LTC2000A
TABLE OF CONTENTS
Features ..................................................... 1
Applications ................................................ 1
Block Diagram.............................................. 1
Description.................................................. 1
Absolute Maximum Ratings.............................. 3
Pin Configuration .......................................... 3
Order Information.......................................... 4
Electrical Characteristics ................................. 5
Timing Characteristics .................................... 8
Typical Performance Characteristics ................... 9
Pin Functions .............................................. 16
Block Diagram............................................. 17
Timing Diagrams ......................................... 18
Operation................................................... 18
Introduction ............................................................ 18
Dual-Port Mode ...................................................... 19
Single-Port Mode.................................................... 19
Serial Peripheral Interface (SPI) .............................22
Power-On Reset......................................................22
Power Down ...........................................................22
Reference Operation ...............................................22
Setting the Full-Scale Current .................................23
DAC Transfer Function ............................................ 24
Analog Outputs (IOUTP/N)........................................ 24
DAC Sample Clock (CKP/N) .................................... 25
Divided Clock Output (DCKOP/N)............................25
LVDS Data Clock Input (DCKIP/N) .......................... 25
LVDS Data Input Ports (DAP/N, DBP/N) ................. 26
Clock Synchronizer ................................................. 27
Minimizing Harmonic Distortion .............................29
Measuring LVDS Input Timing Skew.......................29
Measuring Internal Junction Temperature (TJ) ....... 32
Pattern Generator ................................................... 32
SPI Register Summary................................... 33
Applications Information ................................ 34
Sample Start-Up Sequence.....................................34
Output Configurations ...........................................35
Generating the DAC Sample Clock ..........................35
Synchronizing Multiple LTC2000As in Dual-Port
Mode ......................................................................36
Synchronizing Multiple LTC2000As in Single-Port
Mode ......................................................................38
PCB Layout Considerations ....................................40
Pin Locations (LTC2000A-16) ........................... 45
Pin Locations (LTC2000A-14) ........................... 47
Pin Locations (LTC2000A-11) ........................... 49
Package Description ..................................... 51
Typical Application ....................................... 52
Related Parts .............................................. 52
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