Ultra Series™ Voltage Controlled Crystal Oscillators (VCXO)

Our Ultra Series high performance voltage controlled crystal oscillators (VCXO) use our latest 4th generation DSPLL® technology to provide an ultra-low jitter, low phase noise clock at any output frequency up to 3 GHz.The VCXOs include industry-leading phase jitter of 100 fs typical phase jitter and are available with single, dual, quad and I2C programming options. The devices are factory programmed to any frequency from 0.2 to 3000 MHz with < 1 ppb resolution and maintain exceptionally low jitter for both integer and fractional frequencies across their operating range. The device features on-chip power supply filtering, providing excellent power supply noise rejection and simplifying the task of generating low jitter clocks in noisy systems that use switching power supplies. Ultra-low jitter VCXOs are available in industry standard 3.2x5 mm and 5x7 mm footprints and are factory programmed at time of shipment, eliminating long lead times typically associated with custom VCXOs.

Phase jitter (RMS)
0.100
Frequency range
0.2 kHz - 3.0 GHz

Ultra Series™ VCXO Oscillator Common Specs

  • Ultra-low jitter performance: 100 fs RMS typ
  • Wide frequency range: 200 kHz to 3.0 GHz
  • < 1 ppb frequency resolution
  • Single, dual, quad and I2C configurations available
  • I2C supports Fast Mode Plus, 1Mbps update rate
  • Excellent supply noise immunity: -80 dBc typ
  • User selectable Kv and MinAPR settings
  • 1.5% Kv gain lineairty
  • 20 ppm temperature stability (-40 to +85°C)
  • 3.2x5 mm and 5x7 mm footprints
  • 1.8, 2.5, 3.3 V supply operation from the same part number
  • Supports all formats: LVDS, LVPECL, HCSL, CML, CMOS and Dual CMOS
  • Samples available with 1-2 week lead times
Find the Right Ultra Low Jitter VCXO Device Select Columns
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Part Number Customize Description Phase Jitter (RMS) Frequency Range Package Size (mm) Output Format(s) Stability (+/- ppm) Supply Voltage (V) Temperature Range (°C) Number of Frequencies
Customize Single Freq Ultra Low Jitter VCXO 0.100 0.2 3000 3.2x5; 5x7 LVPECL; LVDS; HCSL; CML; CMOS; DUAL CMOS 20 1.8 - 3.3 -40 85 Single
Customize Dual Freq Ultra Low Jitter VCXO 0.100 0.2 3000 3.2x5; 5x7 LVPECL; LVDS; HCSL; CML; CMOS; DUAL CMOS 20 1.8 - 3.3 -40 85 Dual
Customize Quad Ultra Low Jitter VCXO 0.100 0.2 3000 3.2x5; 5x7 LVPECL; LVDS; HCSL; CML; CMOS; DUAL CMOS 20 1.8 - 3.3 -40 85 Quad
Customize I2C Ultra Low Jitter VCXO 0.100 0.2 3000 3.2x5; 5x7 LVPECL; LVDS; HCSL; CML; CMOS; DUAL CMOS 20 1.8 - 3.3 -40 85 Any (I2C)

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