SiTime, Silicon MEMS Oscillators and Clock Generators

SiT3821: High Performance Differential MEMS VCXO (1 to 220 MHz)

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Differential Oscillator Package

The SiT3821 is a highly flexible, ultra performance, Voltage Controlled Differential Oscillator (VCXO) that supports LVPECL and LVDS output signaling types with up to ±1600 PPM extremely linear pull range. This differential VCXO is available in any frequency between 1 to 220 MHz, with best-in-class RMS phase jitter of <0.5 ps over 12 KHz to 20 MHz integration bandwidth. Unlike quartz or SAW based traditional VCXOs, the SiT3821 is available in any combination of voltage (2.5V or 3.3V), frequency stability (±10, ±25 or ±50 PPM) and package (5032 or 7050) options.

 

 

Frequency Range (MHz) 1 to 220
Frequency Stability (PPM) ±10, ±25, ±50
RMS Integrated Phase Jitter (12kHz - 20MHz) <0.5 ps
Nominal Pull Range (PPM) ±25, ±50, ±100, ±150, ±200, ±400, ±800, ±1600
Pull Range Linearity < 1%
Temp Range (°C) -20 to +70, -40 to +85
Supply Voltage (V) 2.5 and 3.3
Package LxWxH (mm) 5.0 x 3.2 x 0.75, 7.0 x 5.0 x 0.9
Status Production
Applications
  • SONET
  • Telecom equipment
  • Wireless basestation
  • Networked video systems and digitizers
  • Jitter cleaner
  • Instrumentation
  • Networked audio systems
  • FPGA data recovery

Features Benefits
  • Extensive programmability
    • Frequency from 1 MHz to 220 MHz
    • LVPECL and LVDS output signaling types
    • Frequency stability from ±10 PPM to ±50 PPM
    • Pull range from ±25 PPM to ±1600 PPM
  • Customized specification for optimal system performance
  • Readily available with any combination of device specifications within the operating range
  • Superior tuning slope consistency
  • Tighter PLL bandwidth and simpler system design
  • Option of two industry standard packages
  • 100% drop in replacement for quartz, SAW and overtone oscillators without any design changes
  • 3-5 weeks lead time
    • Any frequency
    • Any voltage
    • Any package
  • Reduce inventory overhead
  • Mitigate shortage risks

 
3821-order

 

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