Vibration Resistant, Programmable VCXO

Vibration Resistant, Programmable VCXO

 

 

SiTime MEMS VCXOs provide exceptional dynamic perforamnce and the highest reliability for video distribution (CMTS), networking, telecom and instrumentation applications. These devices are engineered to maintain the same phase noise and freqeuncy tuning accuracies in the presence of common environmental harzards such as shock, vibration, noisy power suply, EMI and board bending. They enable equipment such as cable headend and remote radio head (RRH) to deliver the highest performance, best reliability and the highest quality of service in uncontrolled environments including unairconditined basements, rooftops, curbside and on electrical poles.
Both SiT33xx and SiT38xx VCXOs are based on SiTime’s unique MEMS timing technology that delivers 30x better reliability than legacy quartz devices. They are 100% drop-in replacements for legacy quartz VCXOs and can be used in existing designs without any schematic or layout changes.
Key features:

  • Any frequency from 1 MHz to 700 MHz in 1 Hz step
  • ±10 ppm, best dynamic stability, resistant to board bending
  • Heat resistant, up to +95°C for fan-less equipment
  • Excellent phase noise under vibration, minimizing link and data loss in high vibraiton environments
  • 0.02 ps/mV power supply noise rejection (PSNR), lowering power supply requirements
  • Best pull range linearity (0.1%), 50x better than quartz
  • Widest pull range from from ±25  to ±3200 ppm
  • 30x better reliability, life time warranty
Device Frequency (MHz) Temp Range (°C) APR* (±PPM) Voltage (V) Package Size (mm) Datasheet
SiT3372¹ 10 to 220 -20 to +70,
-40 to +85
±10, ±25, ±50 2.5 to 3.3 3.2×2.5,7.0x5.0 pdf-datasheet
SiT3373¹ 220 to 700 -20 to +70,
-40 to +85
±10, ±25, ±50 2.5 to 3.3 3.2×2.5,7.0x5.0 pdf-datasheet
SiT3807 30 Standard Frequencies 3807-freq -20 to +70,
-40 to +85
±20 to ±175 1.8,
2.5 to 3.3
2.5×2.0, 3.2×2.5,
5.0×3.2, 7.0×5.0
pdf-datasheet
SiT3808 1 to 80 -20 to +70,
-40 to +85
±10 to ±1585 1.8,
2.5 to 3.3
2.5×2.0, 3.2×2.5,
5.0×3.2, 7.0×5.0
pdf-datasheet
SiT3809 80.000001 to 220 -20 to +70,
-40 to +85
±10 to ±1585 1.8,
2.5 to 3.3
2.5×2.0, 3.2×2.5,
5.0×3.2, 7.0×5.0
pdf-datasheet

 

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