pcm4l PTP Clock Manager for Linux

PublishTime：2023-06-26

■The PTP Clock Manager for Linux (pcm4l) is designed as a high-performance clock recovery solution for packet-based time/phase/frequency synchronization. The pcm4l software includes the features required to meet the ITU-T Telecom packet equipment clock recommendations, including a packet clock state machine.
■In complex networks with partially unknown packet delays, typical in telecom applications, pcm4l offers patented filter algorithms that help to improve synchronization accuracy with time/phase accuracy of under 1 microsecond and frequency accuracy of under 16 parts-per-billion (ppb).
■In networks with full IEEE 1588 support that are made up of Boundary Clock (BC) or Transparent Clock (TC) nodes, the pcm4l offers an outlier detection algorithm, used in conjunction with the Renesas ITU-T G.8273.2 hardware filter, which helps to improve synchronization accuracy with time/phase accuracy of under 5ns filtered (provisional Class D). These tight requirements dictate the use of timing hardware for the synthesis of the physical clock.
■The adaptive servo is implemented in software running on a host processor that controls the PTP Hardware Clock (PHC). The IEEE 1588 protocol also runs on a host processor but does not need to be co-located with pcm4l (i.e., a different processor). The pcm4l architecture and interfaces makes it ideal for open-source architectures, such as White Box hardware and O-RAN.

Brand of Product：	Renesas
Part#：	pcm4l More Part#
Product Category：	PTP Clock Manager More
Application：	[ Linux ][ Wireless infrastructure ][ 4.5G network equipment ][ 5G network equipment ][ Telecom Boundary Clocks (T-BCs) ][ Telecom Time Slave Clocks (T-TSCs) ][ Full Timing Support (FTS) networks ][ Assisted Partial Timing Support (APTS) networks ][ Partial Timing Support (PTS) networks ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	Sep.28.21
Version Number：	Rev.1.01
Data Encoding：	R31DS0087EU0101
Data Size：	3 MB

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