AD1928
Rev. B | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Test Conditions............................................................................. 3
Analog Performance Specifications........................................... 3
Crystal Oscillator Specifications................................................. 5
Digital Input/Output Specifications........................................... 5
Power Supply Specifications........................................................ 5
Digital Filters................................................................................. 6
Timing Specifications .................................................................. 6
Absolute Maximum Ratings............................................................ 8
Thermal Resistance ...................................................................... 8
ESD Caution.................................................................................. 8
Pin Configuration and Function Descriptions............................. 9
Typical Performance Characteristics ........................................... 11
Theory of Operation ...................................................................... 13
Analog-to-Digital Converters (ADCs).................................... 13
Digital-to-Analog Converters (DACs).................................... 13
Clock Signals............................................................................... 13
Reset and Power-Down ............................................................. 14
Serial Control Port ..................................................................... 14
Power Supply and Voltage Reference....................................... 15
Serial Data Ports—Data Format............................................... 15
Time-Division Multiplexed (TDM) Modes............................ 15
Daisy-Chain Mode..................................................................... 19
Control Registers ............................................................................ 24
Definitions................................................................................... 24
PLL and Clock Control Registers............................................. 24
DAC Control Registers .............................................................. 25
ADC Control Registers.............................................................. 27
Additional Modes....................................................................... 29
Application Circuits ....................................................................... 30
Outline Dimensions....................................................................... 31
Ordering Guide .......................................................................... 31
REVISION HISTORY
7/11—Rev. A to Rev. B
Deleted References to I
2
C ............................................. Throughout
Changes to Table 10, DSDATAx/ASDATAx Pin Descriptions... 9
2/11—Rev. 0 to Rev. A
Change to Table 2, Introductory Text............................................ 4
Change to Table 4, Introductory Text............................................ 5
Change to Table 7, Introductory Text............................................ 6
Changes to Figure 29, Figure 31, and Figure 32 ......................... 30
Changes to Ordering Guide .......................................................... 31
4/07—Revision 0: Initial Version
