TA2020-020 Ver la hoja de datos (PDF) - Tripath Technology Inc.

Número de pieza

componentes Descripción

Fabricante

TA2020-020

Stereo 20W (4Ω) Class-T Digital Audio Amplifier using Digital Power Processing™ Technology

Tripath Technology Inc. 

B T E C H N I C A L I N F O R M A T I O N

Stereo 20W (4Ω) 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 4Ω

¾0.1% THD+N @12W 4Ω

¾0.18% IHF-IM @ 1W 4Ω

¾High Power

¾13W @ 8Ω, 10% THD+N

¾23W @ 4Ω, 10% THD+N

¾38W EIAJ* VDD=14.4V @ 4Ω

*saturated square wave output

¾High Efficiency

¾88% @ 12W 8Ω

¾81% @ 20W 4Ω

¾Dynamic Range = 103 dB

¾Up to 2X25Wrms @ 4Ω, 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= 8Ω

RL= 4Ω

0.05

0.02

0.01

500m

1

1 of 13

2

3 4 5 6 7 8 9 10

20

Output Power (W)

TA2020-020, Rev. 4.0, 09.00

Share Link: