SM3 Datasheet, PDF (21/36 Pages) Connor-Winfield Corporation – ULTRA MINIATURE STRATUM 3 MODULE

Performance Specifications continued
Wander Transfer – Wander transfer is the degree to which input wander is attenuated (or amplified) from input to output of a clock.
The GR-1244 requirements for wander transfer limits are shown below.
Integration time, τ (seconds)
τ < 0.05
0.05 ≤ τ < 0.1
0.1 ≤ τ < 1.44
1.44 ≤τ < 10
10 ≤τ < 300
300 ≤τ ≤1000
1000 < τ
10000
1000
Stratum 3 TDEV (nanoseconds)
N/A
1020 x τ
102
102
32.2 x τ ^0.5
32.2 x τ ^0.5
N/A
GR-1244-CORE, Fig5-6, Wander Transfer
STRATUM 3 Wander Transfer TDEV
100
10
1
0.1
0.01
0.1
1
10
Integration Time (sec)
100
1000
The SM3, when configured for the appropriate stratum 3 bandwidth frequency, meets the stratum 3 requirements,
Jitter Generation – Jitter generation is the process whereby jitter appears at the output of a clock in the absence of input jitter.
The device jitter generation performance is as shown below:
Jitter
19.44 MHz
77.76 MHz
Broadband
(10 Hz - 2 MHz)
8 ps Typical (rms)
8 ps Typical (rms)
SONET Band
(12 kHz -2MHz)
5 ps Typical (rms)
(12 kHz -20MHz)
1.5 ps Typical (rms)
Jitter Transfer – Jitter transfer is the degree to which input jitter is attenuated (or amplified) from input to output of a clock. It is
a function of the selected bandwidth.
Jitter Attenuation vs. Input Frequency
0.0
-10.0
-20.0
-30.0
0.001
0.01
0.1
1
INPUT Jitter frequency (Hz)
Data Sheet #: TM052 Page 21 of 36 Rev: 03 Date: 11/07/08
© Copyright 2008 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice