Product Brief
IDT82V3398
2012 Integrated Device Technology, Inc. DSC-7238/-
SYNCHRONOUS ETHERNET WAN PLL
and Clock Generation for IEEE-1588
IDT and the IDT logo are trademarks of Integrated Device Technology, Inc.
FEATURES
HIGHLIGHTS
• Single PLL chip:
• 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), espe-
cially for Japan TCM-ISDN network timing based ADSL equip-
ments
• Provides clocks for 1 Gigabit and 10 Gigabit Ethernet application
• It supports clock generation for IEEE-1588 applications
MAIN FEATURES
• Provides an integrated single-chip solution for Synchronous Equip-
ment Timing Source, including Stratum 3, 4E, 4, SMC, EEC-Option
1 and EEC-Option 2 Clocks
• Provides SONET clocks with less than 1.5 ps of RMS Phase Jitter
(12 KHz - 20 MHz)
• Supports 1 pps input and output
• Employs PLL architecture to feature excellent jitter performance
and minimize the number of the external components
• Supports programmable DPLL bandwidth from 0.5 mHz to 560 Hz
• 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 the 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
• 1PPS, 400 Hz, 2 kHz, 8 kHz, 64 kHz, N x E1, N x T1, N x 13.0
MHz, N x 3.84 MHz, 5 MHz, 10 MHz, 20 MHz, E3, T3, 6.48 MHz,
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz,
25MHz, 25.78125 MHz, 125 MHz, 128.90625 MHz, 155.52 MHz
or 156.25 MHz or 161.1328125 MHz for CMOS outputs
• 1PPS, 400 Hz, 2 kHz, 8 kHz, 64 kHz, N x E1, N x T1, N x 13.0
MHz, N x 3.84 MHz, 5 MHz, 10 MHz, 20 MHz, 25 MHz, E3, T3,
6.48 MHz, 19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz,
77.76 MHz, 125 MHz, 128.90625 MHz, 155.52 MHz, 156.25
MHz, 161.1328125 MHz, 311.04 MHz, 312.5 MHz, 322.265625
MHz, 622.08 MHz, 625 MHz or 644.53125 MHz for differential
Outputs
• Provides IN1~IN6 input clocks whose frequencies cover from 1 Hz
(1PPS) to 625 MHz
• 1PPS, 2 kHz, 4 kHz, N x 8 kHz, 1.544 MHz, 2.048 MHz, 6.25
MHz, 6.48MHz, 10 MHz, 19.44 MHz, 25 MHz, 25.92 MHz, 38.88
MHz, 51.84 MHz, 77.76 MHz, 125MHz, 155.52 MHz or 156.25
MHz for CMOS inputs
• 1PPS, 2 kHz, 4 kHz, N x 8 kHz, 1.544 MHz, 2.048 MHz, 6.25
MHz, 6.48 MHz, 10 MHz, 19.44 MHz, 25 MHz, 25.92 MHz, 38.88
MHz, 51.84 MHz, 77.76 MHz, 125MHz, 155.52 MHz, 156.25
MHz, 311.04 MHz, 312.5 MHz, 622.08 MHz or 625 MHz for dif-
ferential 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 Hold-
over modes
• Supports manual and automatic selected input clock switch
• Supports automatic hitless selected input clock switch on clock fail-
ure
• Provides a 2 kHz, 4 kHz, 8 kHz, or 1PPS frame sync input signal,
and a 2 kHz, 8 kHz, or 1PPS frame sync output signals
• 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 Recom-
mendations
OTHER FEATURES
• 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
• 1 Gigabit Ethernet and 10 Gigabit Ethernet
• BITS / SSU
• SMC / SEC (SONET / SDH)
• DWDM cross-connect and transmission equipments
• Synchronous Ethernet equipments
• 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 equipments
• Cellular and WLL base-station node clocks
• Broadband and multi-service access equipments
