology. Class-T
amplifiers offer both the audio fidelity of Class-AB and the power efficiency of Class-D
amplifiers.
Applications
¾DVD Players
¾Mini/Micro Component Systems
¾Automotive Audio
¾Computer / PC Multimedia
¾Cable Set-Top Products
¾Televisions
¾Battery Powered Systems
Benefits
¾Fully integrated solution with FETs
¾ Easier to design-in than Class-D
¾ Reduced 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
Typical Performance
Features
¾Class-T architecture
¾Single Supply Operation
¾“Audiophile” Quality Sound
¾0.03% THD+N @ 10W 4
¾0.1% THD+N @12W 4
¾0.18% IHF-IM @ 1W 4
¾High Power
¾13W @ 8, 10% THD+N
¾23W @ 4, 10% THD+N
¾38W EIAJ* VDD=14.4V @ 4
*saturated square wave output
¾High Efficiency
¾88% @ 12W 8
¾81% @ 20W 4
¾Dynamic Range = 103 dB
¾Up to 2X25Wrms @ 4, VDD=14.6V
¾Mute and Sleep inputs
¾Turn-on & turn-off pop suppression
¾Over-current protection
¾Over-temperature protection
¾Bridged outputs
¾32-pin SSIP package
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
1 of 13
2 3 4 5 6 7 8 9 10
Output Power (W)
20
TA2020-020, Rev. 4.0, 09.00




ETC

TA2020-020 Datasheet Preview

TA2020-020 Datasheet

Stereo 20W Class-T Digital Audio Amplifier using Digital Power Processing

No Preview Available !

BT E C H N I C A L I N F O R M A T I O N
Absolute Maximum Ratings (Note 1)
SYMBOL
VDD
TSTORE
TA
TJ
PARAMETER
Supply Voltage
Storage Temperature Range
Operating Free-air Temperature Range
Junction Temperature
Value
16
-40° to 150°
-40° to 85°
150°
UNITS
V
C
C
C
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Operating Conditions (Note 2)
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 2: Recommended Operating Conditions indicate conditions for which the device is functional.
See Electrical Characteristics for guaranteed specific performance limits.
Thermal Characteristics
SYMBOL
θJC
θJA
PARAMETER
Junction-to-case Thermal Resistance
Junction-to-ambient Thermal Resistance
Value
3.5°
15°
UNITS
C/W
C/W
2 of 13
TA2020-020, Rev. 4.0, 09.00


Part Number TA2020-020
Description Stereo 20W Class-T Digital Audio Amplifier using Digital Power Processing
Maker ETC
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