D2-81434: DAE-1 4-Channel DSP with Dolby Labs algorithm Support and Integrated PWM Controller 128 pin LQFP

The D2Audio™ D2-814xx is a fully self-contained 4-channel digital amplifier controller System-On-Chip (SOC). The D2-814xx enables rapid system design for manufacturers of home theater receivers, multi-room distributed audio systems, and powered speakers.

The D2-814xx contains a high-performance digital switching controller to play any input source on any output channel.

A configurable audio signal processor provides equalization, volume control, tone control, and compression for each channel, also crossover and power limiting for powered speaker applications.

The D2-814xx includes 4-channels I2S/Left-Justified inputs (16-bit to 24-bit, 32kHz to 192kHz), optional S/PDIF receiver (16-bit to 24-bit).

Boot options include: Self-boot from external serial ROM, asynchronous SCI slave boot, and serial slave boot from host uCon.

Please see the part number availability table for additional information on support for D2Audio™ SoundSuite™ firmware, as well as for SRS Labs™ and Dolby Labs™ algorithm support.

Key Features
  • Powerful Digital Audio Management - Reference Design Dependant SRC, Routing, Mixing, Multiple Digital Audio I/O, Tone Control, Parametric EQ, Compression
  • Reduced Audio System Cost for Manufacturers of Class-D Audio Amplifiers
  • Audio Processing Features Enable Optimized Speaker Performance and Delivers Dramatically Improved Sound Quality
  • Minimum Development Cost/Risk/ Time-to-Market
  • Pure Digital Path
  • Superior Dynamic Range
  • >110dB SNR, <0.1% THD+N
  • 20Hz-20kHz ±0.5dB Frequency Response Complete Class-D Amplifier Controller SOC
  • Digital Switching Controller
  • Flexible Audio Input Sources
  • Multiple Controller Synchronization
  • Bridge and Non-Bridged Output Topologies
  • Stand-Alone or Micro-Controller Boot Option
  • 4 Channels
  • Pb-Free (RoHS Compliant) High-Performance Sound
  • Unique Performance for Each Part Number
  • Superior Dynamic Range
  • >110 dB SNR, <0.1% THD+N
  • 20Hz-20kHz ±0.5dB Frequency Response Graceful Protection and Recovery
  • Complete Short-Circuit, Overcurrent, and Overvoltage Fault Protection Pure Digital Path
  • Digital Audio Inputs which Support I2S and Left-Justified Formats with Linear PCM (32kHz to 192kHz, 16 to 24-bit)
  • Digital Audio Input which Supports S/PDIF Format with Linear PCM (32kHz to 192kHz, 16 to 24-bit) Multiple Part Offerings
  • D2-81412-LR: 144 Ld LQFP Supporting D2Audio SoundSuite™
  • D2-81431-LR: 128 Ld LQFP Supporting D2Audio SoundSuite™
  • D2-81435-LR: 128 Ld LQFP Supporting D2Audio SoundSuite™ and DTS™ (SRS) Technology
Typical Diagram
Datasheets
TitleTypeUpdatedSizeOther Languages
D2-81412, D2-81431, D2-81433, D2-81434, D2-81435 DatasheetPDF24 Nov 2015511 KB
User Guides
TitleTypeUpdatedSizeOther Languages
TXS25-4 Evaluation Kit User GuidePDF13 Nov 20141.05 MB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
D2-81434-LR128 Ld LQFP0.6731283260RoHS
D2-81412, D2-81431, D2-81433, D2-81434, D2-81435 Datasheet 24 Nov 2015
TXS25-4 Evaluation Kit User Guide 13 Nov 2014