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ZL30121 반도체 회로 부품 판매점

SONET/SDH Low Jitter System Synchronizer



Zarlink Semiconductor 로고
Zarlink Semiconductor
ZL30121 데이터시트, 핀배열, 회로
www.DataSheet4U.com
ZL30121
SONET/SDH
Low Jitter System Synchronizer
Data Sheet
A full Design Manual is available to qualified customers.
To register, please send an email to
Features
• Supports the requirements of Telcordia GR-253 and
GR-1244 for Stratum 3, 4E, 4 and SMC clocks, and
the requirements of ITU-T G.781 SETS, G.813
SEC, G.823, G.824 and G.825 clocks
• Internal APLL provides standard output clock
frequencies up to 622.08 MHz with jitter < 3 ps
RMS suitable for GR-253-CORE OC-12 and G.813
STM-16 interfaces
• Programmable output synthesizers generate clock
frequencies from any multiple of 8 kHz up to
77.76 MHz in addition to 2 kHz
• Provides two DPLLs which are independently
configurable through a serial software interface
• DPLL1 provides all the features necessary for
generating SONET/SDH compliant clocks including
automatic hitless reference switching, automatic
mode selection (locked, free-run, holdover),
selectable loop bandwidth and pull-in range
• DPLL2 provides a comprehensive set of features
necessary for generating derived output clocks and
other general purpose clocks
May 2006
Ordering Information
ZL30121GGG 100 Pin CABGA Trays
ZL30121GGG2 100 Pin CABGA* Trays
*Pb Free Tin/Silver/Copper
-40oC to +85oC
• Provides 8 reference inputs which support clock
frequencies with any multiples of 8 kHz up to
77.76 MHz in addition to 2 kHz
• Supports master/slave configuration for
AdvancedTCATM
• Configurable input to output delay and output to
output phase alignment
• Optional external feedback path provides dynamic
input to output delay compensation
• Provides 3 sync inputs for output frame pulse
alignment
• Generates several styles of output frame pulses
with selectable pulse width, polarity and frequency
• Flexible input reference monitoring automatically
disqualifies references based on frequency and
phase irregularities
• Supports IEEE 1149.1 JTAG Boundary Scan
osco
osci
ref0
ref1
ref2
ref3
ref4
ref5
ref6
ref7
sync0
sync1
sync2
int_b
trst_b tck tdi tms tdo dpll2_ref
dpll1_hs_en dpll1_lock dpll1_holdover diff0_en diff1_en
Master
Clock
IEEE 1449.1
JTAG
ref7:0
sync2:0
Reference ref_&_sync_status
Monitors
DPLL2
ref
ref
DPLL1
sync
fb_clk
fb_fp
P0
Synthesizer
P1
Synthesizer
SONET/SDH
APLL
Feedback
Synthesizer
p0_clk0
p0_clk1
p0_fp0
p0_fp1
p1_clk0
p1_clk1
diff0_p/n
diff1_p/n
sdh_clk0
sdh_clk1
sdh_fp0
sdh_fp1
fb_clk
SPI Interface
sck si so cs_b
Controller &
State Machine
rst_b slave_en dpll1_mod_sel1:0
ext_fb_fp
ext_fb_clk
sdh_filter filter_ref0 filter_ref1
Figure 1 - Block Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2006, Zarlink Semiconductor Inc. All Rights Reserved.


ZL30121 데이터시트, 핀배열, 회로
ZL30121
Applications
• AdvancedTCATM Systems
• Multi-Service Edge Switches or Routers
• Multi-Service Provisioning Platforms (MSPPs)
• Add-Drop Multiplexers (ADMs)
• Wireless/Wireline Gateways
• Wireless Base Stations
• DSLAM / Next Gen DLC
• Core Routers
Data Sheet
2
Zarlink Semiconductor Inc.




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