Crystal Oscillator Model Name NH26M26LB 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. l Excellent rise characteristics. l Excellent phase noise characteristics. l Excellent aging characteristics. n Specifications Model Item Measurement condition Standard nominal frequency (MHz) NH26M26LB 10 Power supply voltage DC +5V Power consumption 3 W max. at the start and 1.3 W max. when stable (+25°C) Output level HCMOS (VOL : 0.5V max., VOH : 4.5V min.) Load 15pF Frequency stability Duty Cycle (1/2Vcc) 40 to 60% Operating temperature range −10 to +70°C Frequency warm-up characteristic +25°C three minutes after power is on ±50×10−9 max. Aging Based on frequency after 72 hours operation ±2×10−9/day max. Based on frequency after 72 hours operation ±100×10−9/year max. Frequency / temperature characteristic −10 to +70°C ±10×10−9 max. Power supply variation characteristics DC +5V±5% ±5×10−9 max. Frequency control characteristic 0 to +5 V, positive polarity ±1×10−6 min. n Reference Value Offset frequency Phase noise (@10MHz) dBc/Hz 1 Hz −80 max. 10 Hz −120 max. 100 Hz −140 max. 1k Hz −145 max. 10k Hz −150 max. The value of phase noise changes when the frequency changes. n List of Options n Dimensions Operating temperature range PIN Connections 26max #1 #2 #3 #4 #5 OUTPUT GND VCONT NC VCC Power supply voltage #5 5-φ0.8±0.1 #3 11.5±0.3 4POINT 10 to 20 For details of options, please feel free to contact our sales representatives. n List of Ordering Codes 19.05±0.3 13.67max STAND OFF (GRASS) 2±0.5 0.65±0.5 26max #2 DC +3.3V Nominal frequency (MHz) Terminal number is not printed #1 −40 to +70°C 11.5±0.3 #4 19.05±0.3 Tolerance ±0.5mm Frequency (MHz) Ordering Code 10 NH26M26LB-10M-NSA3426A The above frequencies are NDK’ s standard frequencies. Frequencies other than the above are available. Feel free to contact our sales representatives. co42_080418_NH26M26LB_e1