8-Channel DAC with PLL and Differential Outputs, 192 kHz, 24 Bits Data Sheet AD1933 FEATURES GENERAL DESCRIPTION PLL generated or direct master clock The AD1933 is a high performance, single chip that provides Low EMI design eight digital-to-analog converters (DACs) with differential DAC with 110 dB dynamic range and SNR output using the Analog Devices, Inc., patented multibit sigma- 96 dB THD + N delta (-) architecture. An SPI port is included, allowing a 3.3 V single supply microcontroller to adjust volume and many other parameters. Tolerance for 5 V logic inputs The AD1933 operates from 3.3 V digital and analog supplies. Supports 24 bits and 8 kHz to 192 kHz sample rates The AD1933 is available in a 64-lead (differential output) LQFP. Differential DAC output Other members of this family include a single-ended DAC Log volume control with autoramp function output version. SPI controllable for flexibility The AD1933 is designed for low EMI. This consideration is Software-controllable clickless mute apparent in both the system and circuit design architectures. Software power-down By using the on-board PLL to derive the master clock from the 2 Right-justified, left-justified, I S, and TDM modes LR clock or from an external crystal, the AD1933 eliminates the Master and slave modes up to 16-channel input/output need for a separate high frequency master clock and can also be 64-lead LQFP used with a suppressed bit clock. The DACs are designed using Qualified for automotive applications the latest Analog Devices continuous time architectures to APPLICATIONS further minimize EMI. By using 3.3 V supplies, power consumption is minimized, further reducing emissions. Automotive audio systems Home Theater Systems Set-top boxes Digital audio effects processors FUNCTIONAL BLOCK DIAGRAM AD1933 DAC DAC DAC DIGITAL DAC ANALOG FILTER AUDIO AND OUTPUTS VOLUME DAC CLOCKS CONTROL SERIAL TIMING MANAGEMENT DIGITAL AUDIO DATA AND CONTROL DAC SDATAIN INPUT/OUTPUT PORT (CLOCK AND PULL) DAC DAC PRECISION CONTROL PORT VOLTAGE REFERENCE SPI 6.144MHz CONTROL DATA INPUT/OUTPUT Figure 1. Rev. E Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20072013 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com 06624-001AD1933 Data Sheet TABLE OF CONTENTS Digital-to-Analog Converters (DACs) .................................... 11 Features .............................................................................................. 1 Clock Signals ............................................................................... 11 Applications ....................................................................................... 1 Reset and Power-Down ............................................................. 11 General Description ......................................................................... 1 Serial Control Port ..................................................................... 12 Functional Block Diagram .............................................................. 1 Power Supply and Voltage Reference ....................................... 13 Revision History ............................................................................... 2 Serial Data PortsData Format ............................................... 13 Specifications ..................................................................................... 3 Time-Division Multiplexed (TDM) Modes ............................ 13 Test Conditions ............................................................................. 3 Daisy-Chain Mode ..................................................................... 15 Analog Performance Specifications ........................................... 3 Control Registers ............................................................................ 19 Crystal Oscillator Specifications................................................. 4 Definitions ................................................................................... 19 Digital Input/Output Specifications........................................... 4 PLL and Clock Control Registers ............................................. 19 Power Supply Specifications........................................................ 5 DAC Control Registers .............................................................. 20 Digital Filters ................................................................................. 5 Auxiliary TDM Port Control Registers ................................... 22 Timing Specifications .................................................................. 6 Additional Modes ....................................................................... 23 Absolute Maximum Ratings ............................................................ 7 Application Circuits ....................................................................... 24 Thermal Resistance ...................................................................... 7 Outline Dimensions ....................................................................... 25 ESD Caution .................................................................................. 7 Ordering Guide .......................................................................... 25 Pin Configuration and Function Descriptions ............................. 8 Automotive Products ................................................................. 25 Typical Performance Characteristics ........................................... 10 Theory of Operation ...................................................................... 11 REVISION HISTORY 2/13Rev. D to Rev. E 1/11Rev. A to Rev. B Changes to tCLH Comments, Table 7 ............................................... 6 Changes to Features .......................................................................... 1 Changes to Serial Control Port Section ....................................... 12 Change to Table Summary, Table 2 and Table Summary, Table 4 .................................................................... 4 10/11Rev. C to Rev. D Changes to Table Summary, Table 7 ............................................... 6 Changes to Pin 14 in Figure 2 and Table 10 .................................. 8 9/09Rev. 0 to Rev. A Changes to Ordering Guide .......................................................... 25 Added Automotive Products Section........................................... 25 Change to Title ...................................................................................1 Change to Table 10 ............................................................................ 9 7/11Rev. B to Rev. C Change to Power Supply and Voltage Reference Section .......... 13 2 Deleted Reference to I C ............................................... Throughout Updated Outline Dimensions ....................................................... 25 Changes to Table 10, DSDATAx/AUXDATA1 Pin Changes to Ordering Guide .......................................................... 25 Descriptions ...................................................................................... 8 10/07Revision 0: Initial Version Rev. E Page 2 of 28