DATASHEET
D2-41051, D2-41151
Intelligent Digital Amplifier PWM Controller and Audio Processor
FN6783
Rev.1.00
May 5, 2016
The D2-41051 and D2-41151 (D2-41x51-QR) devices are
Features
complete System-on-Chip (SoC) Audio Processor and Class-D
Amplifier Controllers, offering a powerful yet very cost effective
audio solution for high volume consumer products, including
Digital TV systems, PC Multimedia Speakers, and Portable
Device Docking Stations. This 4th generation Digital Audio
Engine (DAE-4)™ device combines extensive integrated DSP
processing and configurable audio processing algorithms, for
complete audio system control. The D2-41x51-QR devices are
built upon the proven technology present in D2Audio's D2-
814xx, D2-914xx, and D2-926xx families of Class-D Controller
ICs, while providing an optimized feature set for high volume
and cost-critical products.
• All Digital Class-D Amplifier Controller with Integrated Digital
Signal Processing (DSP)
• Fully Programmable Audio Signal Path Parameters
• Up to 5 Channels of Digital Signal Processing (DSP)
• Includes Equalizers, Filters, Mixers and Other Common
Audio Processing Blocks
• Audio Enhancement Algorithms Included
2
• I S and S/PDIF™ Digital Audio Stereo Inputs
2
• I C Host Control Port
• Asynchronous Sample Rate Converters, Sample Rates from
32kHz up to 192kHz
The D2Audio D2-41x51-QR devices offer the optimum balance
of functionality and lowest system material cost, especially in
an SoC system architectures with I S audio output. All audio
processing and amplifier control is handled by the
D2-41x51-QR, and its ease of integration to the existing
system processor handles all system control functions.
2
• Supports 2.0, 2.1 or Bi-Amp Amplifier Outputs with Discrete
or Integrated Power Stages
Applications
• PC/Multimedia Speakers
• Digital TV Audio Systems
• Portable Device Docking Stations
• Powered Speaker Systems
Related Literature
• D2-41x51-QR Technical Reference
• DAE-4 Evaluation Board Guides
Typical Application
PWM0
I2S
DIGITAL
AUDIO
INTERFACE
OUTPUT
FILTER
DRIVER FETs
DRIVER FETs
DRIVER FETs
PWM1
SoC
SYSTEM
CONTROLLER(S)
24 BIT
DIGITAL
SIGNAL
2 CHANNEL
SAMPLE
RATE
LEFT
5 CHANNEL
PWM
ENGINE
PWM2
PWM3
OUTPUT
FILTER
I2C
PROCESSOR
CONVERTER
I2C
CONTROL
RIGHT
(OPTIONAL)
PWM4
PWM5
PWM
OUTPUT
DRIVE
OUTPUT
FILTER
OPTICAL/
COAX IN
S/PDIF
BUFFER
D2AUDIO®
AUDIO
CANVAS™
PROCESSING
S/PDIF
DIGITAL
I/O
3RD PARTY
D2AUDIO®
SOUNDSUITE™
SUBWOOFER
ENHANCEMENTS
(OPTIONAL)
(SRS WOW/HD®)
PWM6
PWM7
OUTPUT
FILTER
INTERFACE
STEREO
LINE OUT
OPTICAL/
COAX OUT
S/PDIF
BUFFER
OR
OUTPUT
FILTER
HEADPHONE OUT
D2-41x51-QR
DAE-4™ PWM CONTROLLER AND AUDIO PROCESSOR
FN6783 Rev.1.00
May 5, 2016
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