leaded vcxos iqvcxo-172, -173, -174 issue 10; 13 october 2004 delivery options please contact our sales office for current leadtimes output compatibility h cmos/ls ttl drive capability: 15pf/10ls ttl package outline 14 pin dil compatible resistance welded enclosure, hermetically sealed with glass to metal seals standard frequency stabilities 25ppm, 50ppm , 100ppm @ v c = 2.5v (inclusive of supply voltage & output load variations over the operating temperature range) operating temperature ranges 0 to 70c -40 to 85c storage temperature range ?55 to 125c output frequency change 50ppm min (iqvcxo-172) 100ppm min (iqvcxo-173) 200ppm min (iqvcxo-174) voltage control pin 1 2.5v 2.0v marking model number operating temperature code (if applicable) frequency stability code frequency date code (year/week) minimum order information required frequency + model number + operating temperature code (if applicable) + frequency stability output waveform - hcmos/ls ttl outline in mm typical voltage control curve @ 25c & 20.0 mhz (iqvcxo-172) -50 -25 0 25 50 0.5 1.5 2.5 3.5 4.5 vcont(t) ? f/f 0 (ppm) 17 14 8 pin connections 1. voltage control 7. gnd 8. output 14. +vs 4.0 min 0.8 max ? 0.45 7.62 13.08 max 15.24 21.0 max 8.0 max t r t f t t 90%vs 10%vs 50%vs 0v +vs 2.4v 0.4v duty cycle = t x 100(%) t 1.4v
leaded vcxos test circuit - hcmos +vs 15pf* oscillator v 17 14 8 v 2.0k 10.0k oscilloscope frequency counter a *inclusive of jigging & equipment capacitance 0.1 f test circuit - ls ttl oscilloscope frequency counter +vs 15pf* oscillator d 4 17 14 8 d 2 d 3 2.0k v 2.0k 10.0k a d 1 to d 4 = in4148 or equivalent v d 1 *inclusive of jigging & equipment capacitance 0.1 f electrical specifications - maximum limiting values when measured in hcmos test circuit. frequency frequency supply output supply current rise time(t r ) fall time(t f ) duty cycle model number range stability voltage frequency change 1.0 to 25ppm 5v0.25v 50ppm min 20ma 10ns 10ns 40/60% iqvcxo-172 < 24.0mhz iqvcxo-172i 1.0 to 25ppm 5v0.25v 100ppm min 20ma 10ns 10ns 40/60% iqvcxo-173 < 24.0mhz 50ppm iqvcxo-173i 1.0 to 25ppm 5v0.25v 200ppm min 20ma 10ns 10ns 40/60% iqvcxo-174 < 24.0mhz 50ppm iqvcxo-174i 100ppm 24.0 to 25ppm 5v0.25v 50ppm min 40ma 10ns 10ns 40/60% iqvcxo-172 45.0mhz iqvcxo-172i 24.0 to 25ppm 5v0.25v 100ppm min 40ma 10ns 10ns 40/60% iqvcxo-173 45.0mhz 50ppm iqvcxo-173i 24.0 to 25ppm 5v0.25v 200ppm min 40ma 10ns 10ns 40/60% iqvcxo-174 45.0mhz 50ppm iqvcxo-174i 100ppm ordering example 22.0mhz iqvcxo-172 i c frequency model number operating temperature code: i = -40 to 85c; not applicable for 0 to 70c frequency stability: a = 25ppm, b = 50ppm, c = 100ppm note: some specifications may not be available, please contact our sales office.
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