crystal oscillator co63_101021_nh25m22wa_e oven-controlled crystal oscillator (ocxo) for fixed communication equipment model name nh25m22wa mobile communication base station exchanger measuring instrument synthesizer high-end router main application supports low power supply voltage.(3.3v) a surface-mount (smd) package. refow soldering is possible. excellent phase noise characteristics. (-125dbc/hz at 1khz) excellent long-term frequency stability.(5010 -9 /year) features phase noise (at 32.768 mhz) offset frequency dbc/hz 1 hz max. ?65 10 hz max. ?95 100 hz max. ?115 1 khz max. ?125 10 khz max. ?140 the value of phase noise changes when the frequency changes. reference value 25.4 15.7 (1.0) 21.5 22 8.9 0.1 7.62 0.1 8.9 0.1 2.5 2.5 #1 #7 #6 #5 #4 #2 #3 tolerance 0.2 mm #1 #2 #3 #4 #5 #6 #7 v cont nc v cc output nc gnd(heating) gnd(case) mm terminal land connections dimensions power supply voltage [v cc ] (v) +5 nominal frequency range (mhz) 10 to 40 for details of options, please feel free to contact our sales representatives. list of options frequency (mhz) ordering code 32.768 nh25m22wa-32.768m-nsa3425a the above frequencies are ndks standard frequencies. frequencies other than the above are available. feel free to contact our sales representatives. list of ordering codes specifcations model item measurement condition nh25m22wa nominal frequency (mhz) 32.768 supply voltage [v cc ] (v) +3.3 5 % power consumption (w) at start max. 3.0 when stable (+25 c) max. 1.3 output voltage hcmos level (v ol max. 0.4 v, v oh min. 2.4 v) symmetry (%) at 1/2 v cc 40 to 60 load impedance (pf) 15 operating temperature range (c) ?10 to +70 storage temperature range (c) ?40 to +85 stabilization time stabilization time (frequency stability) within 50 10 ?9 after power on at +25c , based on frequency after 60minutes operation. 5 minutes long-term frequency stability based on frequency after 30 days operation max. 210 ?9 /day based on frequency after 30 days operation max. 5010 ?9 /year frequency/temperature characteristics ?10 c to +70 c max. 2010 ?9 frequency/voltage coeffcient v cc +3.3 v 5 % max. 310 ?9 frequency control range +1.4 1.4 v min. 0.910 ?6 frequency change polarity positive
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