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SPUR TABLES
THE SPUR NUMBERS below represent the typical numbers one would see for downconversion.  The numbers shown are for a -10 dBm input. The spur suppression is decreased for lower RF power levels by (n-1).  For example if the 2RF x 2LO spur is typically 40 dBc for a -10 dBm input, then for a -20 dBm input the level is (2-1) x 10 dB lower, or 50 dBc.


Double-Balanced:  M1/M3/M4/M8/M9
Spurious Suppression (Typical) - dBc
  5R 100 100 90 110 95
  4R 80 95 95 100 90
RF Input @ -10dBm 3R 50 70 55 70 60
  2R 55 50 50 50 50
  1R 0 20 10 25 20
             
    1L 2L 3L 4L 5L


Triple-Balanced: M2's - Sine-Wave LO-Drive
Spurious Suppression (Typical) - dBc
  5R 100 110 130 120 110
  4R 95 100 110 90 100
RF Input @ -10 dBm 3R 65 80 80 80 65
  2R 55 55 60 60 65
  1R 0 30 15 30 20
             
    1L 2L 3L 4L 5L


Triple-Balanced:  M2's - Square Wave LO-Drive
Spurious Suppression (Typical) - dBc
  5R 100 110 130 120 110
  4R 95 100 110 90 100
RF Input @ -10 dBm 3R 80 80 90 90 80
  2R 55 67 60 70 75
  1R 0 20 10 20 18
             
    1L 2L 3L 4L 5L
 
 
 
 

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