TIDUEZ6 December   2021 TPS62912 , TPS62913

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Overview
    1. 1.1 Key System Level Specifications
    2. 1.2 System Description
    3. 1.3 Block Diagram
    4. 1.4 Design Considerations
      1. 1.4.1 Frequency Band and Applications
        1. 1.4.1.1 RF Transceiver Synchronization Challenges
        2. 1.4.1.2 JESD204B-Compliant Multichannel Phase Synchronized Clocks Generation
      2. 1.4.2 Clock Jitter and System SNR
      3. 1.4.3 Power-Supply Selection
      4. 1.4.4 Highlighted Products
        1. 1.4.4.1 AFE7950
        2. 1.4.4.2 LMX2820
        3. 1.4.4.3 LMK04832
        4. 1.4.4.4 TPS62913 and TPS62912
        5. 1.4.4.5 LMK1C1104
  7. 2Hardware, Software, Testing Requirements, and Test Results
    1. 2.1 Required Hardware and Software
      1. 2.1.1 Hardware
        1. 2.1.1.1 Clocking Board Setup
        2. 2.1.1.2 FMC-to-FMC Adapter Board Setup
        3. 2.1.1.3 AFE7950EVM Setup
        4. 2.1.1.4 TSW14J56EVM Setup
        5. 2.1.1.5 Hardware Setup of Multiple Transceiver Synchronization
      2. 2.1.2 Software
        1. 2.1.2.1 TIDA-010230 Clocking Board GUI
        2. 2.1.2.2 AFE7950 EVM GUI
        3. 2.1.2.3 High-Speed Data Converter (HSDC) Pro
        4. 2.1.2.4 Programming Steps
        5. 2.1.2.5 Clocking Board Programming Sequence
        6. 2.1.2.6 Latte SW and HSDC Pro Setup
    2. 2.2 Test Setup
    3. 2.3 Test Results
      1. 2.3.1 LMX2820 Phase-Noise Performance
      2. 2.3.2 AFE7950 Transmitter Performance
      3. 2.3.3 AFE7950 Receiver Performance
      4. 2.3.4 Multiple AFE7950s TX and RX Alignment
      5. 2.3.5 Summary and Conclusion
  8. 3Design and Documentation Support
    1. 3.1 Design Files
      1. 3.1.1 Schematics
      2. 3.1.2 BOM
    2. 3.2 Tools and Software
    3. 3.3 Documentation Support
    4. 3.4 Support Resources
    5. 3.5 Trademarks
  9. 4About the Author
  10. 5Acknowledgement

2.3.1 LMX2820 Phase-Noise Performance

TIDA-010230 clocking board LMX2820 devices show almost the same results because both are identical on the board. Table 2-2 shows the measured phase noise performance of the LMX2820 on clocking board and comparing with LMX2820EVM results at various clock frequencies.

Table 2-2 LMX2820 Phase-Noise Comparison
Output
Frequency (GHz)		 Condition LMX2820 EVM Measured Phase Noise (dBc/Hz) Clocking Board Measured Phase Noise (dBc/Hz)
6 10-kHz offset –111.7 –111.9
100-kHz offset –117.5 –116.3
1-MHz offset –126.4 –125.9
10-MHz offset –149.9 –149.7
95-MHz offset –158.9 –159.5
11 10-kHz offset –106.9 –107.3
100-kHz offset –111.2 –110.2
1-MHz offset –122.1 –122.5
10-MHz offset –144.5 –144.9
95-MHz offset –157.2 –156.3
22 10-kHz offset –100.3 –101.5
100-kHz offset –104.7 –104.1
1-MHz offset –116.3 –116.3
10-MHz offset –138.7 –139.1
95-MHz offset –149.9 –149.3