SLVSDR2B November   2018  – March 2021 ADC12DJ3200QML-SP

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: DC Specifications
    6. 6.6  Electrical Characteristics: Power Consumption
    7. 6.7  Electrical Characteristics: AC Specifications (Dual-Channel Mode)
    8. 6.8  Electrical Characteristics: AC Specifications (Single-Channel Mode)
    9. 6.9  Timing Requirements
    10. 6.10 Switching Characteristics
    11. 6.11 Timing Diagrams
    12. 6.12 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Analog Inputs
        1. 7.3.1.1 Analog Input Protection
        2. 7.3.1.2 Full-Scale Voltage (VFS) Adjustment
        3. 7.3.1.3 Analog Input Offset Adjust
      2. 7.3.2 ADC Core
        1. 7.3.2.1 ADC Theory of Operation
        2. 7.3.2.2 ADC Core Calibration
        3. 7.3.2.3 ADC Overrange Detection
        4. 7.3.2.4 Code Error Rate (CER)
      3. 7.3.3 Timestamp
      4. 7.3.4 Clocking
        1. 7.3.4.1 Noiseless Aperture Delay Adjustment (tAD Adjust)
        2. 7.3.4.2 Aperture Delay Ramp Control (TAD_RAMP)
        3. 7.3.4.3 SYSREF Capture for Multi-Device Synchronization and Deterministic Latency
          1. 7.3.4.3.1 SYSREF Position Detector and Sampling Position Selection (SYSREF Windowing)
          2. 7.3.4.3.2 Automatic SYSREF Calibration
      5. 7.3.5 Digital Down Converters (Dual-Channel Mode Only)
        1. 7.3.5.1 Numerically-Controlled Oscillator and Complex Mixer
          1. 7.3.5.1.1 NCO Fast Frequency Hopping (FFH)
          2. 7.3.5.1.2 NCO Selection
          3. 7.3.5.1.3 Basic NCO Frequency Setting Mode
          4. 7.3.5.1.4 Rational NCO Frequency Setting Mode
          5. 7.3.5.1.5 NCO Phase Offset Setting
          6. 7.3.5.1.6 NCO Phase Synchronization
        2. 7.3.5.2 Decimation Filters
        3. 7.3.5.3 Output Data Format
        4. 7.3.5.4 Decimation Settings
          1. 7.3.5.4.1 Decimation Factor
          2. 7.3.5.4.2 DDC Gain Boost
      6. 7.3.6 JESD204B Interface
        1. 7.3.6.1 Transport Layer
        2. 7.3.6.2 Scrambler
        3. 7.3.6.3 Link Layer
          1. 7.3.6.3.1 Code Group Synchronization (CGS)
          2. 7.3.6.3.2 Initial Lane Alignment Sequence (ILAS)
          3. 7.3.6.3.3 8b, 10b Encoding
          4. 7.3.6.3.4 Frame and Multiframe Monitoring
        4. 7.3.6.4 Physical Layer
          1. 7.3.6.4.1 SerDes Pre-Emphasis
        5. 7.3.6.5 JESD204B Enable
        6. 7.3.6.6 Multi-Device Synchronization and Deterministic Latency
        7. 7.3.6.7 Operation in Subclass 0 Systems
      7. 7.3.7 Alarm Monitoring
        1. 7.3.7.1 NCO Upset Detection
        2. 7.3.7.2 Clock Upset Detection
      8. 7.3.8 Temperature Monitoring Diode
      9. 7.3.9 Analog Reference Voltage
    4. 7.4 Device Functional Modes
      1. 7.4.1 Dual-Channel Mode
      2. 7.4.2 Single-Channel Mode (DES Mode)
      3. 7.4.3 JESD204B Modes
        1. 7.4.3.1 JESD204B Output Data Formats
        2. 7.4.3.2 Dual DDC and Redundant Data Mode
      4. 7.4.4 Power-Down Modes
      5. 7.4.5 Test Modes
        1. 7.4.5.1 Serializer Test-Mode Details
        2. 7.4.5.2 PRBS Test Modes
        3. 7.4.5.3 Ramp Test Mode
        4. 7.4.5.4 Short and Long Transport Test Mode
          1. 7.4.5.4.1 Short Transport Test Pattern
          2. 7.4.5.4.2 Long Transport Test Pattern
        5. 7.4.5.5 D21.5 Test Mode
        6. 7.4.5.6 K28.5 Test Mode
        7. 7.4.5.7 Repeated ILA Test Mode
        8. 7.4.5.8 Modified RPAT Test Mode
      6. 7.4.6 Calibration Modes and Trimming
        1. 7.4.6.1 Foreground Calibration Mode
        2. 7.4.6.2 Background Calibration Mode
        3. 7.4.6.3 Low-Power Background Calibration (LPBG) Mode
      7. 7.4.7 Offset Calibration
      8. 7.4.8 Trimming
      9. 7.4.9 Offset Filtering
    5. 7.5 Programming
      1. 7.5.1 Using the Serial Interface
        1. 7.5.1.1 SCS
        2. 7.5.1.2 SCLK
        3. 7.5.1.3 SDI
        4. 7.5.1.4 SDO
        5. 7.5.1.5 Streaming Mode
    6. 7.6 Register Maps
      1. 7.6.1 Register Descriptions
      2. 7.6.2 SYSREF Calibration Registers (0x2B0 to 0x2BF)
      3. 7.6.3 Alarm Registers (0x2C0 to 0x2C2)
  8. 8 Application Information Disclaimer
    1. 8.1 Application Information
      1. 8.1.1 Analog Inputs
      2. 8.1.2 Analog Input Bandwidth
      3. 8.1.3 Clocking
      4. 8.1.4 Radiation Environment Recommendations
        1. 8.1.4.1 Single Event Latch-Up (SEL)
        2. 8.1.4.2 Single Event Functional Interrupt (SEFI)
        3. 8.1.4.3 Single Event Upset (SEU)
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 RF Input Signal Path
        2. 8.2.2.2 Calculating Values of AC-Coupling Capacitors
      3. 8.2.3 Application Curves
    3. 8.3 Initialization Set Up
  9. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Development Support
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Community Resources
    5. 10.5 Trademarks

7.4.6.3 Low-Power Background Calibration (LPBG) Mode

Low-power background calibration (LPBG) mode reduces the power-overhead of enabling additional ADC cores. Off-line cores are powered down until ready to be calibrated and put on-line. Set LP_EN = 1 to enable the low-power background calibration feature. LP_SLEEP_DLY is used to adjust the amount of time an ADC sleeps before waking up for calibration (if LP_EN = 1 and LP_TRIG = 0). LP_WAKE_DLY sets how long the core is allowed to stabilize before calibration and being put on-line. LP_TRIG is used to select between an automatic switching process or one that is controlled by the user via CAL_SOFT_TRIG or CAL_TRIG. In this mode there is an increase in power consumption during the ADC core calibration. The power consumption roughly alternates between the power consumption in foreground calibration when the spare ADC core is sleeping to the power consumption in background calibration when the spare ADC is being calibrated. Design the power-supply network to handle the transient power requirements for this mode.