82V3910 / 82V3911 Synchronous
Ethernet Timing Devices
AnALOG AnD Rf
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inteRfACe AnD COnneCtiVitY
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MeMORY AnD LOGiC
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POWeR MAnAGeMent
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tiMinG AnD sYnCHROniZAtiOn
Benefits
• The first SyncE compliant timing solution that meets the
most stringent 10G or 40G Ethernet jitter requirements
• Reduces design complexity
• Integrated jitter attenuators reduce overall system cost
• Reduces external passive component count
• IDT device drivers simplify and optimize device
configuration
• Extensive compliance to timing synchronization
standards:
– Synchronous Ethernet
– SONET/SDH
– PDH Synchronization
feAtURes
• Less than 300 fs RMS (10 KHz – 20 MHz) phase jitter
• Hitless reference switching produces a stable output
frequency when the primary input clock has failed
• Programmable loop bandwidth
• Locks to a wide range of clocks
• Locks to 1PPS clock (82V3910 only) and 1PPS sync pulse
• Supports ITU-T G.8261/G.8262 SyncE compliant
equipment
• Supports clock generation for IEEE-1588 applications
• Generates interface clocks for 10GBASE-R, 10GBASE-W
and 40GBASE-R
• Generates SONET/SDH interface clocks
(OC-192/STM-64)
tARGet MARKets
• Communications
• Networking
tARGet APPLiCAtiOns
• Timing of 10 G and 40 G SyncE Ports
• Central office timing source
• Carrier and access IP switches
• Carrier and access routers
• Broadband and multi-service access and
transport equipment
single-chip synce Devices Can time AnY 10G
or 40G ethernet PHY
The 82V3910 and 82V3911 Synchronous Ethernet (SyncE) devices are the industry’s first
single-chip timing solution that can be used with ANY Ethernet PHY on the market. The
devices meet the most stringent 10G or 40G Ethernet jitter performance requirements.
Traditional board designs would need at least two chips in order to meet G.8262
requirements and perform both frequency translation and jitter attenuation. The IDT
82V3910 and IDT 82V3911 chips integrate both analog and digital phase locked loops
(PLLs) to generate two independent high performance clocks that address the stringent
low-jitter requirements found in 10G and 40G Ethernet applications. In addition, passive
components are integrated to reduce the number of external components on the board
required for power supply noise rejection and filters for the analog PLLs. By having all
this integrated into a single chip, these devices reduce design complexity as well as
reduce overall BOM cost for systems.
Ultimate solution in performance and versatility
The IDT 82V3910 is a Synchronous Ethernet timing source (SETS) that complies with all
SyncE standards. This device is ideal for use on controller cards in multi-card Carrier
Ethernet systems and is uniquely suited for single board systems where the SETS will
directly time a 10G or 40G PHY. The IDT 82V3911 supports and preserves G.8262 (SyncE)
compliance of the reference coming from the SETS. Its function is to provide frequency
translation and jitter attenuation on line cards for systems that already have SETS
devices and provide a rate conversion path back to the SETS. Both devices offer the
best jitter performance on the market and can be used with any Ethernet PHY.
Discover what iDt know-how
can do for you! www.idt.com
iDt
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THE ANALOG + DIGITAL COMPANY
DISCLAIMER Integrated Device Technology, Inc. (IDT) and its subsidiaries reserve the right to modify the products and/or specifications described herein at any time and at IDT’s sole discretion. All information in this docu-
ment, including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent
state and are not guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, includ-
ing, but not limited to, the suitability of IDT’s products for any particular purpose, an implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a
guide and does not convey any license under intellectual property rights of IDT or any third parties. IDT’s products are not intended for use in life support systems or similar devices where the failure or malfunction of an IDT
product can be reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.
Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Other trademarks and service marks used herein, including protected names, logos and designs, are the property of IDT or their respec-
tive third party owners. © Copyright 2013. All rights reserved.
PB_SyncE_82V3910-11_RevA0713
iDt 82V3910/ 82V3911 PRODUCt BRief
PCB Design
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