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  • 2 - Phase noise (at 10 MHz) Offset frequency dBc/Hz

1 Hz –75

10 Hz –100

100 Hz –125

1 kHz –150 10 kHz –160 The value of phase noise changes when the frequency changes. 13A_1227_NH14M09TA_j High Precision Oscillator (Twin-OCXO) for Fixed Communication EquipmentModel Name NH14M09TA

  • Base stations for system mobile communications ● Optical transmission system
  • Measuring instrument ● Synthesizer ● Exchanger ● High-end router ■ Main Application
  • Compact and excellent temperature characteristics.
  • Excellent long-term frequency stability.
  • Excellent phase noise characteristics.
  • Hermetic sealing package for excellent environmental-proof performance.
  • Supports wide temperature range (–40 to +85 °C) ■ Features mm Land pattern (Typical) 2.54 2.54 1.25 3.003.00 2. 252. 25 14.3±0.3 Filled with underfill (Not metallized) #1 #2 #3 2.54±0.1 2.54±0.1 1.0±0.1 Terminal land connections V cont GND NC* #6 V CC OUTPUT NC* *Please don’t connec t ■ Dimensions ■ Specifications Model Item Measurement condition NH14M09TA Nominal frequency range (MHz) 5 to 40 Supply voltage [VCC] (V) +3.3 ±5 % Power consumption (W) at start Typ. 1.3 (Max. 2.0) when stable (+25 °C) Typ. 0.6 (Max. 1.0) Output voltage LVCMOS (VOL Max. 0.3 V, VOH Min. 3 V) Symmetry (%) at 1/2 VCC 45 to 55 Load impedance (pF) 15 Operating temperature range (°C) Refer to *1 Storage temperature range (°C) –40 to +85 Stabilization time Stabilization Time (Frequency Stability) within ±100 ×10−9 after power on at +25°C , based on frequency after 60minutes operation. Max. 3 minutes Long-term frequency stability Based on frequency after 30 days operation Max. ±5×10–9/day Based on frequency after 30 days operation Max. ±500×10–9/year Frequency/Temperature characteristics Refer to *1 Frequency/Voltage coefficient VCC +3.3 V ±5 % Typ. ±5×10–9 (Max. ±10×10–9) Frequency change polarity Frequency change polarity Positive Linearity Typ. 1% ■ Reference Value ■ *1 List of Options Operating temperature range (°C) –40 to +85 Frequency/temperature characteristics Max. ±10×10–9 Operating temperature range (°C) –20 to +70 Frequency/temperature characteristics Max. ±10×10–9 Please specify a NDK's nominal frequency in the square brackets. (Example 10MHz : Please specify 10M in the square brackets.) Frequencies other than the above are available. Feel free to contact our sales representatives.