SiT3809

80 to 220 MHz, ±10 to ±50 ppm VCXO

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The SiT3809 is a highly flexible high-frequency MEMS voltage-controlled oscillator (VCXO) with LVCMOS output. This device supports any combination of frequencies (80.000001 to 220 MHz), voltage (1.8 V; 2.5 V to 3.3 V), pull range (±25 ppm to ±1600 ppm) and package (2520, 3225, 5032, 7050). It provides superior pull range linearity and tuning slope consistency (Kv), 10 times better than quartz VCXOs, which results in a simpler PLL and clock synchronization design. The SiT3809 is 100% compatible with legacy quartz devices in footprint and control voltage and therefore replaces crystal VCXO oscillators without any design changes.

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Four industry standard footprints for drop-in replacement of quartz VCXOs without any board changes
"Specs" "Value"
Frequency 80 to 220 MHz
Frequency Stability (ppm) ±25, ±50
Operating Temperature Range (°C) -20 to +70, -40 to +85
Package Type (mm²) 2.5x2.0, 3.2x2.5, 5.0x3.2, 7.0x5.0
Oscillator Type VCXO-SE
Phase Jitter (rms) 0.5 ps
Pull Range (ppm) ±25, ±50, ±80, ±100, ±150, ±200
FlexEdgeTM Rise/Fall Time Yes
Voltage Supply (V) 1.8, 2.5, 2.8, 3.3
Features Low Jitter, Field Programmable
Availability Production
  • Image: SiT3809 4-pin package, top & bottom
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    Image: SiT3809 4-pin package, top & bottom

Extensive programmability

  • Frequency from 80 MHz to 220 MHz
  • Supply voltage of 1.8 V; 2.5 V to 3.3 V
  • Frequency stability from ±10 ppm to ±50 ppm
  • Pull range from ±25 ppm to ±1600 ppm:
  • Customized specification for optimal system performance
  • Readily available products in any specification within the operating range

<1% pull range linearity

  • Simpler loop control in software controlled system PLL
  • More consistent PLL bandwidth over operating range
  • Faster calibration and lock time
  • Reduction of modulation harmonics

Superior tuning slope consistency

  • Tighter PLL bandwidth and simpler system design

Four industry-standard packages

  • 100% drop-in replacement for quartz VCXO without any design changes

4 to 6 weeks lead time

  • Reduce inventory overhead
  • Mitigate shortage risks

 

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Evaluation Boards (Contact SiTime) – SiT6081 (2520) | SiT6082 (3225) | SiT6083 (5032) | SiT6084 (7050)

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

Time Machine II Programmer – Program frequency, voltage, stability & more

QFN 2724 4-Pins | QFN 3225 4-Pins | QFN 5032 6-Pins | QFN 7050 6-Pins – Preview packages with QFN 3D step models

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