Microchip ZL30267LDG1: A High-Performance Dual DPLL Network Synchronizer Clock IC

In the demanding world of modern telecommunications, data centers, and industrial automation, precise timing and synchronization are not just beneficial—they are absolutely critical. The Microchip ZL30267LDG1 stands out as a premier solution engineered to meet these rigorous requirements. This advanced integrated circuit is a highly flexible Dual DPLL (Digital Phase-Locked Loop) network synchronizer designed to generate and distribute extremely accurate clock signals across complex systems.

The core strength of the ZL30267LDG1 lies in its sophisticated architecture. It integrates two independent DPLLs, allowing it to handle multiple reference clocks simultaneously. This enables robust hitless switching between input references. If the primary clock source fails or degrades, the device can seamlessly and instantaneously switch to a secondary backup without introducing any phase hits or interruptions to the output clocks. This capability is vital for maintaining uninterrupted service in 5G infrastructure, wireless base stations, and mission-critical network gear.

Furthermore, the device offers exceptional jitter and wander performance, exceeding the stringent standards set by ITU-T G.8262 for Synchronous Ethernet (SyncE) and supporting requirements for IEEE 1588 Precision Time Protocol (PTP). By cleaning up noisy incoming clock signals and generating low-jitter outputs, it ensures data integrity and minimizes error rates in high-speed serial links.

Its programmability is another key feature. The ZL30267LDG1 can generate a wide range of frequencies for various applications, from standard telecom profiles like 1PPS, 2.048 MHz, and 19.44 MHz to custom frequencies. This flexibility, managed via an I²C or SPI interface, makes it a single-clock solution for a diverse array of equipment, simplifying board design and inventory management.

ICGOODFIND: The Microchip ZL30267LDG1 is an exceptional clock synchronizer IC that provides design engineers with a reliable, high-performance, and flexible solution for ensuring timing integrity in next-generation network infrastructure.

Keywords:

Clock Synchronization

Dual DPLL

Hitless Switching

Jitter Attenuation

Synchronous Ethernet (SyncE)