Microchip Technology has introduced the TimeProvider 4500 v3 grandmaster clock, a device designed to deliver sub-nanosecond accuracy for time distribution over distances up to 800 kilometers using long-haul optical transmission networks. The announcement comes as governments urge critical infrastructure operators to adopt alternative timing sources beyond Global Navigation Satellite Systems (GNSS) to strengthen network resilience and reliability.
The new system aims to address the challenges associated with GNSS-dependent deployments, such as signal interference and security risks. Unlike most current solutions that require GNSS at grandmaster sites, the TimeProvider 4500 enables highly resilient synchronization without relying on satellite-based timing. It supports time references provided by UTC(k) from national laboratories and is the first grandmaster clock to offer High Accuracy Time Transfer (HA-TT) in accordance with ITU-T G.8271.1/Y.1366.1 (01/2024), achieving five nanoseconds of time delay over 800 kilometers.
According to Microchip, the system can be configured in multiple operation modes, forming an end-to-end architecture known as virtual Primary Reference Time Clock (vPRTC). This carrier-grade solution allows precise timing distribution across long distances through terrestrial networks—a method already adopted by operators worldwide. HA-TT is described by Microchip as a cost-effective approach compared to other Positioning, Navigation and Timing (PNT) alternatives that remain less mature and still depend on GNSS.
Randy Brudzinski, corporate vice president of Microchip’s frequency and time systems business unit, said: “The TimeProvider 4500 v3 grandmaster is a breakthrough solution that empowers operators to deploy a terrestrial, standards-based timing network with unprecedented accuracy and resilience. This innovation reflects Microchip’s commitment to delivering the most advanced and reliable timing solutions for the world’s most essential services.”
The company states that this release represents progress toward supporting the upcoming ITU-T G.8272.2 standard for coherent network reference time clocks (cnPRTC), which aims for robust timekeeping even during regional or network-wide GNSS outages.
Key features of the TimeProvider 4500 v3 include five-nanosecond delay accuracy over long distances, integration capabilities with existing Ethernet and optical deployments, premium software features exclusive to this model using Microchip’s PolarFire FPGA technology, and suitability for sectors like telecommunications, utilities, transportation, government, and defense.
The product expands Microchip’s IEEE-1588 Precision Time Protocol (PTP) portfolio intended for applications ranging from small-scale indoor environments to high-capacity 5G networks. The company offers technical support throughout all stages of design development across various industries including industrial, automotive, aerospace and defense.
The TimeProvider 4500 v3 is available in production quantities through Microchip sales representatives or authorized distributors.
