CX2119A Low phase noise Crystal Oscillators

Low phase noise Crystal Oscillators

The CX2119A is a low-phase-noise, 10MHz oven-controlled crystal oscillator housed in a standard 36×27mm package. It operates stably in environments ranging from –20°C to +70°C, has an aging rate better than 5E-10/day, and offers excellent near-end and far-end phase noise performance. This product is ideal for use in low-phase-noise phase-locked loop (PLL) local oscillator circuits. When connected to an atomic clock, it significantly improves the system's short-term frequency stability and phase noise performance, while effectively suppressing and eliminating clutter interference from the atomic clock.

CX2119A Low phase noise Crystal Oscillators

Important Features

  • Near-end phase noise down to -110dBc/Hz@1Hz
  • Frequency stability ADEV up to 1E-12 /1s
  • +12VDC power supply
  • Standard 36mm×27mm Package
CX2119A Datasheet

Important Features

Test ItemConditionTechnical IndicatorsTechnical Indicators
Output frequency10MHz or 10.23MHz
Output frequency 1sNominal valueTypical value
≤ 3×10?121×10?12
Phase noise dBc/HzNominal valueTypical value
1Hz*≤ -100-110
10Hz≤ -130-137
100Hz≤ -150-155
1kHz≤ -157-161
10kHz≤ -160-165
100kHz≤ -160-165
Aging rate (Measured after 30day of continuous aging）1month≤ 5×10⁻⁹
The first year≤ 5×10⁻⁸
Ten years≤ 2.5×10⁻⁷
1 day≤ 5×10⁻¹⁰
Frequency controlPressure control voltage range0~5V，Positive slope
Frequency regulation range≥ ±4×10⁻⁷
Temperature frequency characteristics≤ ±3×10⁻⁸
Voltage frequency characteristics≤ ±5×10⁻⁹
Load frequency characteristics≤ ±5×10⁻⁹
Wave shapeSine wave
Output power≥ 7dBm
Harmonic≤ -30dBc
Clutter≤ -70dBc
Starting time≤ 5min（+25℃ Atmosphere，±1×10⁻⁶）
Working temperature-20°C ~ +70°C
Storage temperature-40℃ ~ +85℃
power supply+12VDC
Electric current≤ 0.5A
External Dimension36mm×27mm×16mm

Typical phase noise

Frequency stability typical value

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