TECHNOLOGY GUIDE: SYNCHRONOUS ETHERNET Discovery Questions to Help Learn a Customer’s Requirements Discover Zarlink’s Synchronization Solutions Zarlink Synchronous Ethernet devices are designed to pro- General vide complete physical layer synchronization for packet What is your timing architecture—Distributed or Centralized? Is this for 1 Gigabit or 10 Gigabit applications? What are some of the key clock frequencies required for your design—Input and Output frequencies? How many timing paths are required? network. As single-chip solution, these highly programmable synthesizers generate multiple high-speed clocks with low jitter and provide wander filtering. The dual PLL design enables rate converters from Telecom Synchronous Ethernet Specific frequencies to Ethernet frequencies and vice versa. These Do you need to meet the SyncE network synchronization standard? devices are in full compliance with strict performance specifications outlined in the ITU-T Recommendation G.8262 and • If yes you need a timing card product—single or dual DPLL? • If no you need a line card product— Gigabit or 10Gigabit Ethernet? Single or dual DPLL? Hitless reference switching? they fully support 1 GbE and 10 GbE PHY. With the dual PLL devices, both the Transmit and Receive paths can be man- What logic levels are required (LVPECL, CMOS, LVDS, etc.)? What are the specific jitter requirements for each clock? aged within a single device. Communication Equipment Application Diagram Derived Output BITS A Master Timing Card LIU LIU Derived Output BITS B LIU LIU Slave Timing Card LIU LIU XOVER ZL30143 ZL30143 P P S A A B S Line Recovered Timing A System Timing Bus B P S B A Rx A B B Rx ZL30160 Tx 1GbE Line Card PHY XAUI ZL30136 ZL30132 PHY 1GbE Line Card 10GbE PHY Line Card ZL30146 10GbE Line Card Tx PHY TECHNOLOGY GUIDE: SYNCHRONOUS ETHERNET Selector Guide for Ethernet PHY Synchronization Ethernet PHY (Input clocks) Line Card applications Marvell 88E1145 Gigabit Ethernet 25 MHz or 125MHz Dual PLL, 5 Ref/1 Sync inputs, 3 output CLKs Loop filter > 10Hz ZL30146 Marvell 88E11340S Gigabit Ethernet 25 MHz or 125MHz ZL30145 Single PLL, 1 Ref input, 1 output CLK ZL30321 Dual PLL, 8 Ref/3 Sync inputs, 6 output CLKs ZL30136 Single PLL, 3 Ref/3 Sync inputs 2 output CLKs ZL30160* Quad PLL, 4 Ref inputs, 20 output CLKs AMCC S19263 10 Gigabit Ethernet 156.25MHz ZL30146 Dual PLL, 5 Ref/1 Sync inputs, 3 output CLKs ZL30145 Single PLL, 1 Ref input, 1 output CLK ZL30132 Single PLL, 3 Ref/3 Sync inputs 3 output CLKs Central Timing Card Loop filter 0.1Hz for EEC Option 2 (N. America) Loop filter 1 Hz for EEC Option 1(Europe & Asia) ZL30142 Single PLL, 3 Ref/Sync inputs 3 Output CLKs, Stratum 3 ZL30143 Dual PLL, 9 Ref/4 Sync inputs 8 Output CLKs, Stratum 3 ZL30138 Dual PLL. 9 Ref/4 Sync inputs 8 Output CLKs, Stratum 3E ZL30142 Single PLL, 3 Ref/Sync inputs 3 Output CLKs, Stratum 3 ZL30143 Dual PLL, 9 Ref/4 Sync inputs 8 Output CLKs, Stratum 3 ZL30138 Dual PLL, 9 Ref/4 Sync inputs 8 Output CLKs, Stratum 3E ZL30146 Dual PLL, 5 Ref/1 Sync inputs, 3 output CLKs ZL30145 Single PLL, 1 Ref input, 1 output CLK PMC Sierra PM3386, PM3387 PM3388 Gigabit Ethernet 25MHz or 125MHz PM3392, PM3393 10 Gigabit Ethernet 156.25MHz ZL30321 Dual PLL, 8 Ref/3 Sync inputs, 6 output CLKs ZL30136 Single PLL, 3 Ref/3 Sync inputs 2 output CLKs ZL30160* Quad PLL, 4 Ref inputs, 20 output CLKs ZL30146 Dual PLL, 5 Ref/1 Sync inputs, 3 output CLKs ZL30142 Single PLL, 3 Ref/Sync inputs 3 Output CLKs, Stratum 3 ZL30143 Dual PLL, 9 Ref/4 Sync inputs 8 Output CLKs, Stratum 3 ZL30138 Dual PLL. 9 Ref/4 Sync inputs 8 Output CLKs, Stratum 3E ZL30145 Single PLL, 1 Ref input, 1 output CLK ZL30132 Single PLL, 3 Ref/3 Sync inputs 3 output CLKs * New ClockCenter Product Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries is believed to be reliable. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. ZARLINK, ZL, and the Zarlink logo are trademarks of Zarlink Semiconductor Inc. © 2010, Zarlink Semiconductor Inc. All Rights Reserved. Publication Number 10ZS069v7 www.ZARLINK.com