SiTime Launches Elite 2 Super-TCXO Chip for AI GPU Clusters

SiTime announced the Elite 2 Super-TCXO timing chip on May 12. The company positions this new component as a solution for synchronization bottlenecks in AI data center clusters. The chip targets the specific latency issues that currently limit GPU efficiency in large-scale computing environments.

Chip utilizes DualMEMS architecture to maintain stability across wide temperature range

The Elite 2 Super-TCXO achieves synchronization precision of less than 1 nanosecond. This performance is significantly lower than the 90 to 450 nanosecond error range typical of market competitors. SiTime claims this improvement reduces time synchronization error by over 100 times compared to existing solutions.

Spec comparison

The chip utilizes a DualMEMS architecture to maintain stability across a wide temperature range. It operates with a frequency temperature slope of ±2ppb/°C and an Allan Deviation of 6×10⁻¹². The device maintains ±50ppb stability between -40°C and 105°C while consuming only 22mW of power.

Public industry data indicates that AI cluster GPU utilization is currently capped at 20% to 40% due to synchronization wait cycles. Clock drift forces systems to insert wait states, which drastically reduces overall hardware efficiency. The Elite 2 Super-TCXO aims to eliminate these delays to allow for higher compute throughput.

SiTime plans to begin mass production of the Elite 2 Super-TCXO in the third quarter of 2026. The product will be available globally upon release. The chip comes in a 3.2mm x 2.5mm plastic package and a 5.0mm x 3.2mm ceramic package.