SIT9505
Ultra-low jitter MEMS differential oscillator, 41fs RMS, 20x better shock/vibration vs quartz
- Brand： SITIME
- Size/Package： 6P SMD Customized
- Parameter： 50,100,156.25,312.5,625MHZ.etc
- Supply Voltage： 1.8,2.5,3.3,2.25-3.63V,1.71-3.63V
- Output： LVPECL,LVDS,HCSL,Low-power HCSL
- Freq Tolerance： ±20,±25,±30,±50PPM
- Operating Temp： -20 ~ +70°C,-40 ~ +85°C,-40 ~ +95°C,-40~105℃
- Applications： 400G/800G optical modules, AI/ML accelerators, routers, datacenter
- Parameters
- Brand： SITIME
- Size/Package： 6P SMD Customized
- Parameter： 50,100,156.25,312.5,625MHZ.etc
- Supply Voltage： 1.8,2.5,3.3,2.25-3.63V,1.71-3.63V
- Output： LVPECL,LVDS,HCSL,Low-power HCSL
- Freq Tolerance： ±20,±25,±30,±50PPM
- Operating Temp： -20 ~ +70°C,-40 ~ +85°C,-40 ~ +95°C,-40~105℃
- Applications： 400G/800G optical modules, AI/ML accelerators, routers, datacenter
MEMS Differential Oscillators | SiT9505 Series
Product Introduction
SiT9505 is a premium ultra-low jitter differential MEMS oscillator from SITIME for high-speed communications and data centers. Typical phase jitter: 41 fs RMS. Features SITIME's proprietary FlexSwing™ programmable output driver — independently adjusts voltage swing and DC offset, eliminates external bias resistors. ±10 ppm stability, 2.0×1.6 mm package, LVDS/LVPECL outputs, 1.8–3.3V supply. 0.01 ps/mV PSNR — virtually eliminates power-induced jitter. 20× better shock/vibration than quartz. Available through YQM ELECTRONICS (YQM).
Core Advantages
- 41 fs RMS Jitter: 41 fs typical — superior signal integrity and low BER for 400G Ethernet and optical transceivers.
- FlexSwing™ Output: Adjustable voltage swing and DC offset — no external bias resistors, simplified BOM.
- 20× Better vs Quartz: SITIME MEMS: no resonator fracture, no activity dips, no micro-jumps.
- 0.01 ps/mV PSNR: Industry-best power noise rejection — simplified PDN design, fewer decoupling components.
- Stable Semiconductor Supply: Silicon MEMS process — consistent quality, predictable lead times.
Key Features
Applications
400G Ethernet, optical modules, OTN
AI accelerators, servers, storage
Oscilloscopes, spectrum analyzers
High-performance IPCs, harsh env.
Radar, avionics — 20× vibration proof
Edge computing, IoT gateways
FAQ
Q: Drop-in replacement for differential quartz oscillators?
A: Yes. Standard footprints and LVDS/LVPECL pinouts — no PCB changes.
Q: What is FlexSwing™?
A: SITIME's programmable output driver — independently adjusts voltage swing and DC offset for non-standard chipset inputs, eliminating external bias resistors.
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