SLVAF52B July   2021  – November 2021 AFE8092 , TPS62913

 

  1.   Trademarks
  2. 1Introduction
  3. 2System Description
    1. 2.1 AFE80xx Noise and Ripple Requirements
    2. 2.2 AFE80xx Supply Settling and EVM for TDD Operations
    3. 2.3 Block Diagram
      1. 2.3.1 Proposed Power Architecture
      2. 2.3.2 Power Sequencing
    4. 2.4 Power Supply Design Consideration
  4. 3Tests and Results
    1. 3.1 Test Methodology
      1. 3.1.1 Phase Noise (Transmit) (dBc/Hz)
      2. 3.1.2 EVM for Frequency Division Multiplexing (FDD) Mode(%)
      3. 3.1.3 EVM for TDD Mode(%)
      4. 3.1.4 Receive (RX) Spectrum (Power Supply Spurious)
      5. 3.1.5 Power Efficiency
    2. 3.2 Test Conditions
    3. 3.3 Test Results
      1. 3.3.1 Phase Noise
      2. 3.3.2 EVM for FDD Mode
      3. 3.3.3 EVM for TDD Mode
      4. 3.3.4 RX Spectrum
      5. 3.3.5 Power Efficiency
  5. 4Conclusion
  6. 5References
  7. 6Revision History

3.1.2 EVM for Frequency Division Multiplexing (FDD) Mode(%)

EVM is measured to plot the deviation of constellation points for 5G NR spectrum configured for FDD mode. Noise, spurious signals, distortion and phase noise degrades the EVM. In FDD mode AFE8092 all 8 transmit and 8 receive pairs are enabled in continuous mode.
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