TABLE 2

Iris TCXO and CSAC Allan Deviation, Aging, and Noise Specifications

Allan Deviation σy(T)aσWFσRWF
Iris TCXO (Q-Tech Q804)Spec value:

  • σy(1) < 1 × 10−19

8.1 ×10−9/day – 2.4 ×10−8/dayEmbedded ImageEmbedded Image
Measured values:

  • σy(1) = 4 × 10−11

  • σy(100) = 5 × 10−11

  • σy(1000) = 2 × 10−10

  • σy(10000) = 2 × 10−9

(Variation as seen with measured OAD for different tests)(Derived from measured OAD)(Derived from measured OAD)
CSAC SA-45SSpec values:

  • σy(1) = 3 × 10−10

  • σy(10) = 1 × 10−10

  • σy (100) = 3 × 10−11

  • σy(1000) = 1 × 10−11

Embedded Image
(Derived from specified OAD)		Embedded Image
(Derived from specified OAD)		Embedded Image
(Derived from specified OAD)
Measured values:

  • Unknown