ZL30342
SyncE/SONET/SDH G.8262/Stratum3
& IEEE 1588 Packet G.8261 Synchronizer
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.812 and G.813
Supports ITU-T G.823, G.824 and G.8261 for
2048 kbit/s and 1544 kbit/s interfaces
Frequency, Phase and Time Synchronization over
IP, MPLS and Ethernet Packet Networks
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Frequency accuracy performance for WCDMA-
FDD, GSM, LTE-FDD and femtocell
applications, with target performance less than
± 15 ppb.
Frequency performance for ITU-T G.823 and
G.824 synchronization interface, as well as
G.8261 PNT EEC, PNT PEC and CES interface
specifications.
Phase Synchronization performance for
WCDMA-TDD, Mobile WiMAX, TD-SCDMA and
CDMA2000 applications with target
performance less than ± 1
s
phase alignment.
Time Synchronization for UTC-traceability and
GPS replacement.
•
June 2012
Ordering Information
ZL30342GGG
64 Pin CABGA
ZL30342GGG2
64 Pin CABGA*
*Pb Free Tin/Silver/Copper
-40
o
C to +85
o
C
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)
Programmable output synthesizer generates
telecom clock frequencies from any multiple of
8 kHz up to 100 MHz
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
DPLL that is configurable through a serial interface
Client reference switching between multiple
Servers
Client holdover when Server packet connectivity is
lost
Trays
Trays
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Meets the SONET/SDH jitter generation
requirements up to OC-48/STM-16
osci
osco
ref0
ref1
ref2
Software PLL Control
(over I2C/SPI)
/N1
/N2
ref
SONET /
Ethernet
APLL
diff
apll_clk
sync0
sync1
sync2
Software PLL Control
(over I2C/SPI)
DPLL
sync
Programmable
Synthesizer
N*8kHz
p_clk
p_fp
mode
lock
hold
I
2
C/SPI
JTAG
Figure 1 - Functional Block Diagram
1
Microsemi Corporation
Copyright 2012, Microsemi Corporation. All Rights Reserved.
ZL30342
1.0
1.1
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Short-Form Data Sheet
Features
Time Synchronization Algorithm
External algorithm controls software digital PLL to adjust frequency & phase alignment
Frequency, Phase and Time Synchronization over IP, MPLS and Ethernet Packet Networks
Frequency accuracy performance for WCDMA-FDD, GSM, LTE-FDD and femtocell applications, with target
performance less than ± 15 ppb.
Frequency performance for ITU-T G.823 and G.824 synchronization interface, as well as G.8261 PNT EEC,
PNT PEC and CES interface specifications.
Phase Synchronization performance for WCDMA-TDD, Mobile WiMAX, TD-SCDMA and CDMA2000
applications with target performance less than ± 1
s
phase alignment.
Time Synchronization for UTC-traceability and GPS replacement.
Client reference switching between multiple Servers
Client holdover when Server packet connectivity is lost
1.2
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Electrical Clock Engine
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 ITU-T G.812
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, 64 kHz + 8 kHz + 400 Hz)
Provides DPLL that is configurable through a serial interface
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
Supports master/slave configuration and dynamic input to output delay compensation for AdvancedTCA
TM
Provides automatic reference switching and holdover during loss of reference input
1.3
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Electrical Clock Generation
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
Configurable input to output delay and output to output phase alignment
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2
Microsemi Corporation
ZL30342
1.4
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Short-Form Data Sheet
API Software
Interfaces to 1588-capable PHY and switches with integrated timestamping
Abstration layer for independence from OS and CPU, from embedded SoC to home-grown
Fits into centralized, highly integrated pizza box architectures as well as distributed architectures with
multiple line cards and timing cards
2.0
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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)
Integrated basestation reference clock for air interface for GSM, WCDMA, LTE and WiMAX macro, micro or
femtocells
Mobile Backhaul NID, edge router or access aggregation node
EPON/GE-PON & GPON OLT
EPON/GE-PON & GPON ONU/OLT
DSLAM and RT-DSLAM
3
Microsemi Corporation
ZL30342
Short-Form Data Sheet
Microsemi Corporation (NASDAQ: MSCC) offers a comprehensive portfolio of semiconductor
solutions for: aerospace, defense and security; enterprise and communications; and industrial
and alternative energy markets. Products include high-performance, high-reliability analog and
RF devices, mixed signal and RF integrated circuits, customizable SoCs, FPGAs, and
complete subsystems. Microsemi is headquartered in Aliso Viejo, Calif. Learn more at
www.microsemi.com.
Microsemi Corporate Headquarters
One Enterprise, Aliso Viejo CA 92656 USA
Within the USA: +1 (949) 380-6100
Sales: +1 (949) 380-6136
Fax: +1 (949) 215-4996
© 2012 Microsemi Corporation. All rights reserved. Microsemi and the Microsemi logo are trademarks of
Microsemi Corporation. All other trademarks and service marks are the property of their respective owners.
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