FXO-HC73 Series

Page 4 of 14

© 2008 FOX ELECTRONICS | ISO9001:2000 Certified

Jitter is frequency dependent. Below are typical values at select frequencies.

Per MJSQ spec (Methodologies for Jitter and Signal Quality specifications)

Per MJSQ spec (Methodologies for Jitter and Signal Quality specifications)

Phase Jitter & Time Interval Error (TIE)

Frequency

Phase Jitter

(12kHz to 20MHz)

T I E

(Sigma of Jitter Distribution)

Units

62.5 MHz

0.93

2.8

pS RMS

106.25 MHz

0.86

3.2

pS RMS

125 MHz

0.75

2.7

pS RMS

156.25 MHz

0.77

3.3

pS RMS

Random & Deterministic Jitter Composition

Frequency

Random (Rj)

(pS RMS)

Deterministic (Dj)

(pS P-P)

Total Jitter (Tj)

(14 x Rj) + Dj

62.5 MHz

1.28

6.8

25.1 pS

106.25 MHz

1.28

8.4

26.6 pS

125 MHz

1.20

8.0

25.2 pS

156.25 MHz

1.27

8.6

26.6 pS

Phase Noise

10

-160dBc

-140dBc

-150dBc

-130dBc

-120dBc

-110dBc

-90dBc

-80dBc

-100dBc

-50dBc

-70dBc

-60dBc

-20dBc

-30dBc

-40dBc

0 dBc

-10dBc

Data Collected using HP 3048A

1M

100k

10k

100

1k

Offset Frequency

(10Hz to 40MHz)

40M

10M

106.25 MHz

62.5 MHz

156.25MHz

(dBc / Hz) vs. offset frequency

Phase Noise Graph

Three Frequencies from Jitter Tables

106.25 MHz

156.25MHz

62.5 MHz