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
Order Information| Part Number | Package Type | Weight(g) | Pins | MSL Rating | Peak Temp (°C) | RoHS Status |
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| D2-81431-LR | 128 Ld LQFP | 0.673 | 128 | 3 | 260 | RoHS |
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