IDT IDT82V3399

SYNCHRONOUS ETHERNET WAN PLL
and Clock Generation for IEEE-1588
FEATURES
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HIGHLIGHTS
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Single chip PLL:
• Features 0.5 mHz to 560 Hz bandwidth
• Provides node clock for ITU-T G.8261/G.8262 Synchronous
Ethernet (SyncE)
• Exceeds GR-253-CORE (OC-192) and ITU-T G.813 (STM-64)
jitter generation requirements
• Provides node clocks for Cellular and WLL base-station (GSM
and 3G networks)
• Provides clocks for DSL access concentrators (DSLAM), especially for Japan TCM-ISDN network timing based ADSL equipments
• Provides clocks for 1 Gigabit and 10 Gigabit Ethernet applications
• It supports clock generation for IEEE-1588 application
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MAIN FEATURES
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Provides an integrated single-chip solution for Synchronous Equipment Timing Source, including Stratum 3, 4E, 4, SMC, EEC-Option
1 and EEC-Option 2 Clocks
Provides SONET clocks with less than 1.3ps of RMS Phase Jitter
(12 kHz - 20 MHz)
Supports 1PPS input and output
Employs PLL architecture to feature excellent jitter performance
and minimize the number of the external components
Integrates T0 DPLL and T4 DPLL; T4 DPLL locks independently or
locks to T0 DPLL
Supports programmable DPLL bandwidth (0.5 mHz to 560 Hz in 19
steps) and damping factor (1.2 to 20 in 5 steps)
Supports 1.1X10-5 ppm absolute holdover accuracy and 4.4X10-8
ppm instantaneous holdover accuracy
Supports hitless reference switching to minimize phase transients
on T0 DPLL output to be no more than 0.61 ns
Supports programmable input-to-output phase offset adjustment
Limits the phase and frequency offset of the outputs
Provides OUT1~OUT6 output clocks whose frequencies cover from
1 Hz (1PPS) to 644.53125 MHz
• Includes 25 MHz, 125 MHz and 156.25 MHz for CMOS outputs
• Includes 25.78125 MHz, 128.90625 MHz, 161.1328125 MHz, for
CMOS outputs
• Includes 25 MHz,125 MHz, 156.25 MHz, 312.5 MHz and 625
MHz for differential outputs
• Includes 25.78125 MHz, 128.90625 MHz, 161.1328125 MHz,
322.265625 MHz and 644.53125 MHz for differential outputs
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Product Brief
IDT82V3399
Provides IN1~IN6 input clocks whose frequencies cover from 1 Hz
(1PPS) to 625 MHz
• Includes 25 MHz, 125 MHz and 156.25 MHz for CMOS inputs
• Includes 25 MHz, 156.25 MHz, 312.5 MHz and 625 MHz for differential inputs
Internal DCO can be controlled by an external processor to be used
for IEEE-1588 clock generation
Supports Forced or Automatic operating mode switch controlled by
an internal state machine. It supports Free- Run, Locked and Holdover modes
Supports manual and automatic selected input clock switch
Supports automatic hitless selected input clock switch on clock failure
Supports three types of input clock sources: recovered clock from
STM-N or OC-n, PDH network synchronization timing and external
synchronization reference timing
Provides a 2 kHz, 4 kHz, or 8 kHz frame sync input signal, and a 2
kHz or 8 kHz frame sync output signal
Provides a 1PPS sync input signal and a 1PPS sync output signal
Provides output clocks for BITS, GPS, 3G, GSM, etc.
Supports PECL/LVDS and CMOS input/output technologies
Supports master clock calibration
Supports Master/Slave application (two chips used together) to
enable system protection against single chip failure
Supports Telcordia GR-1244-CORE, Telcordia GR-253-CORE,
ITU-T G.812, ITU-T G.8262. ITU-T G.813 and ITU-T G.783 recommendations
OTHER FEATURES
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I2C and Serial microprocessor interface modes
IEEE 1149.1 JTAG Boundary Scan
Single 3.3 V operation with 5 V tolerant CMOS I/Os
72-pin QFN package, green package options available
APPLICATIONS
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1 Gigabit Ethernet and 10 Gigabit Ethernet
BITS / SSU
SMC / SEC (SONET / SDH)
DWDM cross-connect and transmission equipment
Synchronous Ethernet equipment
Central Office Timing Source and Distribution
Core and access IP switches / routers
Gigabit and terabit IP switches / routers
IP and ATM core switches and access equipment
Cellular and WLL base-station node clocks
Broadband and multi-service access equipment
IDT and the IDT logo are trademarks of Integrated Device Technology, Inc.
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 2012 Integrated Device Technology, Inc.
March 5, 2012
DSC-7238/-
IDT82V3399 PRODUCT BRIEF
SYNCHRONOUS ETHERNET WAN PLL AND CLOCK GENERATION FOR IEEE-1588
DESCRIPTION
acquired in Locked mode. Whatever the operating mode is, the DPLL
gives a stable performance without being affected by operating conditions or silicon process variations.
The IDT82V3399 is an integrated, single-chip solution for the Synchronous Equipment Timing Source for Stratum 3, 4E, 4, SMC, EECOption1, EEC-Option2 clocks in SONET / SDH / Synchronous Ethernet
equipment, DWDM and Wireless base station.
There are 2 high performance APLLs that can be used for low jitter
SONET and Ethernet Clocks
The device supports several types of input clock sources: recovered
clock from Synchronous Ethernet, STM-N or OC-n, PDH network synchronization timing and external synchronization reference timing.
The device provides programmable DPLL bandwidths: 0.5 mHz to
560 Hz in 19 steps and damping factors: 1.2 to 20 in 5 steps. Different
settings cover all SONET / SDH clock synchronization requirements.
The device consists of T0 and T4 paths. The T0 path is a high quality
and highly configurable path to provide system clock for node timing
synchronization within a SONET / SDH / Synchronous Ethernet network.
The T4 path is simpler and less configurable for equipment synchronization. The T4 path locks independently from the T0 path or locks to the T0
path.
A highly stable input is required for the master clock in different applications. The master clock is used as a reference clock for all the internal
circuits in the device. It can be calibrated within ±741 ppm.
All the read/write registers are accessed through a microprocessor
interface. The device supports I2C and serial microprocessor interface
modes.
An input clock is automatically or manually selected for T0 and T4
path. Both the T0 and T4 paths support three primary operating modes:
Free-Run, Locked and Holdover. In Free-Run mode, the DPLL refers to
the master clock. In Locked mode, the DPLL locks to the selected input
clock. In Holdover mode, the DPLL resorts to the frequency data
Description
In general, the device can be used in Master/Slave application. In
this application, two devices should be used together to enable system
protection against single chip failure.
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March 5, 2012
IDT82V3399 PRODUCT BRIEF
SYNCHRONOUS ETHERNET WAN PLL AND CLOCK GENERATION FOR IEEE-1588
FUNCTIONAL BLOCK DIAGRAM
T4 Input
Selector
T4
APLL
MUX
T4 DPLL
T4 APLL
OUT1
MUX
Divider
OUT1
OUT2
MUX
Divider
OUT2
OUT3
MUX
Divider
OUT3
OUT4
MUX
Divider
OUT4
OUT5
MUX
Divider
OUT5_POS
OUT5_NEG
OUT6
MUX
Divider
OUT6_POS
OUT6_NEG
Auto
Divider
FRSYNC_8K_1PPS
Auto
Divider
MFRSYNC_2K_1PPS
Input
IN1
IN2
Input Pre-Divider
Priority
Input Pre-Divider
Priority
IN3
IN4
IN5
IN6
Input Pre-Divider
Priority
EX_SYNC1
EX_SYNC2
Input Pre-Divider
Priority
Input Pre-Divider
Priority
Input Pre-Divider
Priority
Monitors
Selection
T0 Input
Selector
T0
APLL
MUX
T0 DPLL
T0 APLL
Microprocessor Interface
APLL
JTAG
OSCI
Output
Figure 1. Functional Block Diagram
Functional Block Diagram
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March 5, 2012
IDT82V3399 PRODUCT BRIEF
SYNCHRONOUS ETHERNET WAN PLL AND CLOCK GENERATION FOR IEEE-1588
ORDERING INFORMATION
XXXXXXX
Device Type
XX
X
Process /
Temperature
Range
Blank
Industrial (- 40 °C to+ 85 °C)
NLG
Green Quad Flatpack, No Lead (VFQFP-N, NLG72)
82V3399B WAN PLL
REVISION HISTORY
March 5, 2012:
Initial Release
While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology (IDT) assumes no responsibility for either its use or for the infringement
of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial and industrial
applications. Any other applications, such as those requiring high reliability or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT
reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments.
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March 5, 2012
IDT82V3399 PRODUCT BRIEF
SYNCHRONOUS ETHERNET WAN PLL AND CLOCK GENERATION FOR IEEE-1588
We’ve Got Your Timing Solution
6024 Silver Creek Valley Road
San Jose, California 95138
Sales
800-345-7015 (inside USA)
+408-284-8200 (outside USA)
Fax: 408-284-2775
www.IDT.com/go/contactIDT
Technical Support
netcom@idt.com
+480-763-2056
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 document, 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, including, 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 respective
third party owners.
Copyright 2012. All rights reserved.
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March 5, 2012