AD9956
TABLE OF CONTENTS
Product Overview............................................................................. 3
Specifications..................................................................................... 4
Loop Measurement Conditions.................................................. 9
Absolute Maximum Ratings.......................................................... 10
ESD Caution................................................................................ 10
Pin Configuration and Function Descriptions........................... 11
Typical Performance Characteristics ........................................... 13
Typical Application Circuits.......................................................... 16
Application Circuit Explanations............................................. 17
General Description ....................................................................... 18
DDS Core..................................................................................... 18
PLL Circuitry .............................................................................. 18
REVISION HISTORY
7/04—Revision: Initial Version
CML Driver................................................................................. 19
Modes of Operation ....................................................................... 20
DDS Modes of Operation ......................................................... 20
Synchronization Modes for Multiple Devices.............................. 20
Serial Port Operation ..................................................................... 22
Instruction Byte .......................................................................... 23
Serial Interface Port Pin Description....................................... 23
MSB/LSB Transfers .................................................................... 23
Register Map and Description ...................................................... 24
Control Function Register Descriptions ................................. 27
Outline Dimensions ....................................................................... 32
Ordering Guide .......................................................................... 32
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