SIT3542

The Endura™ SiT3542 is a high-frequency, ultra-low jitter, user-programmable oscillator, engineered to deliver high reliability in aerospace and defense applications. This device utilizes SiTime's unique DualMEMS™ temperature sensing and TurboCompensation™ technology to deliver exceptional dynamic performance in harsh environments, making it:

• Resistant to airflow and thermal shock
  
  
• Resistant to mechanical shock and vibration
  
  
• Robust against power supply noise
  
  

The device supports two in-system programming options:
   1) Any-frequency mode to reprogram the clock output to any frequency between 1 MHz to 340 MHz
   2) Digitally controlled oscillator (DCO) mode to steer or pull the clock up to ±3200 ppm

Endura SiT3542 is 100% screened through the SiTime Endura™ process flow to provide high reliability.

In-system programmable from 340.000001 MHz and 725 MHz via I2C/SPI

Digital frequency pulling (DCO) via I2C/SPI

• Output frequency pulling with perfect pull linearity
  
• 13 programmable pull range options to ±3200 ppm
  
• Frequency pull resolution as low as 5 ppt (0.005 ppb)
  

Low acceleration sensitivity

• As low as 0.1 ppb/g
  

Integrated LDO for on-chip power supply noise filtering

• 0.05 ps/mV power supply noise rejection (PSNR)
  
• Reduces BOM by eliminating a LDO
  

Programmable LVPECL, LVDS, or HCSL output

• Programmable LVPECL, LVDS swing
  
• LVDS common mode voltage control
  
• Optimizes signal integrity
  

Superior reliability

• 1 billion hours MTBF
  
• Lifetime Warranty: Reduces repair costs and field failures due to clock components