Timing over Packet Networks (ToPSync)
  • ACS9510
    • ToPSync® Timing-over-packet synchronization technology
  • ACS9550
    • ToPSync® Timing-over-packet synchronization technology slave 1588 device
  • ACS9593T
    • ToPSync® Timing-over-packet synchronization technology slave 1588 device
  • SC561
    • Dual Output Low Noise LDO Linear Regulator
  • SC810
    • Single Input/Single Mode Single-cell Li-ion Battery Charger
  • SCDAS4F
    • Standard Recovery, High Current Center Tap and Doubler Rectifier Assemblies
Semtech ACS9510

Semtech ACS9510

ToPSync® Timing-over-packet synchronization technology

The ACS9510 is a multi-role device that can be used to provide SETS functionality in traditional TDM equipment (TDM Timing mode). Alternatively, it can provide standards-based timing for equipment used in packet switched networks (PTP Grandmaster and PTP Slave modes). Press Release >>

The ACS9510 has different operational modes:

  • PTP Grandmaster - packet clock master mode in which the device locks to a reference source and implements PTP Grandmaster functions (supporting frequency or time transportation across packet networks). Reference sources can be frequency-only or can include time (either a traceable Time-of-Day, such as GPS or UTC, or something with an arbitrary epoch). The device has a holdover mode which is invoked when the reference is lost.
  • PTP Slave - packet clock slave in which the device locks to PTP timing packets and implements IEEE 1588 slave functions. In this mode, the ACS9510 combines the PTP protocol with Semtech's patented packet delay filtering algorithms, so that it automatically adapts to changes in packet delay variation (packet jitter) and network reconfigurations. Hence, the device maintains the required timing performance for many telecom applications without the need to adapt switches or routers in the network. A holdover mode is available if the timing packet stream fails.
  • TDM Timing - TDM clock mode in which the device provides SETS functionality for standard SONET/SDH phase-locked loops, synchronizing to standard telecom reference/recovered clocks and generating a wide variety of dejittered telecom line interface clocks and frame pulses compliant with ITU-T G.81214/G.81315 and Telcordia GR-1244-CORE24/GR-25322. A holdover mode is available when all references are lost.
All ToPSync products come with a full support package including:
  • Datasheet
  • User Guide
  • Evaluation system
  • Application schematics and layouts
  • API driver code and messaging system with documentation
  • PTP Network management GUI tool
  • ToPSim network simulator and delay data analysis tool
For complete datasheet and software email Support_TOP@semtech.com.

Features


  • Fully integrated - IEEE1588 PTP Grandmaster, PTP Slave and SONET/SDH clock (TDM Timing) solution. Integrates hardware precision timestamping with on-the-fly insertion (no follow-up packets required). Powerful processor and clock recovery algorithm integrated. Backwards compatibility mode with Semtech ACS8520 SETS.
  • PTP Grandmaster selection - according to Best Master Clock (BMC) algorithm or an alternative.
  • Powerful network delay analysis delivers full time alignment in the slave over hostile networks (including Layer 2 & 3 routed).
  • Dynamic adaptation to network delay variations. Network loading change tolerant (ramps and steps).
  • Operational support - uni-cast only and multicast PTP.
  • Configurable DiffServ codepoint - for high priority packet routing.
  • Precision holdover - in all modes.
  • Interfaces for:
    • 20 clock inputs and 19 clock outputs.
    • Media-independent interface (MII).
    • Time-of-day (ToD) - 1 PPS top-of-second signal plus current-time-since-epoch message: input to PTP Grandmaster mode, output from PTP Slave.
    • SPI compatible and JTAG boundary scan ports.
  • Outputs:
    • Time-aligned output pair: 1 PPS/125 MHz divided by n (n = 4 to 125000).
    • Frequency-aligned outputs: 1 Hz and programmable frequency 1 kHz to 62.5 MHz.
    • Low jitter frequency-aligned outputs: n x E1, n x DS1, frame sync + multi-frame sync clocks.
    • SONET and SDH OC-n rates: 3.84 MHz to 155.52 MHz.
  • Supports operation with a local oscillator of frequency accuracy to ±20 ppm or better.
  • Time alignment performance better than ±2 μs on a managed 5-switch GbE network under G.8261 test conditions.*
  • Frequency alignment performance better than ±10 ppb on a managed 5-switch GbE network under G.8261 test conditions.*
  • Standard compliance - IEEE 1588 v2, G.8261.

* This is an indication of Semtech tested performance and is not guaranteed across all types of switches and network conditions. Please contact Semtech ToPSync support for further details.

Applications


Packaging

BGA (360 pin 1mm pitch)

Order Codes

  • ACS 9510: Timing-over-packet synchronization technology
  • ACS9510T: Lead (Pb)-free packaged version of ACS9510. RoHS and WEEE compliant.