Intelligent Digital Amplifier PWM Controller and Audio Processor

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.

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 DTS®(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