1 to 220 MHz Ultra-low Jitter Differential VCXO


The SiT3372 is a programmable differential VCXO (voltage controlled oscillator) that supports LVPECL, LVDS and HCSL output types with 27 exceptionally linear APR (absolute pull range) options up to ±3145 ppm. Based on SiTime's unique Elite Platform™, this device delivers exceptional dynamic performance of 0.21 ps jitter (typ.), ±15 ppm, and 0.1% pull range linearity with the same excellent phase noise. Elite products are engineered to maintain these specs in the presence of common environmental hazards, such as shock, vibration, power supply noise, and EMI.

The SiT3372 can be programmed to any combination of frequency, stability, voltage and pull range. This programmability enables designers to optimize clock configuration while eliminating the long lead time and customization costs associated with custom quartz VCXOs.

View related products: 220 to 725 MHz | Ruggedized | I2C/SPI digital controlVCXO lineup

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Small industry standard package enables small form-factor system with stringent jitter requirement
"Specs" "Value"
Frequency 1 to 220 MHz
Frequency Stability (ppm) ±15, ±25, ±30, ±50
Operating Temperature Range (°C) -20 to +70, -40 to +85, -40 to +105
Package Type (mm²) 3.2x2.5, 7.0x5.0, 5.0x3.2
Oscillator Type VCXO-DE
Phase Jitter (rms) 0.21 ps
Pull Range (ppm) ±25, ±50, ±80, ±100, ±150, ±200, ±400, ±800, ±1600, ±3200
Voltage Supply (V) 2.5, 2.8, 3.0, 3.3
Features Ultra-low jitter
Availability Production

Exceptional dynamic performance in real-life operating conditions

  • 0.21 ps jitter (typ.)
  • ±15 ppm
  • 0.1% pull range linearity: Ensures best system performance in hostile environments

Same excellent phase noise under vibration

  • Minimizes link and data loss in high-vibration environments

0.05 ps/mV power supply noise rejection (PSNR)

  • Simplify power supply design

3.0 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 
  • ±25 to ±3200 ppm pull range
  • LVPECL, LVDS, HCSL: Customize oscillator specifications for optimal system performance

Superior reliability

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


  • Cable Model Termination System (CMTS)
  • Telecom Equipment
  • Wireless Base Stations
  • Networked Video Systems & Digitizers
  • Jitter Cleaners
  • Instrumentation
  • Networked Audio Systems
  • FPGA Data Recovery

Evaluation Boards (Contact SiTime) – SiT6097 (3225) | SiT6085 (7050)

Frequency Slope (dF/dT) Calculator – Calculate frequency slope over temperature

Reliability Calculator – Get FIT/MTBF data for various operating conditions

Jitter Calculator and Plots – Convert phase noise to phase jitter, find phase noise plots

3225 6-Pins | 5032 6-Pins with CP | 7050 6-Pins with CP – Preview packages with QFN 3D step models

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