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1588 Datasheet(PDF) 3 Page - Vectron International, Inc

Part No. 1588
Description  Enhanced Clock Stability for the 1588 enabled network.
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Maker  VECTRON [Vectron International, Inc]
Homepage  http://www.vectron.com
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1588 Datasheet(HTML) 3 Page - Vectron International, Inc

   
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Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
FACT SHEET
Disclaimer
Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice. No liability is assumed as a result of their use or application.
No rights under any patent accompany the sale of any such product(s) or information.
For Additional Information, Please Contact
Europe:
Vectron International
Landstrasse, D-74924
Neckarbischofsheim, Germany
Tel: +49 (0) 7268.8010
Fax: +49 (0) 7268.801281
USA:
Vectron International
267 Lowell Road
Hudson, NH 03051
Tel: 1.888.328.7661
Fax: 1.888.329.8328
Asia:
Vectron International
1589 Century Avenue, the 19th Floor
Chamtime International Financial Center
Shanghai, China
Tel: +86 21 6081.2888
Fax: +86 21 6163.3598
Vectron Oscillators optimized for 1588
Parameter
OX-402
OX-222
OX-202
Frequencies
10MHz, 12.8MHz, 20MHz
10MHz, 12.8MHz, 20MHz
10MHz, 12.8MHz, 20MHz
Package
13 x 20mm Through-hole
22 x 25mm SMT
25 x 25mm Through-hole
Holdover Stability
<10ppb
<10ppb
<10ppb
Drift
<1ppb
<0.8 ppb
<0.75ppb
Wander Generation MTIE1
1s
0.2 ns
0.2 ns
0.2ns
10s
2.0 ns
2.0 ns
1.6ns
100s
10 ns
10 ns
12ns
1000s
40 ns
40 ns
34ns
Wander Generation TDEV1
1s
0.015 ns
0.015 ns
0.001ns
10s
0.13 ns
0.13 ns
0.05ns
100s
1.5 ns
1.5 ns
0.8ns
1000s
5.0 ns
5.0 ns
3.5ns
Vectron Oscillators for 1588
Vectron matches the stability characteristics of its oscillators with the requirements of 1588 client clocks –
this is done by design, but also through a system level verification of the oscillators’ suitability in the target
application. Choosing oscillators for 1588 applications is in many ways similar to selecting devices to sup-
port SONET/SDH ‘stratum’ level applications. However the role of PDV and any corresponding packet filtering
used in a Packet Equipment Clock (PEC) needs to be considered also, since the system loop filter bandwidth
is not necessarily pre-defined in the same way as SONET/SDH.
Notes - 1. Wander Generation per GR1244, system performance when locked through a 1mHz loop bandwidth. See typical data in
datasheets.
Definitions
PTP - Precision Timing Protocol - Generic name for the protocol described in IEEE standard 1588-2008
PDV - Packet Delay Variation - A key source of time error in packet based timing mechanisms
PEC - Packet Equipment Clock - Described in G.8263 and a model of how a 1588 clock derives timing.
UTC - Coordinated Universal Time, Transmitted by GPS
Holdover - Holdover stability represents the maximum change in the clock frequency over time after the loss of all frequency
references, and takes temperature as well as drift into account.
Drift - Drift is a measure of how a clock’s frequency accuracy (or offset) changes with time. Drift does not take temperature effects
into account.
MTIE - The maximum time interval error, MTIE, is a measure of the maximum time error of a clock over a particular time interval.
TDEV - TDEV, the root of time Allan Variance TVAR, is a measure of time stability


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