SNAA360 June   2022 ADC32RF54 , ADC32RF55 , AFE7950 , LMX1204

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Cascaded LMX1204 Design
  4. 2Results
    1. 2.1 Single Device Performance
    2. 2.2 Cascaded Device Performance
    3. 2.3 Detailed Results
      1. 2.3.1 1 GHz Performance
      2. 2.3.2 3 GHz Performance
      3. 2.3.3 6 GHz Performance
      4. 2.3.4 10 GHz Performance
      5. 2.3.5 12.8 GHz Performance
    4. 2.4 Cascaded LMX1204 Performance With ADC32RF54
    5. 2.5 Cascaded LMX1204 Performance With AFE7950
  5. 3Summary
  6. 4References

2.1 Single Device Performance

Figure 2-1 shows the phase noise performance of the LMX1204 evaluation board (LMX1204EVM) driven by the SMA100B signal generator. Device performance will be captured at the frequencies: 1 GHz, 3 GHz, 6 GHz, 10 GHz, and 12.8 GHz.

GUID-20220112-SS0I-ZBV4-MHTC-H6D8MGGF7ZXW-low.png Figure 2-1 LMX1204EVM Phase Noise Measurements

The LMX1204EVM 2.5-V power supply comes from the R&S FSWP26 phase noise analyzer to avoid DC switching supply spurs coupling to the generated outputs. The LMX1204EVM operates in bypass at its highest output power.