System Synchronizer for IEEE 1588 - Four Channels

The 8A34003 System Synchronizer for IEEE 1588 generates ultra-low jitter; precision timing signals based on the IEEE 1588 Precision Time Protocol (PTP) and Synchronous Ethernet (SyncE).  The device can be used as a single timing and synchronization source for a system or two of them can be used as a redundant pair for improved system reliability. Digitally Controlled Oscillators (DCOs) are available to be controlled by IEEE 1588 clock recovery servo software running on an external processor. The device supports physical layer timing with Digital PLLs (DPLLs) and other timing blocks necessary to implement a Synchronous Equipment Timing Source (SETS) for SyncE. The DCOs can be controlled using IEEE 1588 information alone, or they can combine IEEE 1588 time information with physical layer frequency information from SyncE in accordance with ITU-T G.8273.2. The device can be used to actively measure and compensate for clock propagation delays across backplanes and across circuit boards to ensure the distribution of accurate time and phase with minimal time error between IEEE 1588 Time Stamp Units (TSUs) in a system. The device supports multiple independent channels that control: IEEE 1588 clock synthesis; SyncE clock generation; jitter attenuation and universal frequency translation.  Input-to-input, input-to-output and output-to-output phase skew can all be precisely managed.  The device outputs ultra-low-jitter clocks that can directly synchronize SERDES running at up to 28Gbps; as well as CPRI/OBSAI, SONET/SDH and PDH interfaces and IEEE 1588 TSUs.


  • Four independent timing channels
  • Jitter output below 150fs RMS (typical)
  • Digital PLLs (DPLLs) lock to any frequency from 0.5Hz to 1GHz
  • DPLLs / Digitally Controlled Oscillators (DCOs) generate any frequency from 0.5Hz to 1GHz
  • DCO outputs can be aligned in phase and frequency with the outputs of any DPLL or DCO
  • DPLLs comply with ITU-T G.8262 for Synchronous Ethernet (SyncE)
  • IEEE 1588 Support:
    • DCOs can be controlled by external IEEE 1588 software to synthesize Precision Time Protocol (PTP) / IEEE 1588 clocks with frequency resolution less than 1.11x10-16
    • Combo Bus simplifies compliance with ITU-T G.8273.2
    • Precise (1ps) resolution for phase measurement and control
    • All outputs/inputs can be configured to decode/encode PWM clock signals
    • PWM can be used to transmit and receive embedded frame and sync pulses; as well as Time of Day (ToD) and other data
  • Device requires a crystal oscillator or fundamental-mode crystal: 25MHz to 54MHz
  • Optional XO_DPLL input allows a wider range for XO, TCXO or OCXO frequencies from 1MHz to 150MHz for applications that require a local oscillator with high stability
  • Serial processor ports support 1MHz I2C or 50MHz SPI

Product Options

Orderable Part ID Part Status Pkg. Code Temp. Grade Carrier Type Buy Sample
8A34003B-000NBG Active NBG48P1 C Tray
8A34003B-000NBG8 Active NBG48P1 C Reel
8A34003B-000NBG# Active NBG48P1 C Reel
8A34003PB-000NBG Active NBG48P1 C Tray
8A34003PB-000NBG8 Active NBG48P1 C Reel
8A34003PB-000NBG# Active NBG48P1 C Reel

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
8A3xxxx Family Errata (Rev B with Update v4.7) Errata PDF 66 KB Dec 1, 2018
8A34003 Datasheet Datasheet PDF 1.36 MB Nov 22, 2018
User Guides & Manuals
8A3xxxx Family Programming Guide (v4.7) Guide PDF 3.31 MB Sep 24, 2018
Application Notes & White Papers
AN-1020 ClockMatrix on nCXO Redundancy Application Note PDF 530 KB Nov 5, 2018
AN-1010 ClockMatrix Time-to-Digital Converter Application Note PDF 1.54 MB Oct 16, 2018
ClockMatrix GUI Step-by-Step User Guide Application Note PDF 4.98 MB Oct 1, 2018
AN-950 82P338XX/9XX Usage of a SYNC Input for Clock Alignment Application Note PDF 175 KB Nov 20, 2016
AN-807 Recommended Crystal Oscillators for NetSynchro WAN PLL Application Note PDF 77 KB Oct 27, 2016
8A3x0xx Schematic Checklist (v1.16) Miscellaneous XLSX 287 KB Dec 3, 2018
Timing Solutions Products Overview Overview PDF 4.11 MB Oct 31, 2018
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016

Software & Tools

Title Other Languages Type Format File Size Date
Timing Commander Personality File for ClockMatrix 8A34001 (v6.0.1, FWv4.7.0) Software ZIP 12.11 MB Nov 13, 2018
EEPROM_Image_PR4.7_Part=24xx1025_Address=0x50-0x54 Software ZIP 177 KB Sep 24, 2018
EEPROM_Image_PR4.7_Part=24xx1024_Address=0x50-0x51 Software ZIP 177 KB Sep 24, 2018
ClockMatrix Register Header Files v4.7 Software ZIP 293 KB Sep 24, 2018
Timing Commander Installer v1.11.0.15609 Software ZIP 18.58 MB Sep 17, 2018
8A340xx Clock Matrix IBIS Model Model - IBIS ZIP 2.40 MB Mar 26, 2018