Datasheet > DDX2100

DDX2100

更新时间： 2024-09-14 23:46:47

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DDX2100 数据手册

DDX-2100

All-Digital High Efficiency

Power Amplifier

GENERAL DESCRIPTION

FEATURES

The DDX-2100 power device is a monolithic dual

channel H-Bridge that can provide up to 50 watts

per channel of audio power at very high efficiency.

The DDX-2100 power device contains a logic

interface, integrated bridge drivers, high efficiency

MOSFET output transistors and protection

circuitry. The device may be used as a dual

bridge or reconfigured as a single bridge with

double the output current capability.

•

HIGH OUTPUT CAPABILITY

2 x 50W into 8Ω or 1 x 100W into 4Ω

SINGLE SUPPLY (+9V to +36V)

SMALL PACKAGE

HIGH EFFICIENCY, >88%

THERMAL OVERLOAD AND SHORT

CIRCUIT PROTECTION

BENEFITS

•

COMPLETE SURFACE MOUNT DESIGN

POWER SUPPLY SAVINGS

The benefits of the DDX amplification system are

an all-digital design that eliminates the need for a

digital to analog converter (DAC) and the high

efficiency operation derived from the use of

Apogee's patented damped ternary pulse width

modulation (PWM). This approach provides an

efficiency advantage over conventional Class-D

designs and up to three times the efficiency of

typical Class A/B amplifiers with music input

signals.

APPLICATIONS

•

DIGITAL POWERED SPEAKERS

PC SOUND CARDS

CAR AUDIO

SURROUND SOUND SYSTEMS

DIGITAL AUDIO COMPONENTS

VCC1P

INLA

OUTPL

FET

IBIAS

CONFIG

DRIVER

PROTECTION

PWRDN

AND

PGND1P

VCC1N

DRIVER

FAULT

LOGIC

TRISTATE

OUTNL

FET

TWARN

DRIVER

GNDREF

PGND1N

VCC2P

INLB

INRA

VSIG

OUTPR

FET

DRIVER

VREG2

PGND2P

VCC2N

REGULATORS

VREG1

OUTNR

FET

DRIVER

GNDR1

INRB

PGND2N

Figure 1. Block Diagram

Document #11010001-01

PRELIMINARY – subject to change without notice

November 2001

12 3 4 5 6 7...9

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