crystal oscillator co62_101021_nh20m20la_e oven-controlled crystal oscillator (ocxo) for fixed communication equipment model name nh20m20la mobile communication base station exchanger measuring instrument synthesizer high-end router main application compact, with a low height. excellent rise characteristics. excellent phase noise characteristics. (38.88mhz : -135dbc/hz at 1khz) features phase noise (at 38.88 mhz) offset frequency dbc/hz 1 hz max. ?60 10 hz max. ?90 100 hz max. ?115 1 khz max. ?135 10 khz max. ?145 the value of phase noise changes when the frequency changes. reference value pin connections terminal number is not printed #1 #2 #3 #4 #5 v cc output gnd v cont nc mm tolerance 0.5 mm 21.5max 21.5max 15.24 7.62 15.24 7.62 #1 #3 #2 #4 stand of f (glass) 4point #5 10.5max 5 - 0.45 0.1 5 0.3 +0.2 ?0 dimensions operating temperature range (c) ?30 to +70 power supply voltage [v cc ] (v) +3.3 nominal frequency range (mhz) 10 to 38.88 for details of options, please feel free to contact our sales representatives. list of options frequency (mhz) ordering code 10 nh20m20la-10m-nsa3421a 38.88 nh20m20la-38.88m-nsa3421a 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 nh20m20la nominal frequency (mhz) 10, 38.88 supply voltage [v cc ] (v) +5 5 % power consumption (w) at start max. 3 when stable (+25 c) max. 1.5 output voltage hcmos level (v ol max. 0.5 v, v oh min. 4.5 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 500 10 ?9 after power on at +25c , based on frequency after 60minutes operation. 3 minutes long-term frequency stability based on frequency after 30 days operation max. 1010 ?9 /day based on frequency after 30 days operation max. 50010 ?9 /year frequency/temperature characteristics ?10 c to +70 c max. 20010 ?9 frequency/voltage coeffcient v cc +5 v 5 % max. 5010 ?9 frequency control range +2.5 2.5 v min. 510 ?6 frequency change polarity positive
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