D2-3(S) Audio SOC
Intelligent Digital Amplifier and Sound Processor
FN6787
Rev.4.01
Oct 24, 2022
The D2-3(S) family (D2-92633-LR, D2-92634-LR,
D2-92643-LR, D2-92683-QR, D2-92684-QR) of the D2-3 and
D2-3S Digital Audio Processor devices are complete
System on Chip (SoC) multi-channel digital sound processors
and Class-D amplifier controllers.
Features
• Advanced D2-3 family Digital Audio Processor IC family
- D2-3 family pin compatible and function/feature
compatible with the D2 Audio DSP D2-6 device family
- D2-3S family - identical D2-3 family performance, in a
72 Ld QFN package
The integrated DSP provides efficient and configurable audio
signal path processing including equalization, dynamic range
compression, mixing, and filtering that is completely
• Integrated Digital Sound Processing (DSP)
- Customizable audio path sound processing
configurable using the D2 Audio Customization GUI v3 high
level programming interface. The integrated PWM engine
supports programmable and dynamic control of audio output,
enabling a variety of multi-channel output configurations and
output power capacity. Internal noise shaping, an embedded
asynchronous sample rate converter, dynamic level-dependent
timing, and high resolution operation support power stage
audio performances with SNR >110dB and THD+N <0.01%.
- Fully configurable and routable audio signal paths and
hardware function assignment
- Fully supported with the D2 Audio Customization GUI v3
Design Tool
• Flexible audio input and output configurations
- 12 independent PWM engine channels
2
The D2-3(S) devices are provided in two package and feature
configurations which include the 128 Ld D2-3 family and the
72-pin D2-3S family. Both the D2-3 and D2-3S family provide
identical performance and enable an extremely flexible
platform for feature rich and cost-affordable quality audio
solutions, which benefit from the addition of Class-D amplifiers
and DSP audio processing.
- Four independent asynchronous I S digital inputs
- Integrated high-performance stereo ADC (D2-3 family only)
- S/PDIF™ digital audio inputs supporting
linear IEC-61958 PCM or compressed IEC-61937 audio
- S/PDIF digital audio PCM output
• Embedded 8-channel sample rate converter
• Real-time amplifier control and monitoring
The 12 integrated digital PWM controllers can be used in a
variety of multi-channel audio system configurations,
supporting powered as well as line outputs. Fully protected
amplifier control provides efficient and clean Class-D power
output support.
- Supports bridged, half-bridged, and Bridge-Tied Load (BTL)
topologies, using discrete or integrated power stages
- Complete fault protection with automatic recovery
• D2 Audio DSP Sound Enhancement Algorithms and
virtualization
Applications
• Enhanced audio processing decoders and virtualization
- Dolby® Digital/AC3
- Dolby® Virtual Speaker
- DTS®(SRS) TruSurround HD4™, DTS®(SRS) WOW HD™,
DTS®(SRS) TruVolume™
• DTV and Blu-ray Soundbar
• DVD and Blu-ray Home Theater Systems
• Home Theater in a Box (HTiB)
• Audio Video Receiver (AVR)
• Multi-Channel Multi-Media (MM) Systems
• Multi-Room Distributed Audio (MRDA)
• Powered speaker systems
• Automotive trunk/amplified solutions
FN6787 Rev.4.01
Oct 24, 2022
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