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ZL30143 Datasheet

SyncE SONET/SDH G.8262/Stratum3 System Synchronizer/SETS

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ZL30143
SyncE SONET/SDH
G.8262/Stratum3 System Synchronizer/SETS
Short Form Data Sheet
Features
• Supports the requirements of ITU-T G.8262 for
synchronous Ethernet Equipment slave Clocks
(EEC option 1 and 2)
• Supports the requirements of Telcordia GR-1244
Stratum 3 and GR-253, ITU-T G.813, and G.781
SETS
• Supports ITU-T G.823, G.824 and G.8261 for 2048
kbit/s and 1544 kbit/s interfaces
• Meets the SONET/SDH jitter generation
requirements up to OC-48/STM-16
• Synchronizes to telecom reference clocks (2 kHz,
N*8 kHz up to 77.76 MHz, 155.52 MHz) or to
Ethernet reference clocks (25 MHz, 50 MHz,
62.5 MHz, 125 MHz)
• Supports composite clock inputs (64 kHz, 64 kHz +
8 kHz, 64kHz + 8 kHz + 400 Hz)
• Generates standard SONET/SDH clock rates (e.g.,
19.44 MHz, 38.88 MHz, 77.76 MHz, 155.52 MHz,
622.08 MHz) or Ethernet clock rates (e.g., 25 MHz,
50 MHz, 125 MHz, 156.25 MHz, 312.5 MHz) for
synchronizing Gigabit Ethernet PHYs
• Programmable output synthesizers (P0, P1)
generate telecom clock frequencies from any
multiple of 8 kHz up to 100 MHz
• Generates several styles of telecom frame pulses
with selectable pulse width, polarity and frequency
• Provides two DPLLs which are independently
configurable through a serial interface
March 2013
Ordering Information
ZL30143GGG 100 Pin CABGA Trays
ZL30143GGG2 100 Pin CABGA* Trays
*Pb Free Tin/Silver/Copper
-40oC to +85oC
• Internal state machine automatically controls
mode of operation (free-run, locked, holdover)
• Flexible input reference monitoring automatically
disqualifies references based on frequency and
phase irregularities
• Provides automatic reference switching and
holdover during loss of reference input
• Supports master/slave configuration and dynamic
input to output delay compensation for
AdvancedTCATM
• Configurable input to output delay and output to
output phase alignment
Applications
• ITU-T G.8262 System Timing Cards which support
1 GbE and 10 GbE interfaces
• Telcordia GR-253 Carrier Grade SONET/SDH
Stratum 3 System Timing Cards
• System Timing Cards which supports ITU-T G.781
SETS (SDH Equipment Timing Source)
Figure 1 - Functional Block Diagram
1
Copyright 2013, Microsemi Corporation. All Rights Reserved.


  Microsemi Electronic Components Datasheet  

ZL30143 Datasheet

SyncE SONET/SDH G.8262/Stratum3 System Synchronizer/SETS

No Preview Available !

ZL30143
Short Form Data Sheet
1.0 Overview
The ZL30143 System Synchronizer and SETS device is a highly integrated device that provides all of the
functionality that is required for a central timing card in carrier grade network equipment. The basic functions of a
central timing card include:
• Input reference monitoring for both frequency accuracy and phase irregularities
• Automatic input reference selection
• Support of both external timing and line timing modes
• Hitless reference switching
• Wander and jitter filtering
• Master/slave crossover for minimizing phase alignment between redundant timing cards
• Independent derived output timing path for support of the SETS functionality
In a typical application, the main timing path uses DPLL1 to synchronize to either an external BITS source or to a
recovered line timed source. DPLL1 monitors all references and automatically selects the best available reference
based on configurable priority and revertive properties. DPLL1 provides the wander filtering function and the P0
synthesizer generates a jitter filtered clock and frame pulse for the system timing bus which supplies all line cards
with a common timing reference. The APLL is used to generate a reference clock for an Ethernet PHY which can be
used to synchronize remote equipment. A derived output timing path using DPLL2 is available to support the SETS
function. In this case DPLL2 uses a filter above 10 Hz to prevent it from filtering wander.
Figure 2 - Typical Application of the ZL30143
2
Microsemi Corporation


Part Number ZL30143
Description SyncE SONET/SDH G.8262/Stratum3 System Synchronizer/SETS
Maker Microsemi
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ZL30143 Datasheet PDF






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