New Release | Saisi's ultra-low jitter differential crystal oscillator empowers high-speed interconnection of AI servers and optical modules.

The exponential growth of AI computing power is driving comprehensive technological upgrades in computing infrastructure. Next-generation AI servers and 800G/1.6T optical modules now demand higher precision in timing synchronization. Saisi has launched its groundbreaking ultra-low-jitter differential crystal oscillator series, delivering high-performance timing solutions for high-speed interconnects in AI servers and optical modules.

1. High-speed interconnection, clock jitter becomes the core bottleneck

AI servers are now entering a new phase of development characterized by scale-out, scale-up, and cross-data center expansion. The exponential growth in massive data exchange demands between GPUs, server racks, and even entire data centers is driving optical modules to rapidly evolve toward 800G,1.6T, and even higher speeds.

Goldman Sachs estimates that the global optical module market will reach $37 billion by 2027, with 800G/1.6T high-speed modules emerging as the market leader. The high-speed interconnect sector has now entered a critical phase of technological advancement.

In this context, crystal oscillators—core components that deliver high-precision clock signals and frequency control for optical modules and AI servers—determine the system's operational ceiling through their performance.

In high-speed data transmission, the clock acts as the system's "heartbeat". Clock jitter refers to the minute deviation of clock edges from ideal timing. In 112G/224G SerDes and higher-speed interconnect links, this deviation is progressively amplified, making it difficult for receivers to accurately identify signals and significantly reducing system reliability and performance limits. Therefore, reducing clock jitter means creating a clearer and more stable data transmission channel. Elevating clock jitter from picosecond-level to femtosecond-level has become the core key to unlocking next-generation high-speed interconnection systems.

02 New Heavyweight! Saisi Ultra-Low Shaking Series Differential Crystal Oscillator

Leveraging its technical expertise in high-frequency, ultra-low-jitter clock synchronization, Saisi has launched a new series of ultra-low-jitter differential crystal oscillators, delivering high-performance timing solutions for AI servers and optical modules.

● Femtosecond-level precision: Compared to conventional crystal oscillators with 1-3ps jitter, Saisi has reduced the typical phase jitter of differential crystal oscillators to 44fs@156.25MHz (1fs=0.001ps), achieving a performance leap of an order of magnitude. This breakthrough enables it to effortlessly meet the stringent timing requirements of 400G/800G/1.6T optical modules and next-generation AI server interconnects.

● Superior Anti-Jamming Performance: In the complex electromagnetic environment of AI servers with high density and power consumption, traditional timing solutions are highly susceptible to electromagnetic interference during long-distance transmission, leading to compromised signal integrity. Saisi's differential crystal oscillator, with its exceptional anti-jamming capabilities and low phase noise, ensures the purity and stability of clock signals even under long-distance transmission and harsh electromagnetic conditions, thereby safeguarding system signal integrity at its source.

● Multiple package sizes: More than just performance. To address the increasingly stringent space constraints of optical modules and AI acceleration cards, Saisi offers various packaging options, including mainstream SMD packages such as 2.5×2.0mm, 3.2×2.5mm, 5.0×3.2mm, and 7.0×5.0mm. Among these, micro-sized packages like 2520 and 3225 maintain ultra-low jitter at 44fs while reserving valuable space for system cooling and layout, making them particularly suitable for high-density designs.

● Full-range compatibility: The Saisi differential crystal oscillator series supports a wide frequency range from 25MHz to 625MHz, covering mainstream optical module and server frequencies such as 156.25MHz and 312.5MHz. The products also provide multiple differential output signals including LVPECL, LVDS, and HCSL, operating within a voltage range of 1.8V to 3.3V. Featuring a low-power design, they seamlessly integrate into various systems, significantly enhancing integration efficiency and overall energy efficiency.

3. Empowering the Future: Accelerating the Evolution of AI and All-Optical Interconnection

Driven by the dual forces of computing power revolution and data deluge, the precision and stability of clock signals have become pivotal to building core competitiveness in next-generation AI and communication infrastructure. As AI large models scale up to trillions of parameters and data center interconnection bandwidth continues to break through, industry demands for temporal accuracy will keep rising.

The Saisi ultra-low jitter differential crystal oscillator series not only provides a reliable 'timing heart' for current 800G/1.6T high-speed interconnects, but also anticipates the technological evolution needs of 3.2T and higher rates. With femtosecond-level precision, strong anti-interference capability, and high integration, it precisely meets the future demands of data centers for high density, low power consumption, and high reliability.

Going forward, Saisi will persistently push the boundaries of time-series technology, delivering unparalleled precision and reliability to accelerate the dawn of a new era where everything is intelligently interconnected, alongside industry partners.