Aerospace-Defense

Engineered for the world’s toughest applications

Timing devices provide the heartbeat in mission-critical electronic equipment. These devices must reliably operate in the harshest environments.

If timing fails…

  • Receivers lose lock to satellites
  • Navigation systems can receive the wrong coordinates
  • The mission can be compromised

Our ultra-rugged Endura™ MEMS timing solutions, with up to 50 times better acceleration sensitivity, provide the robustness and reliability needed to operate in the most rugged conditions. Endura products conform to MIL-PRF-55310 specifications and can be up-screened in accordance with standard or custom flows.

Best shock and vibration immunity
0.004 ppb/g (typ) acceleration sensitivity
30,000g shock and 70g vibration
Built for MIL spec
Compliant with MIL-PRF-55310
<1 DPPM FIT (failures in time)
Best dynamic performance
Frequency slope (ΔF/ΔT): 0.9 ppb/°C
ADEV: 1.5e-11, 10s averaging time
PSNR: 0.2 ps/mV

Applications

Aerospace

Better shock and vibration resistance

Featured Parts: SiT5146, SiT5346, SiT9346
Avionics

Lowest acceleration sensitivity

Featured Parts: SiT5346, SiT8944, SiT3342
Field communications

Wide temperature range

Featured Parts: SiT5347, SiT5349, SiT8945, SiT2045, SiT3541
GNSS/navigation

Maintains satellite lock under harsh conditions

Featured Parts: SiT5346, SiT5347, SiT5348, SiT5359, SiT5146, SiT5147
Satcom

Lowest acceleration sensitivity

Featured Parts: SiT5346, SiT5347, SiT5348, SiT5359, SiT5146, SiT5147
Vehicle comms/telemetry

Best frequency slope (ΔF/ΔT) over all conditions

Featured Parts: SiT5147, SiT5347SiT8945, SiT9045, SiT2045
Land mobile radio

Wide temperature range, better shock and vibration immunity

Featured Parts: SiT5147, SiT3342SiT5349, SiT5347
Airframe control

Low acceleration sensitivity, wide temp range

Featured Parts: SiT5346, SiT9346, SiT3541

Features & Benefits

endura packages

Endura Timing Solutions

Lowest acceleration sensitivity

Highest mechanical shock and vibration resistance

Superior dynamic performance under airflow, thermal gradients, pressure, power supply noise

Standard or custom up-screening flows

Endura Super-TCXOs

  • High temperature operation | ±100 ppb up to 105°C
  • Airflow and thermal shock resistant  | 1 ppb/°C
  • Best acceleration sensitivity | 0.004 ppb/g 
     

Endura Single Ended Oscillators

  • Vibration resistant | 0.1 ppb/g 
  • Wide operating temperature | -55 to +125°C
  • Small industry-standard packages | as small as 2.0 mm x 1.6 mm
     

Endura Spread Spectrum Oscillators

  • Electromagnetic interference (EMI) reduction | up to 30 dB
  • Vibration resistant | 0.1 ppb/g 
  • Wide operating temperature | -55 to +125°C
  • Small industry-standard packages | as small as 2.0 mm x 1.6 mm
     

Endura Differential Oscillators

  • Low jitter | 0.2 ps RMS (12k to 20MHz)
  • Precise frequency steering | digital tuning to ±5 ppt
  • Vibration resistant | 0.1 ppb/g 
  • Industry-standard packages | as small as 3.2 mm x 2.5 mm

Endura DCXOs (digitally controlled oscillators)

  • Immune to analog noise | in-system programmable via I2C
  • Wide pull range | up to ±3200 ppm
  • Precise frequency steering | digital tuning to ±5 ppt
  • Best pull range linearity | <1%
  • Low jitter | 0.2 ps RMS (12k to 20MHz)
     

Endura VCXOs (voltage controlled oscillators)

  • Wide pull range | ±25  to ±3200 ppm
  • Low jitter | 0.2 ps RMS (12k to 20MHz)
  • Best pull range linearity | <1%
  • Low power supply noise rejection (PSNR) | 0.05 ps/mV

Related Resources

Product Briefs

MEMS Timing for High Reliability Applications

Fact Sheets

SiTime Fact Sheet