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| Crystal Oscillator Model Name NH25M22WC www..com Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment n Main Application l Mobile communication base station l Measuring instrument l Synthesizer l Exchanger l High-end router n Features l Compact, with a low height. l A surface-mount (SMD) package. l Reflow soldering is possible. l Excellent phase noise characteristics. l Excellent aging characteristics. n Specifications Measurement condition Standard nominal frequency (MHz) Power supply voltage Power consumption Output level Load Duty Cycle (1/2Vcc) Operating temperature range Frequency stability Frequency warm-up characteristic +25C five minutes after power is on Aging Based on frequency after 30 days operation Based on frequency after 30 days operation Frequency / temperature characteristic -10 to +70C Power supply variation characteristics DC +5V5% Frequency control characteristic 0 to +5 V, positive polarity Item Model NH25M22WC 10 DC +5V 3 W max. at the start and 2 W max. when stable (+25C) HCMOS (VOL : 0.5V max., VOH : 4.5V min.) 15pF 40 to 60% -10 to +70C 200x10-9 max. 2x10-9/day max. 100x10-9/year max. 20x10-9 max. 10x10-9 max. 1.0x10-6 min. n Reference Value Offset frequency 1 Hz 10 Hz 100 Hz 1k Hz 10k Hz dBc/Hz -70 max. -100 max. -120 max. -135 max. -135 max. Phase noise (@10MHz) The value of phase noise changes when the frequency changes. n Dimensions 17.80.1 7.60.1 PIN Connections #1 #2 #3 #4 #5 #6 #7 VCONT NC VCC OUTPUT NC NC GND n List of Options Power supply voltage Nominal frequency (MHz) DC +3.3V 10 to 20 25.40.2 For details of options, please feel free to contact our sales representatives. 2.5 #1 22.00.2 #2 #3 2.5 n List of Ordering Codes Frequency (MHz) 10 Ordering Code NH25M22WC-10M-NSA3419A 7.80.2 #7 #6 #5 #4 Tolerance 0.2mm The above frequencies are NDK' s standard frequencies. Frequencies other than the above are available. Feel free to contact our sales representatives. co46_080418_NH25M22WC_e1 |
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