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