SLVSEO1A August   2021  – May 2022 ADC08DJ5200RF

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 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 Device Comparison
      2. 7.3.2 Analog Inputs
        1. 7.3.2.1 Analog Input Protection
        2. 7.3.2.2 Full-Scale Voltage (VFS) Adjustment
        3. 7.3.2.3 Analog Input Offset Adjust
      3. 7.3.3 ADC Core
        1. 7.3.3.1 ADC Theory of Operation
        2. 7.3.3.2 ADC Core Calibration
        3. 7.3.3.3 Analog Reference Voltage
        4. 7.3.3.4 ADC Overrange Detection
        5. 7.3.3.5 Code Error Rate (CER)
      4. 7.3.4 Temperature Monitoring Diode
      5. 7.3.5 Timestamp
      6. 7.3.6 Clocking
        1. 7.3.6.1 Noiseless Aperture Delay Adjustment (tAD Adjust)
        2. 7.3.6.2 Aperture Delay Ramp Control (TAD_RAMP)
        3. 7.3.6.3 SYSREF Capture for Multi-Device Synchronization and Deterministic Latency
          1. 7.3.6.3.1 SYSREF Position Detector and Sampling Position Selection (SYSREF Windowing)
          2. 7.3.6.3.2 Automatic SYSREF Calibration
      7. 7.3.7 Programmable FIR Filter (PFIR)
        1. 7.3.7.1 Dual Channel Equalization
        2. 7.3.7.2 Single Channel Equalization
        3. 7.3.7.3 Time Varying Filter
      8. 7.3.8 JESD204C Interface
        1. 7.3.8.1 Transport Layer
        2. 7.3.8.2 Scrambler
        3. 7.3.8.3 Link Layer
        4. 7.3.8.4 8B/10B Link Layer
          1. 7.3.8.4.1 Data Encoding (8B/10B)
          2. 7.3.8.4.2 Multiframes and the Local Multiframe Clock (LMFC)
          3. 7.3.8.4.3 Code Group Synchronization (CGS)
          4. 7.3.8.4.4 Initial Lane Alignment Sequence (ILAS)
          5. 7.3.8.4.5 Frame and Multiframe Monitoring
        5. 7.3.8.5 64B/66B Link Layer
          1. 7.3.8.5.1 64B/66B Encoding
          2. 7.3.8.5.2 Multiblocks, Extended Multiblocks and the Local Extended Multiblock Clock (LEMC)
          3. 7.3.8.5.3 Block, Multiblock and Extended Multiblock Alignment using Sync Header
            1. 7.3.8.5.3.1 Cyclic Redundancy Check (CRC) Mode
            2. 7.3.8.5.3.2 Forward Error Correction (FEC) Mode
          4. 7.3.8.5.4 Initial Lane Alignment
          5. 7.3.8.5.5 Block, Multiblock and Extended Multiblock Alignment Monitoring
        6. 7.3.8.6 Physical Layer
          1. 7.3.8.6.1 SerDes Pre-Emphasis
        7. 7.3.8.7 JESD204C Enable
        8. 7.3.8.8 Multi-Device Synchronization and Deterministic Latency
        9. 7.3.8.9 Operation in Subclass 0 Systems
      9. 7.3.9 Alarm Monitoring
        1. 7.3.9.1 Clock Upset Detection
        2. 7.3.9.2 FIFO Upset Detection
    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 Dual-Input Single-Channel Mode (DUAL DES Mode)
      4. 7.4.4 JESD204C Modes
        1. 7.4.4.1 JESD204C Operating Modes Table
        2. 7.4.4.2 JESD204C Modes continued
        3. 7.4.4.3 JESD204C Transport Layer Data Formats
        4. 7.4.4.4 64B/66B Sync Header Stream Configuration
      5. 7.4.5 Power-Down Modes
      6. 7.4.6 Test Modes
        1. 7.4.6.1 Serializer Test-Mode Details
        2. 7.4.6.2 PRBS Test Modes
        3. 7.4.6.3 Clock Pattern Mode
        4. 7.4.6.4 Ramp Test Mode
        5. 7.4.6.5 Short and Long Transport Test Mode
          1. 7.4.6.5.1 Short Transport Test Pattern
        6. 7.4.6.6 D21.5 Test Mode
        7. 7.4.6.7 K28.5 Test Mode
        8. 7.4.6.8 Repeated ILA Test Mode
        9. 7.4.6.9 Modified RPAT Test Mode
      7. 7.4.7 Calibration Modes and Trimming
        1. 7.4.7.1 Foreground Calibration Mode
        2. 7.4.7.2 Background Calibration Mode
        3. 7.4.7.3 Low-Power Background Calibration (LPBG) Mode
      8. 7.4.8 Offset Calibration
      9. 7.4.9 Trimming
    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 SPI Register Map
  8. 8 Application Information Disclaimer
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Reconfigurable Dual-Channel 5-GSPS or Single-Channel 10-Gsps Oscilloscope
        1. 8.2.1.1 Design Requirements
          1. 8.2.1.1.1 Input Signal Path
          2. 8.2.1.1.2 Clocking
          3. 8.2.1.1.3 ADC08DJ5200RF
    3. 8.3 Initialization Set Up
  9. 9 Power Supply Recommendations
    1. 9.1 Power Sequencing
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 123
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

7.3.7.3 Time Varying Filter

When the ADC is operating in dual-input single channel mode (based on the JMODE setting and SINGLE_INPUT setting) then the PFIR filter can be set in time varying filter mode. This mode enables a time varying filter with two coefficient sets that are alternated between on a per sample basis. Each coefficient set consists of 9 coefficients that can be independently set. The center tap of the filter has a resolution of 18 bits and the LSB has a weight of 2-16. The non-center taps have a resolution of 12-bits with programmable LSB weight of 2-10, 2-11, 2-12, 2-13, 2-14, 2-15 or 2-16. All non-center taps have the same LSB weight. The block diagram for time varying filter mode is shown in Figure 7-6 and an alternate block diagram is given in Figure 7-7 which shows the equivalent filter in an I/Q correction-type topology.

GUID-20210316-CA0I-3QX9-FHTG-XBXVB5KHBHJQ-low.pngFigure 7-6 Time Varying Filter PFIR Block Diagram
GUID-20210316-CA0I-X9MM-4WL8-VHB1SJCFMCJ9-low.pngFigure 7-7 Alternate I/Q Correction-Type Filter Block Diagram