Agilent Technologies HP 8642A/B Spécifications Page 129

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 453
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 128
CD
£5
+ 15
+
0)
cc
D
c
CO
-15
-120 -130
-150 -160 -170
L Port Signal Level
i
3
A»umed to be Approximate Phase Noise Floor (dBc/Hz)
Appropriate for the '
v
'
Phase Detector f > "] Q
^j-|
^
Figure 2-17. Relationship between Phase Detector Constant and R Port Level
Considerations When Using the Current Detector
Constant
User entry is potentially the least accurate method for determine the
Detector Constant.
This calibration method does not verify the accuracy of the Phase Detector
Constant. It relies strictly on the user to ensure the validity of the Detector
Constant being used. (Keep in mind that the accuracy of the Detector
Constant relates directly to the accuracy of the measurement. A Detector
Constant accurate to within ±1 dB will guarantee a measurement accuracy
of ±2 dB.)
An accuracy degradation may be acceptable when only the relative shape
of a device's noise characteristics is important rather than the absolute
noise level. In this case, only a crude approximation of the Phase Detector
Constant is necessary.
2-60 Calibr Process: $N w/o PLL
Vue de la page 128
1 2 ... 124 125 126 127 128 129 130 131 132 133 134 ... 452 453

Commentaires sur ces manuels

Pas de commentaire