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Apogee Technology
Apogee Technology

DDX8001 Datasheet Preview

DDX8001 Datasheet

Multi-channel Digital Audio Processor

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DDX8001 pdf
FEATURES
8 Channels of 24-Bit DDX®
100dB SNR and Dynamic Range
32kHz to 192kHz Input Sample Rates
SACD/DSD Input (6 Channel)
24-bit to 36-bit Internal Processing
Digital Gain/Attenuation +58dB to
–100dB in 0.5dB steps
Up to 10 Independent 32-bit User
Programmable Biquads (EQ) per
Channel
I2C Control
8 Channel I2S Inputs and Outputs
3.3V Single Supply Operation
Individual Channel, Master, and
Channel Trim Gain/Attenuation
Bass/Treble Tone Control
Dual 8-Input Mix, Pre and Post EQ, per
channel
Dual Independent Programmable
Limiters/Compressors
Automodes™
* 5-Band Graphic EQ
* 32 Preset EQ Curves
* All 5.1 Bass Management Configs
* 8 Preset Crossover Filters
* Auto Volume Controlled Loudness
* 5.1 to 2 Channel Downmix
* 3 Preset Volume Curves
* 2 Preset Anti-Clipping Modes
* Preset Nighttime Listening Mode
* Preset TV AGC
www.DataSheeInt4pUu.ctomand I2S Output Channel Mapping
AM Noise Reduction and PWM
Frequency Shifting Modes
Soft Volume and Muting
Auto Zero Detect and Invalid Input
Detect Muting
Selectable DDX® Ternary or Binary
PWM output + Variable PWM Speeds
Internal Processing Loop-Through For
Up To 40 Biquads / 2-Channels
QSurround5.1*
* Provided only under License of QSound Labs, Inc.
DDX-8001
DDXMulti-channel
Digital Audio Processor
1.0 GENERAL DESCRIPTION
The DDX-8001 is a single chip solution for digital audio
processing and digital amplifier control, featuring output
capabilities for DDX® (Direct Digital Amplification). In
conjunction with a DDX® power device, it provides high-
quality, high-efficiency, all digital amplification. The device
is extremely versatile allowing for input of nearly all digital
formats including 6.1/7.1 channel, 192kHz/24-bit DVD-Audio,
and SACD. In 5.1 applications the additional two channels
can be used for line-out or headphone drive.
Also provided in the DDX-8001 are a full assortment of
digital processing features. This includes up to 10
programmable 32-bit biquads (EQ) per channel, bass/treble
tone control, and dual 8-input mixing blocks per channel.
Automodes™ enable a time-to-market advantage by
substantially reducing the amount of software development
needed for certain functions. This includes all possible 5.1
bass management configurations with simple large/small/off
control settings. New advanced AM radio mode solves one
of the most common concerns using switching power
amplifiers.
The serial audio data input and output interfaces accept all
possible formats, including the popular I2S format. Eight
channels of DDX® processing are provided with capabilities
of controlling the output switching frequency or modulation.
This high quality conversion from PCM audio to DDX’s
patented tri-state PWM switching waveform provides over
100dB SNR and dynamic range.
The DDX-8001 is a 4th generation DDX® controller and is
uniquely suited for the most demanding applications,
providing an audiophile experience without parallel.
Specifications are subject to change without notice.
129 Morgan Drive, Norwood, MA 02062 voice: (781) 551-9450 fax: (781) 440-9528 email: apogee@apogeeddx.com
CONTROLLED DOCUMENT: P_903-000040_Rev19 DDX-8001 Data Sheet.doc
DRN: PRELIMINARY Page 1 of 49



Apogee Technology
Apogee Technology

DDX8001 Datasheet Preview

DDX8001 Datasheet

Multi-channel Digital Audio Processor

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DDX8001 pdf
DDX-8001
Table of Contents
1.0 GENERAL DESCRIPTION .......................................................................................................................................1
1.1 Pin Function............................................................................................................................................................4
1.2 ABSOLUTE MAXIMUM RATINGS........................................................................................................................6
1.3 THERMAL DATA ...................................................................................................................................................6
1.4 RECOMMENDED DC OPERATING CONDITIONS ............................................................................................6
1.5 PIN DESCRIPTION ...............................................................................................................................................7
1.6 AUDIO PERFORMANCE ......................................................................................................................................9
1.7 PIN CONNECTION (Top View)...........................................................................................................................11
2.0 DDX-8001 I2C BUS SPECIFICATION....................................................................................................................12
2.1 COMMUNICATION PROTOCOL........................................................................................................................12
2.2 DEVICE ADDRESSING.......................................................................................................................................12
2.3 WRITE OPERATION ...........................................................................................................................................12
2.4 READ OPERATION.............................................................................................................................................13
3.0 Register Description ................................................................................................................................................15
3.1 Configuration Register A (address 00h)..............................................................................................................16
3.2 Configuration Register B : Serial Input Formats (Address 01h) .........................................................................18
3.3 Configuration Register C : Serial Output Formats (Address 02h) ......................................................................20
3.4 Configuration Register D : PWM Output Formatting (Address 03h) ..................................................................21
3.5 Configuration Register E : Binary Output Selection (Address 04h) ...................................................................22
3.6 Configuration Register F (Address 05h)..............................................................................................................22
3.7 Configuration Register G (Address 06h) .............................................................................................................23
3.8 Configuration Register H (Address 07h) .............................................................................................................24
3.9 Configuration Register I (Address 08h) ...............................................................................................................25
3.10 Volume Control.....................................................................................................................................................25
3.11 Input Mapping.......................................................................................................................................................29
3.12 AutoMode™ Registers.........................................................................................................................................30
3.13 Processing Loop Modes ......................................................................................................................................34
3.14 Processing Bypass Modes ..................................................................................................................................35
3.15 Tone Control (Address 2Ch)................................................................................................................................35
3.16 Dynamics Control.................................................................................................................................................36
3.17 PWM Output Timing.............................................................................................................................................38
www.Da4t.a03S.h1eU8estI42eUSr.cPOormuotgpruatmCmhaanbnleePl Mroacpepsisnigng............................................................................................................................................................................................................................................................3490
4.1 EQ – Biquad Equation .........................................................................................................................................40
4.2 Pre-Scale..............................................................................................................................................................40
4.3 Post-Scale ............................................................................................................................................................41
4.4 Mixing ...................................................................................................................................................................41
4.5 Calculating 24-Bit Signed Fractional Numbers from a dB Value........................................................................41
4.6 User Defined Coefficient RAM.............................................................................................................................42
5.0 Design Information ..................................................................................................................................................47
6.0 PACKAGE INFORMATION ....................................................................................................................................48
6.1 Package Outline Drawing ....................................................................................................................................48
6.2 Marking Configuration..........................................................................................................................................49
Table of Figures
Figure 1 - IC-Level Block Diagram ........................................................................................................................... 4
Figure 2 - Channel Signal Flow Diagram .................................................................................................................. 4
Figure 3 - FFT –60dB, 1kHz Output .......................................................................................................................... 9
Figure 4 - FFT Inter-Modulation Distortion 19kHz and 20kHz................................................................................... 9
Figure 5 - THD vs. Power, 1kHz................................................................................................................................ 9
Figure 6 - THD vs. Frequency, 1W............................................................................................................................ 9
Figure 7 - FFT –60dB, 1kHz Output ........................................................................................................................ 10
Specifications are subject to change without notice.
129 Morgan Drive, Norwood, MA 02062 voice: (781) 551-9450 fax: (781) 440-9528 email: apogee@apogeeddx.com
CONTROLLED DOCUMENT: P_903-000040_Rev19 DDX-8001 Data Sheet.doc
DRN: PRELIMINARY Page 2 of 49


Part Number DDX8001
Description Multi-channel Digital Audio Processor
Maker Apogee Technology
Total Page 30 Pages
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