AD9773 Analog Devices, AD9773 Datasheet - Page 2
AD9773
Manufacturer Part Number
AD9773
Description
Manufacturer
Analog Devices
Datasheet
1.AD9773.pdf
(60 pages)
Specifications of AD9773
Resolution (bits)
12bit
Dac Update Rate
400MSPS
Dac Settling Time
11ns
Max Pos Supply (v)
+3.5V
Single-supply
Yes
Dac Type
Current Out
Dac Input Format
Par
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AD9773
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Table of Contents .............................................................................. 2
General Description ......................................................................... 4
Specifications..................................................................................... 5
Absolute Maximum Ratings............................................................ 9
Pin Configuration and Function Descriptions........................... 10
Typical Performance Characteristics ........................................... 12
Terminology .................................................................................... 17
Functional Description .................................................................. 22
REVISION HISTORY
10/07—Rev. C to Rev. D
Updated Formatting ........................................................ Universal
Changes to Figure 32 .................................................................... 22
Functional Block Diagram .......................................................... 1
Revision History ........................................................................... 2
Product Highlights ....................................................................... 4
DC Specifications ......................................................................... 5
Dynamic Specifications ............................................................... 6
Digital Specifications ................................................................... 7
Digital Filter Specifications ......................................................... 8
Thermal Characteristics .............................................................. 9
ESD Caution.................................................................................. 9
Mode Control (Via SPI Port) .................................................... 18
Register Description................................................................... 20
Serial Interface for Register Control ........................................ 22
General Operation of the Serial Interface ............................... 22
Instruction Byte .......................................................................... 23
Serial Interface Port Pin Descriptions ..................................... 23
MSB/LSB Transfers..................................................................... 23
Notes on Serial Port Operation ................................................ 25
DAC Operation........................................................................... 25
1R/2R Mode ................................................................................ 26
Clock Input Configurations ...................................................... 27
Programmable PLL .................................................................... 27
Power Dissipation....................................................................... 29
Sleep/Power-Down Modes........................................................ 29
Rev. D | Page 2 of 60
Applying the Output Configurations........................................... 46
Evaluation Board ............................................................................ 48
Outline Dimensions ....................................................................... 58
Changes to Figure 108 .................................................................. 54
Updated Outline Dimensions ..................................................... 58
Changes to Ordering Guide......................................................... 58
Two-Port Data Input Mode ...................................................... 30
One-/Two-Port Input Modes.................................................... 30
PLL Enabled, Two-Port Mode .................................................. 30
DATACLK Inversion.................................................................. 31
DATACLK Driver Strength....................................................... 31
PLL Enabled, One-Port Mode .................................................. 31
ONEPORTCLK Inversion......................................................... 31
ONEPORTCLK Driver Strength.............................................. 32
IQ Pairing .................................................................................... 32
PLL Disabled, Two-Port Mode................................................. 32
PLL Disabled, One-Port Mode ................................................. 32
Digital Filter Modes ................................................................... 33
Amplitude Modulation.............................................................. 33
Modulation, No Interpolation .................................................. 34
Modulation, Interpolation = 2× ............................................... 35
Modulation, Interpolation = 4× ............................................... 36
Modulation, Interpolation = 8× ............................................... 37
Zero Stuffing ............................................................................... 38
Interpolating (Complex Mix Mode)........................................ 38
Operations on Complex Signals............................................... 38
Complex Modulation and Image Rejection of Baseband
Signals .......................................................................................... 39
Image Rejection and Sideband Suppression of Modulated
Carriers ........................................................................................ 41
Unbuffered Differential Output, Equivalent Circuit ............. 46
Differential Coupling Using a Transformer............................ 46
Differential Coupling Using an Op Amp................................ 47
Interfacing the AD9773 with the AD8345 Quadrature
Modulator.................................................................................... 47
Ordering Guide .......................................................................... 58