D2-45157-QR-T中文资料Intersil数据手册PDF规格书

The D2-45057 and D2-45157 devices are complete

System-on-Chip (SoC) Class-D digital audio amplifiers.

Combining high performance integrated Power Stages

along with an optimized Audio Processor feature set and

PWM Controller, these devices offer a complete,

powerful, and very cost effective audio solution for high

volume and cost-critical products.

This 4th generation Digital Audio Engine (DAE-4P)™

device combines extensive integrated Digital Signal

Processor (DSP) audio processing with amplifier control,

for a complete audio solution. Its ease of integration into

the existing system processor provides complete support

for all system product and amplifier functions.

The four configurable Power Stages operate as four

separate Half-Bridge outputs, as two Full-Bridge outputs,

or in combinations of Half-Bridge plus Full-Bridge,

providing flexible loudspeaker drive solutions. Separate

PWM outputs provide additional combinations to drive

headphone, or line level stereo and subwoofer outputs.

特性 Features

• All Digital Class-D Amplifier and Controller with

Integrated Digital Signal Processing (DSP)

• Four Integrated Power Stages Supporting

- 2 Channels, Bridged

- 4 Channels, Half-Bridge

- 2 Channels, Half-Bridge, plus 1 Channel Bridged

• Output Power (Bridged)

- 25W (8Ω, <1 THD); 30W (8Ω, <10 THD)

• Fully Programmable Digital Signal Processing (DSP)

- Up to 5 Programmable Audio Signal Path Channels

- Programmable Equalizers, Filters, Mixers, Limiters

• Includes D2Audio™ SoundSuite™ and

SRS WOW/HD™ Audio Enhancement Algorithms

• I2S and S/PDIF™ Digital Audio Inputs

• Asynchronous Sample Rate Converters;

Sample Rates from 32kHz up to 192kHz

• Wide 9V to 26V Power Stage HV Supply Range, plus

Internally-Generated Gate Drive Supply

• Temperature and Undervoltage Monitoring

and Individual Channel Protection

Applications

• PC/Multimedia Speakers

• Digital TV Audio Systems

• Portable Device Docking Stations

• Powered Speaker Systems