Crystal Oscillator Model Name NH26M26LC Oven Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment ■ Main Application ● Base stations for Mobile communication system ● Measuring instrument ● Exchanger ● Synthesizer ● High-end router ■ Features ● Compact, with a low height. ● Excellent rise characteristics. ● Excellent phase noise characteristics. (10MHz : -151dBc/Hz at 1kHz) ● Excellent long-term frequency stability.(±50×10-9/year) ■ Specifications Model Item Measurement condition Nominal frequency (MHz) NH26M26LC 10 Supply voltage [VCC] (V) +5 ±5 % at start Power consumption (W) Max. 3 when stable (+25 °C) Max. 1.3 HCMOS level (VOL Max. 0.5 V, VOH Min. 4.5 V) Output voltage Symmetry (%) 40 to 60 at 1/2 VCC Load impedance (pF) 15 Operating temperature range (°C) −20 to +70 Storage temperature range (°C) Stabilization time Long-term frequency stability −40 to +85 Stabilization Time (Frequency Stability) within ±50 ×10−9 after power on at +25°C , based on frequency after 60minutes operation. Max. 3 minutes Based on frequency after 72 hours operation Max. ±2×10−9/day Based on frequency after 72 hours operation Max. ±50×10−9/year Frequency/Temperature characteristics −20 to +70 °C Max. ±10×10−9 Frequency/Voltage coefficient VCC +5 V ± 5 % Max. ±3×10−9 Frequency control range Vcont +2 ± 2 V Min. ±1×10−6 Frequency change polarity Positive ■ Reference Value Phase noise (at 10 MHz) Offset frequency dBc/Hz 1 Hz Typ. −100 10 Hz Typ. −125 100 Hz Typ. −142 1 kHz Typ. −151 10 kHz Typ. −155 The value of phase noise changes when the frequency changes. ■ Dimensions ■ List of Ordering Codes mm 26 max Pin connections #5 19.05 11.5 0.65±0.15 GND #3 Vcont #4 NC #5 VCC NH26M26LC-10M-NSA3539A The above frequencies are NDK’s standard frequencies. Frequencies other than the above are available. Feel free to contact our sales representatives. Terminal number is not printed. 5 - Ø0.8 ± 0.1 #3 11.5 #2 OUTPUT #2 Ordering Code 19.05 #1 STAND OFF (GLASS) 4POINT 12.5 max 6.2±0.5 26 max #1 Nominal frequency (MHz) 10 #4 Tolerance ±0.3 mm -4- 1410B_NH26M26LC_e