Multichannel,
24-Bit, 192 kHz, - DAC
AD1833
FEATURES
5 V Stereo Audio System with 3.3 V Tolerant Digital
Interface
Supports 96 kHz Sample Rates on 6 Channels and
192 kHz on 2 Channels
Supports 16-/20-/24-Bit Word Lengths
Multibit - Modulators with
Perfect Differential Linearity Restoration for
Reduced Idle Tones and Noise Floor
Data Directed Scrambling DACs—Least Sensitive to
Jitter
Differential Output for Optimum Performance
DACs Signal-to-Noise and Dynamic Range: 110 dB
–94 dB THD + N—6-Channel Mode
–95 dB THD + N—2-Channel Mode
On-Chip Volume Control per Channel with 1024-Step
Linear Scale
Software Controllable Clickless Mute
Digital De-emphasis Processing
Supports 256 f
S
, 512 f
S
, and 768 f
S
Master
Clock Modes
Power-Down Mode Plus Soft Power-Down Mode
Flexible Serial Data Port with Right-Justified,
Left-Justified, I
2
S Compatible, and DSP Serial Port Modes
Supports Packed Data Mode and TDM Mode
48-Lead LQFP Plastic Package
APPLICATIONS
DVD Video and Audio Players
Home Theater Systems
Automotive Audio Systems
Set-Top Boxes
Digital Audio Effects Processors
FUNCTIONAL BLOCK DIAGRAM
DV
D D 1
DV
D D 2
ZERO FLAGS
AV
D D
OUTLP1
OUTLN1
OUTLP2
OUTLN2
OUTLP3
OUTLN3
OUTRP3
OUTRN3
OUTRP2
OUTRN2
OUTRP1
OUTRN1
CDATA
CLATCH
CCLK
MCLK
RESET
L/RCLK
BCLK
SDIN1
SDIN2
SDIN3
SOUT
DATA
PORT
SPI
PORT
INTERPOLATOR
DAC
INTERPOLATOR
DAC
INTERPOLATOR
DAC
FILTER
ENGINE
INTERPOLATOR
DAC
INTERPOLATOR
DAC
INTERPOLATOR
DAC
AD1833
FILTR FILTD
DGND
AGND
The AD1833 is fully compatible with all known DVD formats,
accommodating word lengths of up to 24 bits at sample rates of
48 kHz and 96 kHz on all six channels while supporting a 192 kHz
sample rate on two channels. It also provides the Redbook stan-
dard 50
ms/15 ms
digital de-emphasis filters at sample rates of
32 kHz, 44.1 kHz, and 48 kHz.
The AD1833 has a very flexible serial data input port that
allows glueless interconnection to a variety of ADCs, DSP chips,
AES/EBU receivers, and sample rate converters. It can be con-
figured in right-justified, left-justified, I
2
S, or DSP serial port
compatible modes. The AD1833 accepts serial audio data in MSB
first, twos complement format. The AD1833 can be operated
from a single 5 V power supply; it also features a separate supply
pin for its digital interface that allows it to be interfaced to devices
using 3.3 V power supplies.
The AD1833 is fabricated on a single monolithic integrated
circuit and is housed in a 48-lead LQFP package for operation
from –40∞C to +85∞C.
GENERAL DESCRIPTION
The AD1833 is a complete, high performance, single-chip, multi-
channel, digital audio playback system. It features six audio
playback channels, each comprising a high performance digital
interpolation filter, a multibit
S-D
modulator featuring Analog
Devices’ patented technology, and a continuous-time voltage-out
analog DAC section. Other features include an on-chip clickless
attenuator and mute capability for each channel, programmed
through an SPI compatible serial control port.
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© 2003 Analog Devices, Inc. All rights reserved.
AD1833–SPECIFICATIONS
TEST CONDITIONS, UNLESS OTHERWISE NOTED
*
Supply Voltages (AV
DD
, DV
DDX
)
Ambient Temperature
Input Clock
Input Signal
Input Sample Rate
Measurement Bandwidth
Word Width
Load Capacitance
Load Impedance
5V
25∞C
12.288 MHz, (8 Mode)
Nominally 1 kHz, 0 dBFS
(Full-Scale)
48 kHz
20 Hz to 20 kHz
24 Bits
100 pF
10 kW
*Performance
is identical for all channels (except for the Interchannel Gain
Mismatch and Interchannel Phase Deviation specifications).
Parameter
Min
Typ
Max
Unit
Test Conditions
ANALOG PERFORMANCE
DIGITAL-TO-ANALOG CONVERTERS
Dynamic Range (20 Hz to 20 kHz, –60 dBFS Input)
with A-Weighted Filter
AD1833A
AD1833A
AD1833C
Total Harmonic Distortion + Noise
106.5
SNR
Interchannel Isolation
DC Accuracy
Gain Error
Interchannel Gain Mismatch
Gain Drift
Interchannel Crosstalk (EIAJ Method)
Interchannel Phase Deviation
Volume Control Step Size (1023 Linear Steps)
Volume Control Range (Max Attenuation)
Mute Attenuation
De-emphasis Gain Error
Full-Scale Output Voltage at Each Pin (Single-Ended)
Output Resistance Measured Differentially
Common-Mode Output Volts
DAC INTERPOLATION FILTER—8 Mode (48 kHz)
Pass Band
Pass-Band Ripple
Stop Band
Stop-Band Attenuation
Group Delay
DAC INTERPOLATION FILTER—4 Mode (96 kHz)
Pass Band
Pass-Band Ripple
Stop Band
Stop-Band Attenuation
Group Delay
110.0
110.5
107.0
–95
–94
–95
–94
110
108
±
3
0.2
80
–120
±
0.1
0.098
+63.5 (0.098)
–63.5 (0.098)
±
0.1
1 (2.8)
150
2.2
–89
dB
dB
dB
dB
dB
dB
dB
dB
dB
%
%
ppm/∞C
dB
Degrees
%
dB (%)
dB (%)
dB
V rms (V p-p)
W
V
f
S
= 96 kHz
Two channels active
Six channels active
96 kHz, two channels active
96 kHz, six channels active
24
70
±
0.01
510
21.768 kHz
dB
kHz
dB
ms
37.7
kHz
dB
kHz
dB
ms
55.034
70
±
0.03
160
DAC INTERPOLATION FILTER—2 Mode (192 kHz)
Pass Band
Pass-Band Ripple
Stop Band
104.85
Stop-Band Attenuation
70
Group Delay
±
1
140
89.954 kHz
dB
kHz
dB
ms
–2–
REV. A
AD1833
MCLK
t
AXBD
AUXBCLK
t
AXLRD
AUXL/RCLK
t
AXDD
MSB
AUX DATA
Figure 5. Auxiliary Interface Timing
ABSOLUTE MAXIMUM RATINGS*
(T
A
= 25∞C, unless otherwise noted.)
AV
DD
, DV
DDX
to AGND, DGND . . . . . . . . –0.3 V to +6.5 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
Digital I/O Voltage to DGND . . . . . –0.3 V to DV
DD2
+ 0.3 V
Analog I/O Voltage to AGND . . . . . . –0.3 V to AV
DD
+ 0.3 V
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . . –40∞C to +85∞C
Storage Temperature Range . . . . . . . . . . . . –65∞C to +150∞C
Maximum Junction Temperature . . . . . . . . . . . . . . . . 150∞C
LQFP,
q
JA
Thermal Impedance . . . . . . . . . . . . . . . . . 91∞C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215∞C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220∞C
*Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability. Only one absolute
maximum rating may be applied at any one time.
ORDERING GUIDE
Model
AD1833AST
AD1833AST-REEL
AD1833CST
AD1833CST-REEL
EVAL-AD1833EB
Temperature Range
–40∞C to +85∞C
–40∞C to +85∞C
–40∞C to +85∞C
–40∞C to +85∞C
Package Description
Low Profile Quad Flat Package
Low Profile Quad Flat Package
Low Profile Quad Flat Package
Low Profile Quad Flat Package
Evaluation Board
Package Option
ST-48
ST-48
ST-48
ST-48
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate
on the human body and test equipment and can discharge without detection. Although the AD1833
features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to
high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid
performance degradation or loss of functionality.
REV. A
–5–
Microcontroller MCU
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