SCOCXOVT ultra tight stability oven controlled crystal oscillator 5 v power supply up to 20 mhz date : september 2005 revision no. : 3 revision date : 10-06 page 1/2 in accordance with our policy of continuous develop ment 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 over: operating temp. range : see note 1 long term aging 1st year: < 0.3 ppm * 10 years: < 2.5 ppm * supply voltage 0.2 v < 0.1 ppm (on request, < 0.025 ppm) load 10%: < 0.01 ppm power supply supply input: vcc = 5 v 0.2 v * input current : < 70 ma @ +30 c * < 110 ma @ -20 c * frequency control range control voltage: see note 2 frequency deviation: > 2.5 ppm * response slope: positive output output signal: hc-mos compatible symmetry: 40 (min.) /60 (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 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 60s @ 30c * current: < 250 ma during 10s miscellaneous short term stability: < 1 e-10 0.1 s to 30 s < 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 SCOCXOVT-ar1, av5 temp. range * 0 to +60 c stability * 0.025 ppm (0.05 ppm peak to peak) SCOCXOVT-br1, bv5 temp. range * -20 to +70 c stability * 0.05 ppm (0.1 ppm peak to peak) SCOCXOVT-cr1, cv5 temp. range * -40 to +85 c stability * 0.1 ppm (0.2 ppm peak to peak) note 2 SCOCXOVT- ar1, br1, cr1 adjustment with resistor 0 to 10 k (connected to ground) input impedance > -4.7 k SCOCXOVT- av5, bv5, cv5 adjustment with voltage 0.5 to 5 v input impedance > 47 k marking example SCOCXOVT-bv5 type spec no. 20.000 mhz 01.25 frequency date code 12 (pin 1) piece no. ordering information example v t oscillator type x x x n of customer spec. scocxo = low g sensitivity oven controlled crystal oscillator frequency adjustment v 5 - b temperature range a = 0 to +60c; +/-0.025ppm b = -20 to +70c: +/-0.05ppm c = -40 to +85c; +/-0.1ppm x = custom spec. r1 = external resistor v5 = voltage 5v y = custom spec. o c o x 20 mhz oscillator output frequency oscillator version v = low power voltage 5v t = tight tolerance c s standard frequencies (mhz) 10.0000 12.8000 16.0000 16.3840 19.4400 20.0000
SCOCXOVT ultra tight stability oven controlled crystal oscillator 5 v power supply tight stability up to 20 mhz date : september 2005 revision no. : 3 revision date : 10-06 page 2/2 in accordance with our policy of continuous develop ment 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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