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VS-550 Voltage Controlled Saw Oscillator (VCSO)
The VS-550 is a SAW based voltage controlled oscillator that operates at the fundamental frequencies of the internal SAW filters. These SAW filters are high-Q quartz devices that enable the circuit to achieve low phase jitter performance over a wide operating temperature range. The dual oscillator is housed in a hermetically sealed J-lead surface mount package offered on tape and reel. It has a frequency select function that enables either "Frequency 1" or "Frequency 2."


  • 9 x 14 x 3.5 mm Package
  • Output Frequencies from 500 MHz to 850 MHz
  • 3.3 V Operation
  • Low Jitter < 0.25 ps-rms across 50 kHz to 80 MHz
  • LVPECL Configuration with Fast Transition Times
  • Complementary Outputs
  • Frequency Select Feature


  • 10G Fibre Channel
  • 10GbE LAN/WAN
  • OC-192
  • INCITS 364-2003
  • IEEE 802.3ae
  • ITU-T G.709
  • GR-253-CORE Issue 3