surface mount spxos surface mount spxos cfps-31 issue 2; 28 july 2005 delivery options please contact our sales office for current leadtimes description the cfps-31 is a 1.8v low voltage, surface mount oscillator with a cmos output output compatibility tri-state cmos drive capability 15pf max package outline 7.5 x 5.0mm smd ceramic package frequency range 1.8 to 160.0mhz frequency stabilities 25ppm, 50ppm, 100ppm (inclusive of supply voltage & output load variations over the operating temperature range) operating temperature ranges -10 to 70c (cfps-31) -40 to 85c (cfps-31i) storage temperature range -55 to 125c tri-state operation logic ?1? to pad 1 enables oscillator output (> 70% vs) logic ?0? to pad 1 disables oscillator output; when the oscillator output goes to the high impedance state (< 30% vs) no connection to pad 1 enables oscillator output standby current 10 a max solder conditions for typical soldering conditions, please see the relevant pages in applications notes marking model number frequency minimum order information required frequency + model number + operating temperature code (if applicable) + frequency stability outline in mm 5.08 5.0 max 0.950.1 1 2 3 4 2.6 1.4 pad connections 1. enable/disable 2. gnd 3. output 4. +vs solder pads layout 1.8 2.0 4.2 5.08 1.2 7.5 max output waveform t r t f t t 80%vs 20%vs 50%vs 0v +vs duty cycle = t x 100(%) t test circuit - cmos oscilloscope oscillator 43 12 frequency counter 0.1 f a power supply v 15pf * * inclusive of jigging & equipment capacitance +vs +vs europe tel: +44 (0)1460 270200 fax: +44 (0)1460 72578 websit e: www.cmac.com americas tel: +1 919 941 9333 fax: +1 919 941 9371 asia tel: +86 755 8826 5991 fax: +86 755 8826 5990
surface mount spxos electrical specification - maximum limiting values when measured in cmos test circuit frequency range frequency stability supply voltage supply current rise time (tr) fall time (tf) duty cycle model number 1.8 to 32.0mhz 25ppm, 50ppm, 100ppm 1.8v 5% 7ma 5.0ns 5.0ns 40/60% cfps-31 cfps-31i >32.0 to 80.0mhz 15ma 3.5ns 3.5ns >80.0 to 125.0mhz 25ma >125.0 to 160.0mhz 35ma 3.0ns 3.0ns ordering example 24.0mhz cfps-31 i c frequency model number operating temperature code: i = -40 to 85c: not applicable for -10 to 70c frequency stability: a = 25ppm; b = 50ppm; c = 100ppm please note that the rise and fall times listed are the maximum values we specify to cover various frequency breaks. in practise the actual values are generally lower depending upon the spot frequency chosen. for typical values please contact our sales office. europe tel: +44 (0)1460 270200 fax: +44 (0)1460 72578 websit e: www.cmac.com americas tel: +1 919 941 9333 fax: +1 919 941 9371 asia tel: +86 755 8826 5991 fax: +86 755 8826 5990
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