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Zarlink Semiconductor Inc - T1/E1 Stratum 3 System Synchronizer

Numéro de référence ZL30101
Description T1/E1 Stratum 3 System Synchronizer
Fabricant Zarlink Semiconductor Inc 
Logo Zarlink Semiconductor Inc 





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ZL30101 fiche technique
ZL30101
T1/E1 Stratum 3 System Synchronizer
Data Sheet
Features
October 2004
• Supports Telcordia GR-1244-CORE Stratum 3
• Supports G.823 and G.824 for 2048 kbit/s and
1544 kbit/s interfaces
• Supports ANSI T1.403 and ETSI ETS 300 011 for
ISDN primary rate interfaces
• Simple hardware control interface
• Accepts two input references and synchronizes to
any combination of 8 kHz, 1.544 MHz, 2.048 MHz,
8.192 MHz or 16.384 MHz inputs
• Provides a range of clock outputs: 1.544 MHz,
2.048 MHz, 16.384 MHz and either 4.096 MHz &
8.192 MHz or 32.768 MHz & 65.536 MHz
• Provides 5 styles of 8 kHz framing pulses
• Holdover frequency accuracy of 1 x 10-8
• Lock, Holdover and Out of Range indication
• Selectable loop filter bandwidth of 1.8 Hz or 922 Hz
• Less than 0.6 nspp jitter on all output clocks
• External master clock source: clock oscillator or
crystal
Ordering Information
ZL30101QDC
64 pin TQFP
-40°C to +85°C
Applications
• Synchronization and timing control for multi-trunk
DS1/E1 systems such as DSLAMs, gateways and
PBXs
• Clock and frame pulse source for ST-BUS, GCI
and other time division multiplex (TDM) buses
REF0
REF1
OSCi OSCo TIE_CLR
BW_SEL LOCK OUT_SEL
Master Clock
MUX
TIE
Corrector
Circuit
Virtual
Reference
DPLL
E1
Synthesizer
REF_FAIL0
REF_FAIL1
REF_SEL
RST
Reference
Monitor
TIE
Corrector
Enable
State Machine
Mode
Control
Feedback
Frequency
Select
MUX
DS1
Synthesizer
IEEE
1149.1a
C2o
C4/C65o
C8/C32o
C16o
F4/F65o
F8/F32o
F16o
C1.5o
TRST
MODE_SEL1:0 HMS HOLDOVER
TCK TDI TMS TDO
Figure 1 - Functional Block Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2004, Zarlink Semiconductor Inc. All Rights Reserved.

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