Short Form Data Sheet
ZL30701/ZL30702/ZL30703/ZL30704
ZL30701/ZL30702/ZL30703/ZL30704
Confidential
ugust 2016
© 2016 Microsemi Corporation
4
2.7.1 Applications
The Time Synchronization Algorithm is suitable for many end application targets.
Frequency accuracy performance for GSM, WCDMA-FDD, LTE-FDD femtocell, small cell (residential, urban,
rural, enterprise), picocell and macrocell applications, with target performance less than ± 15 ppb.
Frequency performance for ITU-T G.823 and G.824 synchronization interface, as well as G.8261 PNT EEC,
PNT PEC and CES interface specifications.
Phase Synchronization performance for WCDMA-TDD, Mobile WiMAX, TD-SCDMA, CDMA2000, LTE-TDD
and LTE-A femtocell, small cell (residential, urban, rural, enterprise), picocell and macrocell applications with
target performance less than ± 1 s phase alignment.
Time Synchronization for TAI, UTC-traceability and GNSS/GPS replacement.
2.7.2 Packet Networks
The Time Synchronization Algorithm is suitable for high performance over a variety of packet networks
ITU-T G.8261 Appendix VI
ITU-T G.8261.1 network limit compliant
ITU-T G.8271.1 network limit compliant
ITU-T G.8271.2 (draft) network limit compliant
Native Ethernet (switched) & IP (routed) networks
xDSL
Microwave
Fully aware, partially aware and unaware timing supported networks
Networks including intermediate Boundary Clocks and Transparent Clocks
Networks with and without SyncE or frequency physical layer support
2.7.3 Clock Specifications
The Time Synchronization Algorithm is suitable to address a variety of standardized clock specifications, including
ITU-T G.8263 PEC-S
ITU-T G.8273.2 T-BC full on-path without SyncE
ITU-T G.8273.2 T-BC full on-path with SyncE
ITU-T G.8273.2 T-TSC full on-path without SyncE
ITU-T G.8273.2 T-TSC full on-path with SyncE
ITU-T G.8273.4 T-BC-P (draft)
ITU-T G.8273.4 T-TSC-A (draft)
ITU-T G.8273.4 T-TSC-P (draft)
2.7.4 Monitoring & Redundancy
The Time Synchronization Algorithm includes monitoring & redundancy for high availability synchronization, including
Synchronization to the best available Server
Client monitoring of secondary Server references
o Monitoring includes full time synchronization reporting of secondary Server
o Supports a programmable number of secondary Server connections
Hitless reference switching between multiple Servers
Holdover when Server packet connectivity is lost
TIE clear option to build out, or clear, phase offsets between Server references
2.7.5 General
The Time Synchronization Algorithm includes many advanced features to aide in the high-accuracy & high-stability
applications, including
Full PLL state machine (Freerun, Holdover, Frequency Lock Acquiring, Frequency Lock Acquired, Phase
Lock Acquired), with programmable thresholds for state transitions
Programmable bandwidth configurability from sub-mHz to 100’s of mHz.
Programmable packet rates from 1 packet/second to over 128 packets/second
User ability to manually add frequency offsets due to temperature or ageing (especially during holdover state)