Download ADC 6 Specifications
Transcript
ADC12D1800RF www.ti.com SNAS518I – JULY 2011 – REVISED JANUARY 2014 Extended Control Mode ........................................................................................ 6.2.2.1 The Serial Interface ................................................................................ FEATURES ................................................................................................................. 6.3.1 Input Control and Adjust ....................................................................................... 6.3.1.1 AC/DC-coupled Mode ............................................................................. 6.3.1.2 Input Full-Scale Range Adjust .................................................................... 6.3.1.3 Input Offset Adjust ................................................................................. 6.3.1.4 DES/Non-DES Mode .............................................................................. 6.3.1.5 DES Timing Adjust ................................................................................. 6.3.1.6 Sampling Clock Phase (Aperture) Delay Adjust ............................................... 6.3.2 Output Control and Adjust ..................................................................................... 6.3.2.1 SDR / DDR Clock .................................................................................. 6.3.2.2 LVDS Output Differential Voltage ................................................................ 6.3.2.3 LVDS Output Common-Mode Voltage .......................................................... 6.3.2.4 Output Formatting .................................................................................. 6.3.2.5 Demux/Non-demux Mode ......................................................................... 6.3.2.6 Test Pattern Mode ................................................................................. 6.3.2.7 Time Stamp ......................................................................................... 6.3.3 Calibration Feature ............................................................................................. 6.3.3.1 Calibration Control Pins and Bits ................................................................ 6.3.3.2 How to Execute a Calibration .................................................................... 6.3.3.3 Power-on Calibration .............................................................................. 6.3.3.4 On-command Calibration ......................................................................... 6.3.3.5 Calibration Adjust .................................................................................. 6.3.3.6 Read / Write Calibration Settings ................................................................ 6.3.3.7 Calibration and Power-Down ..................................................................... 6.3.3.8 Calibration and the Digital Outputs .............................................................. 6.3.4 Power Down ..................................................................................................... Applications Information .................................................................................................. 6.4.1 THE ANALOG INPUTS ........................................................................................ 6.4.1.1 Acquiring the Input ................................................................................. 6.4.1.2 Driving the ADC in DES Mode ................................................................... 6.4.1.3 FSR and the Reference Voltage ................................................................. 6.4.1.4 Out-Of-Range Indication .......................................................................... 6.4.1.5 Maximum Input Range ............................................................................ 6.4.1.6 AC-coupled Input Signals ......................................................................... 6.4.1.7 DC-coupled Input Signals ......................................................................... 6.4.1.8 Single-Ended Input Signals ....................................................................... 6.4.2 THE CLOCK INPUTS .......................................................................................... 6.4.2.1 CLK Coupling ....................................................................................... 6.4.2.2 CLK Frequency ..................................................................................... 6.4.2.3 CLK Level ........................................................................................... 6.4.2.4 CLK Duty Cycle .................................................................................... 6.4.2.5 CLK Jitter ............................................................................................ 6.4.2.6 CLK Layout ......................................................................................... 6.4.3 THE LVDS OUTPUTS ......................................................................................... 6.4.3.1 Common-mode and Differential Voltage ........................................................ 6.4.3.2 Output Data Rate .................................................................................. 6.4.3.3 Terminating Unused LVDS Output Pins ........................................................ 6.4.4 SYNCHRONIZING MULTIPLE ADC12D1800RFS IN A SYSTEM ....................................... 6.4.4.1 AutoSync Feature .................................................................................. 6.4.4.2 DCLK Reset Feature .............................................................................. 6.4.5 SUPPLY / GROUNDING, LAYOUT AND THERMAL RECOMMENDATIONS ......................... 6.2.2 6.3 6.4 Copyright © 2011–2014, Texas Instruments Incorporated Contents 44 44 46 47 47 47 48 48 48 49 49 49 50 50 50 50 51 52 52 52 52 53 53 53 54 54 54 54 55 55 55 55 56 56 56 56 57 57 58 58 58 58 58 59 59 59 59 59 60 60 60 61 62 3