220 to 725 MHz, Ultra-low Jitter, ±10 to ±50 ppm Differential Oscillator


The Endura™ SiT9347 ultra-low-jitter differential oscillator is engineered for harsh environments and is ideal for high-reliability aerospace and defense applications. This device supports any frequency from 220.000001 to 725 MHz in 1 Hz increments and delivers exceptional dynamic performance of 0.23 ps jitter (typ.) and ±10 ppm in the presence of common environmental stressors, such as shock, vibration, power supply noise, EMI, and board bending.

The SiT9347 is 100% screened through the SiTime Endura process flow to provide high reliability.

The device is available in s small 3.2 x 2.5 mm differential package in addition to a 7.0 x 5.0 mm package and supports all popular output signaling types including LVPECL, LVDS, and HCSL in combination with any voltage between 2.5 to 3.3V.

View related products: 1 to 220 MHz | Ruggedized differential XOs  

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Small industry standard package enables small form-factor system with stringent jitter requirement
"Specs" "Value"
Frequency 220 to 725 MHz
Frequency Stability (ppm) ±10, ±20, ±25, ±50
Operating Temperature Range (°C) -40 to +105
Package Type (mm²) 3.2x2.5, 5.0x3.2, 7.0x5.0
Oscillator Type XO-DE
Phase Jitter (rms) 0.23 ps
Voltage Supply (V) 2.5, 2.8, 3, 3.3
Features Ultra-low acceleration sensitivity, MIL-STD-55310, MIL-PRF-883, Ultra-Low Jitter
Availability Production

Rugged performance under airflow, fast temp. ramp

  • 0.23 ps jitter (typ.)
  • ±10 ppm: Ensures best system performance in hostile environments

Low acceleration sensitivity

  • 0.1 ppb/g

20x better vibration sensitivity

  • Minimizes packet loss in high-vibration environments

0.05 ps/mV power supply noise rejection (PSNR)

  • Simplify power supply design

3.2 x 2.5 mm package

  • Enables small form-factor system with stringent jitter requirement

Flexible programmable features

  • 1 to 220 MHz
  • 2.25 to 3.63 V
  • LVPECL, LVDS, HCSL: Customized oscillator specifications for optimal system performance

Superior reliability

  • 1 billion hours MTBF
  • Lifetime warranty: Reduces field failures due to clock components and associated repair costs
  • Airborne Communications
  • Command & Control
  • Manpack Radios
  • Field Communications
  • UAV Communications
  • Vehicle Communications
  • Airframe Control
  • Flight Computer Platform
  • Satellite Base Station
  • LEO SatCom
  • Ruggedized Applications

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