OCXOWST oven controlled crystal oscillator hc-mos output 3.3 v power supply stratum 3 up to 20 mhz date: june 2003 revision no.: 2 page 1/2 in accordance with our policy of continuous develo pment and improvement, we reserve the right to modify the design or the sp ecifications of our products without prior notice. headquarters: micro crystal div. of eta sa mhlestrasse 14 ch-2540 grenchen switzerland tel. fax internet email +41 32 655 82 82 +41 32 655 80 90 www.microcrystal.ch sales@microcrystal.ch frequency stability frequency stability overall included long term aging 15 years: < 4.6 ppm holdover stability during 24 hours including load, supply voltage and tem- perature variation: < 0.28 ppm (0.56 ppm p-to-p) power supply supply input: vcc = 3.3 v 0.2 v * input current : < 110 ma @ +30 c * input current : < 160 ma @ -20 c * frequency control range control voltage: not applicable, pin 1 must be connected to ground (see note 2) internal calibration: < 1 ppm * output output signal: hc-mos compatible symmetry: 45 (min.) /55 (max.) % @ vcc / 2 * rise and fall time: tr < 7ns tf < 7 ns * level ?0? and ?1?: < 0.4 v > vcc ?0.5 v fan out (load): 10 ls or 47pf max. environment operable temp. range: -40 to +85 c storage temp. range: -65 to +125 c vibration: 10 to 2000 hz / 10 g shock: 2000 g, 0.3 ms, ? sine package: dil 14, 4 pins, gnd to case package height: 8 mm (see packaging info) warm-up ? ?? ? f/f: within spec after 30s @ 0c * current: < 250 ma during 30s miscellaneous short term stability: < 5 e-10 0.1 s to 30 s typical 5 e-11 @ 1 s phase noise (bw = 1hz): (typical, @ 10mhz in static conditions) 1 hz : - 70 dbc / hz 10 hz : -100 dbc / hz 100 hz : -130 dbc / hz 1 khz : -140 dbc / hz * customer?s specification on request note 1 OCXOWST-d temp. range * 0 to +70 c OCXOWST-c temp. range * -40 to +85 c note 2 on request: possibility of frequency adjustment with control voltage. marking example OCXOWST-c type spec no. 12.800 mhz 01.25 frequency date code 12 (pin 1) piece no. ordering information example w s t oscillator type x x x n of customer spec. ocxo = oven controlled crystal oscillator - c temperature range c = -40 to +85c d = 0 to +70c o c o x 12.8 mhz oscillator output frequency oscillator version w = low power voltage 3.3v st = stratum 3 application standard frequencies (mhz) 12.8000 16.3840 19.4400 20.0000
OCXOWST oven controlled crystal oscillator hc-mos output 3.3 v power supply stratum 3 up to 20 mhz date: june 2003 revision no.: 1 page 2/2 in accordance with our policy of continuous develo pment and improvement, we reserve the right to modify the design or the sp ecifications of our products without prior notice. headquarters: micro crystal div. of eta sa mhlestrasse 14 ch-2540 grenchen switzerland tel. fax internet email +41 32 655 82 82 +41 32 655 80 90 www.microcrystal.ch sales@microcrystal.ch application and test circuit : adjustment with voltage v a 14 1 7 8 vcc cd1 oscilloscope or counter c load 15pf * d1 d2 d3 d4 vcc r load 2k vc v hc-mos ttl cd2 adjustment with resistor v a 14 1 7 8 vcc cd1 oscilloscope or counter c load 15pf * d1 d2 d3 d4 vcc r load 2k hc-mos ttl cd2 radj (0?10kohms ) low thermal coefficient waveform output : waveshape ttl gnd vcc 2.4v min. 1.4v 0.4v max. tf tr t1 t2 waveshape hc-mos gnd vcc vcc - 0.5v min. (except 12v: 5v-0.5v min.) 1/2 vcc gnd + 0.4v max. tf tr t1 t2 [ ] % 2 1 1 100 t t t cycle duty + =
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