NH37M28LA

Crystal Oscillator Model Name NH37M28LA n Main Application l Mobile communication base station l Measuring instrument l Synthesizer l Exchanger l High-end router Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment n Features l Compact. l Excellent rise characteristics. 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 +25°C five minutes after power is on Aging Based on frequency after 72 hours operation Based on frequency after 72 hours operation Frequency / temperature characteristic −10 to +70°C Power supply variation characteristics DC +5V±5% Frequency control characteristic 0 to +4 V, positive polarity Item Model NH37M28LA 10 DC +5V 3 W max. at the start and 1.3 W max. when stable (+25°C) HCMOS (VOL : 0.5V max., VOH : 4.5V min.) 15pF 40 to 60% −10 to +70°C ±50×10−9 max. ±2×10−9/day max. ±50×10−9/year max. ±10×10−9 max. ±3×10−9 max. ±1×10−6 min. n Reference Value Offset frequency 1 Hz 10 Hz 100 Hz 1k Hz 10k Hz dBc/Hz −85 max. −120 max. −140 max. −145 max. −150 max. Phase noise (@10MHz) The value of phase noise changes when the frequency changes. n Dimensions 36 33.1 PIN Connections #1 #2 #3 #4 #5 VCONT VREF VCC OUTPUT GND n List of Options Operating temperature range Power supply voltage Nominal frequency (MHz) −40 to +70°C DC +3.3V 10 to 40 For details of options, please feel free to contact our sales representatives. 24.0 27.0 Terminal number is not printed #3 0.65±0.3 19max #2 STAND OFF (4 POINT) #4 17.8±0.3 15.24±0.3 n List of Ordering Codes Frequency (MHz) 10 Ordering Code NH37M28LA-10M-NSA3427A 4.5min 5-φ0.8 #1 #5 17.78±0.3 25.4±0.3 Tolerance ±0.5mm The above frequencies are NDK’ s standard frequencies. Frequencies other than the above are available. Feel free to contact our sales representatives. co39_080418_NH37M28LA_e1