SiTime debuts MEMS Integrated Clock Chip for Data Centers

SiTime unveiled its Chorus family of clock generators for AI datacenter applications. 

The company says its Chorus  family of clock-system-on-a-chip (ClkSoC) devices achieves a tenfold increase in performance while occupying only half the size of traditional standalone oscillators and clocks. This innovative design integrates clock, oscillator, and resonator technologies into a single chip, streamlining system clock architecture and reducing design time by up to six weeks. By incorporating timing products recently acquired from Aura Semiconductor, Chorus enhances its strategy to provide a comprehensive suite of uniquely differentiated solutions.

Key Features of SiTime’s Chorus SiT91211 and SiT91213 Clock Generator

• Higher Performance: Delivers up to 10X better resilience with integrated MEMS resonator.
• Design Simplicity: Integrated MEMS technology speeds the design process and eliminates common issues such as noise and impedance matching with integrated MEMS resonator.
• Smaller Footprint: up to half the size in a 4 mm x 4 mm QFN.
• Low RMS Phase Jitter: 70 femtoseconds typical (12 kHz to 20 MHz).
• Flexible Frequency: Programmable frequency from 1 MHz to 700 MHz.
• Flexible Output Types: Up to four differential (LVPECL, LVDS, LPHCSL) or eight LVCMOS outputs.
• Flexible Supply Voltage: Programmable, 1.8V, 2.5V, or 3.3V.
• Reduced Power and Simplified Circuitry: FlexSwing™ output reduces power consumption and eliminates termination resistors.
• Excellent Frequency Stability: ±20 ppm and ±50 ppm from -40°C to 105°C.
• EMI Reduction: Configurable spread-spectrum clock generation.
• Compliant with the Latest PCIe Standard: Generation 1 to 6.
• Enhanced System Robustness: Clock fault monitors (Lock Loss).

“AI is driving tremendous needs for higher data throughput in datacenters and lower power consumption, and SiTime is uniquely positioned to help address these issues,” said Piyush Sevalia, executive vice president of marketing at SiTime. “Before Chorus, hardware designers had to use discrete product types, such as clocks, oscillators and resonators, which resulted in performance compromises. Chorus delivers integrated clock generators to solve these problems and is yet another example of how we are transforming the timing market with our unique approach.”

https://www.sitime.com/company/news/press-release/sitime-continues-advance-precision-timing-integrated-clock-chip-ai

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