Grand Launch | Saisi Full Series Crystal Oscillators, Empowering Precise Development of AI Computing Power!

Amid the rapid development of new-quality productive forces, artificial intelligence has become the core engine leading the future. The improvement of AI computing power and stable operation of large models rely on a fundamental underlying support: high-precision time and frequency technology.

With over 10 years of expertise in time-frequency systems, Saisi has achieved full industrial chain layout and independent control of core crystal oscillator technologies and manufacturing. We own a 36,000 ㎡ self-owned factory and are a key player in domestic time-frequency components.Based on the demands of the AI computing era, Saisi has built a full-range crystal oscillator product portfolio, including:

Oven Controlled Crystal Oscillators (OCXO)

Temperature Compensated Crystal Oscillators (TCXO)

Differential Crystal Oscillators (DXO)

Voltage Controlled Crystal Oscillators (VCXO)

Single-ended Active Crystal Oscillators

KHz/MHz Crystal Resonators & Filters

All products deliver industry-leading performance. They are deeply compatible with time-frequency requirements across 5G/6G communications, AI computing centers, large-model servers, high-speed optical modules, automotive electronics, industrial control, consumer electronics and other scenarios.The full series has obtained domestic component certification, supports deep customization, with adjustable packages, frequencies and specifications to meet industry-specific demands.

1. OCXO (Oven Controlled Crystal Oscillator) – Core for High-End & Strict Scenarios

As Saisi’s flagship high-end time-frequency component, Saisi OCXOs match top international performance, ideal for 5G/6G, power, rail transit, high-end industrial control and other ultra-high precision applications. Features include ultra-low phase noise, ultra-high stability, multiple formats, and strong environmental adaptability.

Ultra-low phase noise100 MHz ultra-low phase noise version:≤ -170.03 dBc/Hz @ 1 kHz offset≤ -187.34 dBc/Hz @ 1 MHz offsetStandard version:≤ -159 dBc/Hz @ 1 kHz, ≤ -173 dBc/Hz @ 1 MHzEffectively reduces signal interference and ensures transmission accuracy in high-frequency communications and radar.

High stabilityFrequency stability down to 8.9E-14/s, with models at 5E-12/s and 1E-11/s. Almost no frequency drift over wide temperatures.

Multi-format compatibilityPackages: DIP & SMDDimensions: 92×82×92 mm to 7.7×5.5×3.3 mm (9 sizes)Frequency: 5 MHz – 200 MHzTemp range: -40~+85℃ up to -55~+105℃Output: Sine wave, square waveFully meets hardware integration requirements.

2. TCXO (Temperature Compensated Crystal Oscillator) – High Performance & Cost-Effective

Saisi TCXOs feature performance close to OCXO, excellent specifications, and strong versatility, with high stability, low phase noise, miniaturization and wide-temperature adaptability.

High stabilityTemp stability up to ±0.05 ppm, standard versions ±0.1 ppm / ±0.2 ppm.Aging ≤ ±1 ppm/year.

Excellent low phase noise100 MHz:-119.35 dBc/Hz @ 100 Hz-144.39 dBc/Hz @ 1 kHz-178.05 dBc/Hz @ 1 MHzOutstanding phase stability for signal transmission.

Wide temperature rangeStandard: -40~+85℃High-end: -55~+125℃Stable in extreme automotive, rail and industrial environments.

Miniaturization & anti-vibrationUltra-small packages: 2.0×1.6×0.7 mm, 2.5×2.0×0.7 mmAnti-vibration: ≤ ±0.3 ppb/gVoltage: 1.8V, 3.3V, 5.0VIdeal for wearable and automotive electronics.

3. DXO (Differential Crystal Oscillator) – Star Product for AI Computing & High-Speed Interconnect

Saisi DXO focuses on ultra-low jitter and wide frequency coverage, designed for high-speed data centers, AI servers, optical modules, high-frequency communications. Industry-standard interfaces, leading phase jitter, excellent integration.

Wide frequency range25 MHz – 625 MHz, covering key frequencies 156.25 MHz, 312.5 MHz.High-end models extend to 10 MHz – 1500 MHz.

Femtosecond-level low jitter156.25 MHz: typical 44 fs jitter (vs 1–3 ps for ordinary oscillators).Greatly reduces bit error rate and improves large-model training & inference efficiency.

Wide-temperature high stability-40~+85℃ to -55~+125℃Stability: ±25 ppm / ±30 ppm / ±50 ppmLow long-term drift, less calibration, higher system efficiency.

Multi-interface & miniaturizationOutput: LVPECL, LVDS, HCSLPackages: 2520, 3225, 5032, 7050 SMDDirectly matches FPGA, ASIC, PHY chips.

4. VCXO (Voltage Controlled Crystal Oscillator) – Core for High-Frequency Modulation & RF

Saisi VCXO targets high-frequency modulation, RF communications and high-speed interconnects. Fully domestic, highly customizable, performance comparable to international advanced products.

Ultra-low phase noise & jitterPhase noise: ≤ -173 dBc/Hz @ 1 MHzJitter: down to 16 fs (measured 9.504 fs) over 12 kHz–20 MHzProvides high-purity clock reference, minimizes interference and BER.

High stabilityTemp stability: < ±20 ppm (-40~+85℃)Frequency drift without voltage control is superior to peers.

Wide frequency & multi-level outputPVC series: 10 MHz–1500 MHzVCXO series: 80 MHz–128 MHzSupports real-time voltage tuning.Output: LVDS, CMOS, LVPECLIdeal for PLL, clock synchronization, RF modules, optical communications, FPGA/ASIC.

Mini SMD packages3225, 5032, 7050, optimized for high-density integration.

5. Single-ended Active Crystal Oscillator – Ideal for Medium & Low-Speed Timing

Integrating crystal resonator, oscillation and amplifier circuits, ideal for medium-low speed timing. Features full specifications, high stability, wide compatibility and cost efficiency.Widely used in wireless devices, Ethernet, audio/video, base stations, DSL, ADSL, etc.

Full specificationsFrequency: 32.768 kHz – 200 MHzPackages: 2016, 2520, 3225, 5032, 7050 SMDCovers mini to standard sizes for various PCB designs.

Wide-temperature stability-40~+85℃, -40~+105℃, -55~+125℃Stability: ±25 ppm / ±50 ppm / ±80 ppmStable under vibration, EMI and extreme temperatures.

Wide voltage range1.8V – 3.3V, suitable for battery-powered IoT and portable devices.

6. KHz/MHz Crystal Resonators – General-Purpose Clock for Basic Electronics

Saisi crystal resonators feature high precision, wide temperature and multiple packages, serving consumer electronics, home appliances, industrial control.Full domestic industrial chain ensures stable quality and supply.

Full frequency coverage32.768 kHz tuning fork resonators6 MHz – 156.25 MHz high-frequency resonatorsSatisfy consumer and industrial communication timing.

High precision & wide temperature25℃: ±10 ppm / ±20 ppmIndustrial grade: ±50 ppmSignificantly better than standard passive crystals.

Ultra-miniature packages1.6×1.2×0.4 mm (industry benchmark)2016, 2520, 3225 SMDThrough-hole: HC-49S, HC-49SMD for legacy equipmentNo redesign required, strong compatibility.