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Analog Devices Semiconductor Electronic Components Datasheet

AD1933 Datasheet

8 DAC

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AD1933 pdf
FEATURES
PLL generated or direct master clock
Low EMI design
DAC with 110 dB dynamic range and SNR
−96 dB THD + N
3.3 V single supply
Tolerance for 5 V logic inputs
www.DataSheeSt4uUp.pcoomrts 24 bits and 8 kHz to 192 kHz sample rates
Differential DAC output
Log volume control with autoramp function
SPI® controllable for flexibility
Software-controllable clickless mute
Software power-down
Right-justified, left-justified, I2S, and TDM modes
Master and slave modes up to 16-channel input/output
64-lead LQFP
APPLICATIONS
Automotive audio systems
Home Theater Systems
Set-top boxes
Digital audio effects processors
8 DAC with PLL,
192 kHz, 24-Bit Codec
AD1933
GENERAL DESCRIPTION
The AD1933 is a high performance, single chip that provides
eight digital-to-analog converters (DACs) with differential
output using the Analog Devices, Inc. patented multibit sigma-
delta (Σ-Δ) architecture. An SPI port is included, allowing a
microcontroller to adjust volume and many other parameters.
The AD1933 operates from 3.3 V digital and analog supplies.
The AD1933 is available in a 64-lead (differential output) LQFP.
Other members of this family include a single-ended DAC
output and I2C® control port version.
The AD1933 is designed for low EMI. This consideration is
apparent in both the system and circuit design architectures.
By using the on-board PLL to derive the master clock from the
LR clock or from an external crystal, the AD1933 eliminates the
need for a separate high frequency master clock and can also be
used with a suppressed bit clock. The DACs are designed using
the latest Analog Devices continuous time architectures to
further minimize EMI. By using 3.3 V supplies, power
consumption is minimized, further reducing emissions.
DIGITAL AUDIO
INPUT/OUTPUT
AD1933
FUNCTIONAL BLOCK DIAGRAM
SERIAL
DATA
PORT
CLOCKS
SDATAIN
TIMING MANAGEMENT
AND CONTROL
(CLOCK AND PULL)
DIGITAL
FILTER
AND
VOLUME
CONTROL
PRECISION
VOLTAGE
REFERENCE
CONTROL PORT
I2C/SPI
CONTROL DATA
INPUT/OUTPUT
Figure 1.
6.144MHz
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
ANALOG
AUDIO
OUTPUTS
Rev. 0
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. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2007 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

AD1933 Datasheet

8 DAC

No Preview Available !

AD1933 pdf
AD1933
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
www.DataShTeeestt4CU.ocnodmitions............................................................................. 3
Analog Performance Specifications ........................................... 3
Crystal Oscillator Specifications................................................. 4
Digital Input/Output Specifications........................................... 4
Power Supply Specifications........................................................ 5
Digital Filters................................................................................. 5
Timing Specifications .................................................................. 6
Absolute Maximum Ratings............................................................ 7
Thermal Resistance ...................................................................... 7
ESD Caution.................................................................................. 7
Pin Configuration and Function Descriptions............................. 8
Typical Performance Characteristics ........................................... 10
Theory of Operation ...................................................................... 11
REVISION HISTORY
10/07—Revision 0: Initial Version
Digital-to-Analog Converters (DACs) .................................... 11
Clock Signals............................................................................... 11
Reset and Power-Down ............................................................. 11
Serial Control Port ..................................................................... 12
Power Supply and Voltage Reference....................................... 13
Serial Data Ports—Data Format............................................... 13
Time-Division Multiplexed (TDM) Modes............................ 13
Daisy-Chain Mode ..................................................................... 15
Control Registers ............................................................................ 19
Definitions................................................................................... 19
PLL and Clock Control Registers............................................. 19
DAC Control Registers .............................................................. 20
Auxiliary TDM Port Control Registers ................................... 22
Additional Modes....................................................................... 23
Application Circuits ....................................................................... 24
Outline Dimensions ....................................................................... 25
Ordering Guide .......................................................................... 25
Rev. 0 | Page 2 of 28


Part Number AD1933
Description 8 DAC
Maker Analog Devices
Total Page 28 Pages
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