SLVSDR2C November   2018  â€“ March 2025 ADC12DJ3200QML-SP

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics: DC Specifications
    6. 5.6  Electrical Characteristics: Power Consumption
    7. 5.7  Electrical Characteristics: AC Specifications (Dual-Channel Mode)
    8. 5.8  Electrical Characteristics: AC Specifications (Single-Channel Mode)
    9. 5.9  Timing Requirements
    10. 5.10 Switching Characteristics
    11. 5.11 Timing Diagrams
    12. 5.12 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Analog Inputs
        1. 6.3.1.1 Analog Input Protection
        2. 6.3.1.2 Full-Scale Voltage (VFS) Adjustment
        3. 6.3.1.3 Analog Input Offset Adjust
      2. 6.3.2 ADC Core
        1. 6.3.2.1 ADC Theory of Operation
        2. 6.3.2.2 ADC Core Calibration
        3. 6.3.2.3 ADC Overrange Detection
        4. 6.3.2.4 Code Error Rate (CER)
      3. 6.3.3 Timestamp
      4. 6.3.4 Clocking
        1. 6.3.4.1 Noiseless Aperture Delay Adjustment (tAD Adjust)
        2. 6.3.4.2 Aperture Delay Ramp Control (TAD_RAMP)
        3. 6.3.4.3 SYSREF Capture for Multi-Device Synchronization and Deterministic Latency
          1. 6.3.4.3.1 SYSREF Position Detector and Sampling Position Selection (SYSREF Windowing)
          2. 6.3.4.3.2 Automatic SYSREF Calibration
      5. 6.3.5 Digital Down Converters (Dual-Channel Mode Only)
        1. 6.3.5.1 Numerically-Controlled Oscillator and Complex Mixer
          1. 6.3.5.1.1 NCO Fast Frequency Hopping (FFH)
          2. 6.3.5.1.2 NCO Selection
          3. 6.3.5.1.3 Basic NCO Frequency Setting Mode
          4. 6.3.5.1.4 Rational NCO Frequency Setting Mode
          5. 6.3.5.1.5 NCO Phase Offset Setting
          6. 6.3.5.1.6 NCO Phase Synchronization
        2. 6.3.5.2 Decimation Filters
        3. 6.3.5.3 Output Data Format
        4. 6.3.5.4 Decimation Settings
          1. 6.3.5.4.1 Decimation Factor
          2. 6.3.5.4.2 DDC Gain Boost
      6. 6.3.6 JESD204B Interface
        1. 6.3.6.1 Transport Layer
        2. 6.3.6.2 Scrambler
        3. 6.3.6.3 Link Layer
          1. 6.3.6.3.1 Code Group Synchronization (CGS)
          2. 6.3.6.3.2 Initial Lane Alignment Sequence (ILAS)
          3. 6.3.6.3.3 8b, 10b Encoding
          4. 6.3.6.3.4 Frame and Multiframe Monitoring
        4. 6.3.6.4 Physical Layer
          1. 6.3.6.4.1 SerDes Pre-Emphasis
        5. 6.3.6.5 JESD204B Enable
        6. 6.3.6.6 Multi-Device Synchronization and Deterministic Latency
        7. 6.3.6.7 Operation in Subclass 0 Systems
      7. 6.3.7 Alarm Monitoring
        1. 6.3.7.1 NCO Upset Detection
        2. 6.3.7.2 Clock Upset Detection
      8. 6.3.8 Temperature Monitoring Diode
      9. 6.3.9 Analog Reference Voltage
    4. 6.4 Device Functional Modes
      1. 6.4.1 Dual-Channel Mode
      2. 6.4.2 Single-Channel Mode (DES Mode)
      3. 6.4.3 JESD204B Modes
        1. 6.4.3.1 JESD204B Output Data Formats
        2. 6.4.3.2 Dual DDC and Redundant Data Mode
      4. 6.4.4 Power-Down Modes
      5. 6.4.5 Test Modes
        1. 6.4.5.1 Serializer Test-Mode Details
        2. 6.4.5.2 PRBS Test Modes
        3. 6.4.5.3 Ramp Test Mode
        4. 6.4.5.4 Short and Long Transport Test Mode
          1. 6.4.5.4.1 Short Transport Test Pattern
          2. 6.4.5.4.2 Long Transport Test Pattern
        5. 6.4.5.5 D21.5 Test Mode
        6. 6.4.5.6 K28.5 Test Mode
        7. 6.4.5.7 Repeated ILA Test Mode
        8. 6.4.5.8 Modified RPAT Test Mode
      6. 6.4.6 Calibration Modes and Trimming
        1. 6.4.6.1 Foreground Calibration Mode
        2. 6.4.6.2 Background Calibration Mode
        3. 6.4.6.3 Low-Power Background Calibration (LPBG) Mode
      7. 6.4.7 Offset Calibration
      8. 6.4.8 Trimming
      9. 6.4.9 Offset Filtering
    5. 6.5 Programming
      1. 6.5.1 Using the Serial Interface
        1. 6.5.1.1 SCS
        2. 6.5.1.2 SCLK
        3. 6.5.1.3 SDI
        4. 6.5.1.4 SDO
        5. 6.5.1.5 Streaming Mode
    6. 6.6 Register Maps
      1. 6.6.1 Register Descriptions
      2. 6.6.2 SYSREF Calibration Registers (0x2B0 to 0x2BF)
      3. 6.6.3 Alarm Registers (0x2C0 to 0x2C2)
  8. 7 Application Information Disclaimer
    1. 7.1 Application Information
      1. 7.1.1 Analog Inputs
      2. 7.1.2 Analog Input Bandwidth
      3. 7.1.3 Clocking
      4. 7.1.4 Radiation Environment Recommendations
        1. 7.1.4.1 Single Event Latch-Up (SEL)
        2. 7.1.4.2 Single Event Functional Interrupt (SEFI)
        3. 7.1.4.3 Single Event Upset (SEU)
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 RF Input Signal Path
        2. 7.2.2.2 Calculating Values of AC-Coupling Capacitors
      3. 7.2.3 Application Curves
    3. 7.3 Initialization Set Up
    4.     Power Supply Recommendations
      1. 7.4.1 Power Sequencing
    5. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Third-Party Products Disclaimer
    4. 8.4 Receiving Notification of Documentation Updates
    5. 8.5 Support Resources
    6. 8.6 Trademarks
    7. 8.7 Electrostatic Discharge Caution
    8. 8.8 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

6.6.3 Alarm Registers (0x2C0 to 0x2C2)

Table 6-144 Alarm Registers
ADDRESSRESETACRONYMREGISTER NAMESECTION
0x2C0UndefinedALARMAlarm Interrupt Status RegisterSection 6.6.3.1
0x2C10x1FALM_STATUSAlarm Status RegisterSection 6.6.3.2
0x2C20x1FALM_MASKAlarm Mask RegisterSection 6.6.3.3

6.6.3.1 Alarm Interrupt Register (address = 0x2C0) [reset = Undefined]

Figure 6-115 Alarm Interrupt Register (ALARM)
76543210
RESERVEDALARM
RR
Table 6-145 ALARM Field Descriptions
BitFieldTypeResetDescription
7-1RESERVEDRUndefinedRESERVED
0ALARMRUndefinedThis bit returns a 1 whenever any alarm occurs that is unmasked in the ALM_STATUS register. Use ALM_MASK to mask (disable) individual alarms. CAL_STATUS_SEL can be used to drive the ALARM bit onto the CALSTAT output pin to provide a hardware alarm interrupt signal.

6.6.3.2 Alarm Status Register (address = 0x2C1) [reset = 0x1F]

Figure 6-116 Alarm Status Register (ALM_STATUS)
76543210
RESERVEDPLL_ALMLINK_ALMREALIGNED_ALMNCO_ALMCLK_ALM
R/W-000R/W-1R/W-1R/W-1R/W-1R/W-1
Table 6-146 ALM_STATUS Field Descriptions
BitFieldTypeResetDescription
7-5RESERVEDR/W000RESERVED
4PLL_ALMR/W1PLL lock lost alarm. This bit is set whenever the PLL is not locked. Write a 1 to clear this bit.
3LINK_ALMR/W1Link alarm. This bit is set whenever the JESD204B link is enabled, but is not in the DATA_ENC state. Write a 1 to clear this bit.
2REALIGNED_ALMR/W1Realigned alarm. This bit is set whenever SYSREF causes the internal clocks (including the LMFC) to be realigned. Write a 1 to clear this bit.
1NCO_ALMR/W1NCO alarm. This bit can be used to detect an upset to the NCO phase. This bit is set when any of the following occur:
  • The NCOs are disabled (JESD_EN = 0)
  • The NCOs are synchronized (intentionally or unintentionally)
  • Any phase accumulators in channel A do not match channel B


Write a 1 to clear this bit.
0CLK_ALMR/W1Clock alarm. This bit can be used to detect an upset to the digital block and JESD204B clocks. This bit is set whenever the internal clock dividers for the A and B channels do not match. Write a 1 to clear this bit.

6.6.3.3 Alarm Mask Register (address = 0x2C2) [reset = 0x1F]

Figure 6-117 Alarm Mask Register (ALM_MASK)
76543210
RESERVEDMASK_PLL_ALMMASK_LINK_ALMMASK_REALIGNED_ALMMASK_NCO_ALMMASK_CLK_ALM
R/W-000R/W-1R/W-1R/W-1R/W-1R/W-1
Table 6-147 ALM_MASK Field Descriptions
BitFieldTypeResetDescription
7-5RESERVEDR/W000RESERVED
4MASK_PLL_ALMR/W1When set, PLL_ALM is masked and does not impact the ALARM register bit.
3MASK_LINK_ALMR/W1When set, LINK_ALM is masked and does not impact the ALARM register bit.
2MASK_REALIGNED_ALMR/W1When set, REALIGNED_ALM is masked and does not impact the ALARM register bit.
1MASK_NCO_ALMR/W1When set, NCO_ALM is masked and does not impact the ALARM register bit.
0MASK_CLK_ALMR/W1When set, CLK_ALM is masked and does not impact the ALARM register bit.