Crystal Oscillator Model Name NH26M26LA Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment n Main Application l Mobile communication base station l Exchanger l Measuring instrument l High-end router l Synthesizer n Features l Compact, with a low height. l Excellent rise characteristics. l Excellent phase noise characteristics. l Excellent aging characteristics. n Specifications Model Item Measurement condition Standard nominal frequency (MHz) NH26M26LA 10 Power supply voltage DC +3.3V Power consumption 2.5 W max. at the start and 1.3 W max. when stable (+25°C) Frequency stability Output level HCMOS (VOL : 0.4V max., VOH : 2.4V min.) Load 1kΩ//5pF Duty Cycle (1/2Vcc) 40 to 60% Operating temperature range 0 to +70°C ±500×10−9 max. Frequency warm-up characteristic +25°C five minutes after power is on Aging Based on frequency after 72 hours operation ±10×10−9/day max. Based on frequency after 72 hours operation ±500×10−9/year max. Frequency / temperature characteristic 0 to +70°C ±100×10−9 max. Power supply variation characteristics DC +3.3V±5% ±20×10−9 max. Frequency control characteristic 0 to +2.8V ±2.0×10−6 min. n Reference Value Offset frequency dBc/Hz 1 Hz Phase noise (@10MHz) −65 max. 10 Hz −95 max. 100 Hz −120 max. 1k Hz −125 max. 10k Hz −130 max. The value of phase noise changes when the frequency changes. n Dimensions n List of Options Power supply voltage PIN Connections 26max #1 #2 #3 #4 #5 #1 #2 OUTPUT GND VCONT NC VCC DC +5.0V Nominal frequency (MHz) 10 to 20 For details of options, please feel free to contact our sales representatives. Terminal number is not printed #3 11max 4POINT 5min 4.5min 5-Φ0.5±0.1 12.1 STAND OFF (GRASS) #5 18.4 19.05 n List of Ordering Codes 26max #4 19.05 Frequency (MHz) Ordering Code 10 NH26M26LA-10M-NSA3424A The above frequencies are NDK’ s standard frequencies. Frequencies other than the above are available. Feel free to contact our sales representatives. Tolerance ±0.5mm co41_080418_NH26M26LA_e1