Crystal Oscillator Model Name NH21M13LA 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. (Compatible with 14-pin Dip) l Excellent rise characteristics. l Excellent phase noise characteristics. l Excellent aging characteristics. l Excellent short-term stability (can be used instead of a TCXO because of its higher precision). n Specifications Model Item Measurement condition Standard nominal frequency (MHz) NH21M13LA 10, 13 Power supply voltage DC +12V Power consumption 2 W max. at start and 1.1 W max. when stable (+25°C) Output level HCMOS (VOL : 0.5V max., VOH : 4.5V min.) Load 15pF Duty Cycle (+2.5V) 45 to 55% Frequency stability Operating temperature range 0 to +70°C ±500×10−9 max. Frequency warm-up characteristic +25°C five minutes after power is on Based on frequency after 30 days operation Aging Based on frequency after 30 days operation ±10×10−9/day max. ±500×10−9/year max. ±100×10−9 max. Frequency / temperature characteristic 0 to +70°C Power supply variation characteristics DC +12V±5% ±50×10−9 max. Frequency control characteristic 0 to +9 V, positive polarity ±6×10−6 min. n Reference Value Offset frequency Phase noise (@13MHz) dBc/Hz 1 Hz −70 max. 10 Hz −100 max. 100 Hz −120 max. 1k Hz −140 max. 10k Hz −140 max. The value of phase noise changes when the frequency changes. n Dimensions n List of Options #1 #7 #8 #14 13max 11max PIN Connections VC GND OUTPUT VCC Power supply voltage DC +3.3V, +5.0V Nominal frequency (MHz) 10 to 38.88 For details of options, please feel free to contact our sales representatives. Terminal number is not printed 19max #1 #7 n List of Ordering Codes 4-φ0.47±0.1 7.62 4.6 4.5min 9.2max 0.8max 21max #8 #14 12.2 15.24 Tolerance ±0.5mm Frequency (MHz) Ordering Code 10 13 NH21M13LA-10M-NSA3416A NH21M13LA-13M-NSA3416A The above frequencies are NDK’ s standard frequencies. Frequencies other than the above are available. Feel free to contact our sales representatives. co37_080418_NH21M13LA_e1