11 q-tech corporation - 10150 w. jefferson boulevard, culver city 90232 - tel: 310-836-7900 - fax: 310-836-2157 - www.q-t e c h . c o m q-tech corporation qt 78 series high-reliability miniature clock oscillators 1.8 to 5.0vdc - 15khz to 150mhz qt78 (revision c, july 2008) (eco 9380) applications designed to meet todays requirements for low voltage applications wide military clock applications smart munitions navigation industrial controls microcontroller driver 0.170 max. 0.018.003 (0.460.08) (4.318 max.) 0.550.0.005 (13.9700.13) 0.3500.005 (8.890.13) 0.100.005 0.200.005 (2.540.13) (5.0800.13) (7.6200.13) (9.5250.13) p/n freq. d/c s/n q-tech 4 3 1 2 .130 max. 0.300.005 0.3750.005 3.302 max. package specifications and outline dimensions are in inches (mm) pin no. function 1 tristate or nc 2 gnd/case 3 output 4 vdd 0.39 (9.91) 0.13 (3.30) 0.13 (3.30) 0.07 (1.78) 0.20 (5.08) 0.27 (6.86) package material: 90 al 2 o 3 lead material: kovar lead finish: gold plated: 50 80 inches nickel underplate: 100 250 inches description q-techs surface-mount qt78 series oscillators consist of an ic 5vdc, 3.3vdc, 2.5vdc, 1.8vdc clock square wave generator and a round at high-precision quartz crystal built in a rugged surface-mount ceramic j-lead miniature package. features made in the usa eccn: ear99 dfars 252-225-7014 compliant: electronic component exemption usml registration m17677 available as qpl mil-prf-55310/27, /28, and /30 broad frequency range from 15khz to 150mhz rugged 4 point mount design for high shock and vibration acmos, hcmos, ttl or lvhcmos logic tri-state output option (d) hermetically sealed ceramic smd package fundamental and 3rd overtone designs low phase noise custom designs available q-tech does not use pure lead or pure tin in its products rohs compliant
2 q-tech corporation - 10150 w. jefferson boulevard, culver city 90232 - tel: 310-836-7900 - fax: 310-836-2157 - www.q-t e c h . c o m q-tech corporation qt78 (revision c, july 2008) (eco 9380) electrical characteristics qt78 series high-reliability miniature clock oscillators 1.8 to 5.0vdc - 15khz to 150mhz parameters qt78ac qt78hc qt78t qt78l qt78n qt78r output frequency range (fo) 15khz 85.000mhz (*) 15khz 150.000mhz (*) 125.000khz 133.000mhz 125.000khz 100.000mhz supply voltage (vdd) 5.0vdc 10 3.3vdc 10 2.5vdc 10 1.8vdc 10 frequency stability (f/t) see option codes operating temperature (topr) see option codes storage temperature (tsto) -62c to + 125c operating supply current (idd) (no load) 20 ma max. - 15khz < 16mhz 25 ma max. - 16mhz < 32mhz 35 ma max. - 32mhz < 60mhz 45 ma max. - 60mhz 85mhz 3 ma max. - 15khz < 500khz 6 ma max. - 500khz < 16mhz 10 ma max. - 16mhz < 32mhz 20 ma max. - 32mhz < 60mhz 30 ma max. - 60mhz < 100mhz 40 ma max. - 100mhz < 130mhz 50 ma max. - 130mhz 150mhz 3 ma max. - 125khz < 500khz 6 ma max. - 500khz < 40mhz 15 ma max. - 40mhz < 60mhz 25 ma max. - 60mhz < 85mhz 35 ma max. - 85mhz 133mhz 4 ma max. - 125khz < 40mhz 10 ma max. - 40mhz < 50mhz 20 ma max. - 50mhz < 85mhz 25 ma max. - 85mhz 100mhz symmetry (50 of ouput waveform or 1.4vdc for ttl) 45/55 max. - 15khz < 15mhz 40/60 max. - 15 85mhz (tighter symmetry available) 45/55 max. - 15khz < 15mhz 40/60 max. - 15 150mhz (tighter symmetry available) 45/55 max. - 125khz < 15mhz 40/60 max. - 15 133mhz (tighter symmetry available) 45/55 max. - 125khz < 15mhz 40/60 max. - 15 100mhz (tighter symmetry available) rise and fall times (with typical load) 6ns max. - fo < 30mhz 3ns max. - fo 30 - 85mhz (between 10 to 90) 7ns max. - fo < 30mhz 3ns max. - fo 30 - 85mhz (between 10 to 90) 5ns max. - fo < 30mhz 3ns max. - fo 30 - 85mhz (between 0.8v to 2.0v) 6ns max. - 15khz < 40mhz 3ns max. - 40 150mhz (between 10 to 90) 5ns max. - 125khz < 40mhz 3ns max. - 40 133mhz (between 10 to 90) 5ns max. - 125khz < 40mhz 3ns max. - 40 100mhz (between 10 to 90) output load 15pf // 10kohms 50pf max. or 10ttl for (fo < 60mhz) 30pf max. or 6ttl for (fo 60mhz) 15pf // 10kohms (2lsttl) 10ttl (fo < 60mhz) 6ttl (fo 60mhz) 15pf // 10kohms (30pf max. for f 50mhz) 15pf // 10kohms start-up time (tstup) 5ms max. output voltage (voh/vol) 0.9 x vdd min.; 0.1 x vdd max. 2.4v min.; 0.4v max. 0.9 x vdd min.; 0.1 x vdd max. output current (ioh/iol) 24ma max. 8ma max. -1.6 ma/ttl +40 a/ttl 4ma max. enable/disable tristate function pin 1 vih 2.2v oscillation; vil 0.8v high impedance vih 0.7 x vdd oscillation; vil 0.3 x vdd high impedance jitter rms 1 (at 25c) 8ps typ. - < 40mhz 5ps typ. - 40mhz 15ps typ. - < 40mhz 8ps typ. - 40mhz aging (at 70c) 5ppm max. first year / 2ppm max. per year thereafter (*) frequency as low as 1khz without tristate function available. contact q-tech for details.
33 q-tech corporation - 10150 w. jefferson boulevard, culver city 90232 - tel: 310-836-7900 - fax: 310-836-2157 - www.q-t e c h . c o m q-tech corporation qt 78 series high-reliability miniature clock oscillators 1.8 to 5.0vdc - 15khz to 150mhz qt78 (revision c, july 2008) (eco 9380) packaging options other options available for an additional charge ordering information frequency stability vs. temperature codes may not be available in all frequencies. for non-standard requirements, contact q-tech corporation at sales@q-tech.com specifications subject to change without prior notice. standard packaging in anti-static plastic tube (60pcs/tube) tape and reel (800pcs/reel) is available for an additional charge. solder dip sn/pb 60/40 p. i. n. d. test ac = acmos hc = hcmos t = ttl qt78xx d xx m 85.000mhz output frequency screened to mil-prf-55310,level b (left blank if no screening) 1 = 100ppm at 0c to +70c 4 = 50ppm at 0c to +70c 5 = 25ppm at -20c to +70c 6 = 50ppm at -55c to +105c 9 = 50ppm at -55c to +125c 10 = 100ppm at -55c to +125c 11 = 50ppm at -40c to +85c 12 = 100ppm at -40c to +85c 14 = 20ppm at -20c to +70c 15 = 25ppm at -40c to +85c tristate option d (left blank if no tristate) 5.0vdc qt78l d xx m 150.000mhz output frequency screened to mil-prf-55310,level b (left blank if no screening) 1 = 100ppm at 0c to +70c 4 = 50ppm at 0c to +70c 5 = 25ppm at -20c to +70c 6 = 50ppm at -55c to +105c 9 = 50ppm at -55c to +125c 10 = 100ppm at -55c to +125c 11 = 50ppm at -40c to +85c 12 = 100ppm at -40c to +85c 14 = 20ppm at -20c to +70c 15 = 25ppm at -40c to +85c tristate option d (left blank if no tristate) 3.3vdc qt78n d xx m 133.000mhz output frequency screened to mil-prf-55310,level b (left blank if no screening) 1 = 100ppm at 0c to +70c 4 = 50ppm at 0c to +70c 5 = 25ppm at -20c to +70c 6 = 50ppm at -55c to +105c 9 = 50ppm at -55c to +125c 10 = 100ppm at -55c to +125c 11 = 50ppm at -40c to +85c 12 = 100ppm at -40c to +85c 14 = 20ppm at -20c to +70c 15 = 25ppm at -40c to +85c tristate option d (left blank if no tristate) 2.5vdc qt78r d xx m 100.000mhz output frequency screened to mil-prf-55310,level b (left blank if no screening) 1 = 100ppm at 0c to +70c 4 = 50ppm at 0c to +70c 5 = 25ppm at -20c to +70c 6 = 50ppm at -55c to +105c 9 = 50ppm at -55c to +125c 10 = 100ppm at -55c to +125c 11 = 50ppm at -40c to +85c 12 = 100ppm at -40c to +85c 14 = 20ppm at -20c to +70c 15 = 25ppm at -40c to +85c tristate option d (left blank if no tristate) 1.8vdc
44 q-tech corporation - 10150 w. jefferson boulevard, culver city 90232 - tel: 310-836-7900 - fax: 310-836-2157 - www.q-t e c h . c o m q-tech corporation qt 78 series high-reliability miniature clock oscillators 1.8 to 5.0vdc - 15khz to 150mhz qt78 (revision c, july 2008) (eco 9380) reflow profile embossed tape and reel information for qt78 environmental specifications the five transition periods for the typical reflow process are: preheat flux activation thermal equalization reflow cool down 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 time (s) 25 50 75 100 125 150 175 200 225 250 temp(*c) 0 60s min. 120s max. 60s min. 120s max. 225o min. 240o max. 60s min. 150s max. 240o ramp down (6o/s max) ramp up (3o/s max) typical reflow profile for sn-pb assembly dimensions are in mm. tape is compliant to eia-481-a. reel size vs. quantity: feeding (pull) direction ?13.00.5 2.5 4.800.1 5o max ?1.5 2.0 1.750.1 0.3.005 ?1.5 2.00.1 5.50.1 10.010.1 4.00.1 ?1781 or ?3301 26 24.00.3 160.1 14.53 0.1 120o reel size (diameter in mm) qty per reel (pcs) 178 250 330 1000 q-tech standard screening/qci (mil-prf55310) is available for all of our qt78 products. q-tech can also customize screening and test procedures to meet your specific requirements. the qt78 product is designed and processed to exceed the following test conditions: environmental test test conditions temperature cycling mil-std-883, method 1010, cond. b constant acceleration mil-std-883, method 2001, cond. a, y1 seal fine leak mil-std-883, method 1014, cond. a burn-in 160 hours, 125c with load aging 30 days, 70c, 1.5ppm max vibration sinusoidal mil-std-202, method 204, cond. d shock, non operating mil-std-202, method 213, cond. i (see note 1) thermal shock, non operating mil-std-202, method 107, cond. b ambient pressure, non operating mil-std-202, 105, cond. c, 5 minutes dwell time minimum resistance to solder heat mil-std-202, method 210, cond. b moisture resistance mil-std-202, method 106 terminal strength mil-std-202, method 211, cond. c resistance to solvents mil-std-202, method 215 solderability mil-std-202, method 208 note 1: additional shock results successfully passed on 16mhz, 40mhz, and 80mhz shock 850g peak, half-sine, 1 ms duration (mil-std-202, method 213, cond. d modified) shock 1,500g peak, half-sine, 0.5ms duration (mil-std-883, method 2002, cond. b) please contact q-tech for higher shock requirements
55 q-tech corporation - 10150 w. jefferson boulevard, culver city 90232 - tel: 310-836-7900 - fax: 310-836-2157 - www.q-t e c h . c o m q-tech corporation qt 78 series high-reliability miniature clock oscillators 1.8 to 5.0vdc - 15khz to 150mhz qt78 (revision c, july 2008) (eco 9380) vdd gnd 0.1xvdd 0.9xvdd voh vol tr tf th t 0.5xvdd symmetry = x 100% th t output waveform (typical) frequency vs. temperature curve test circuit - - output ground 4 3 2 0.1f 15pf 1 tristate function power supply 10k ma vdc + + + (*) or 0.01f qt78 (*) cl includes probe and jig capacitance typical test circuit for cmos logic frequency-temperature curves qt78rd-70mhz 1.8vdc -40 -30 -20 -10 10 20 30 40 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 05 10 15 20 25 30 35 temp (o) p p m 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 0 45o 45o hybrid case substrate die d/a epoxy d/a epoxy heat die r1 d/a epoxy substrate d/a epoxy hybrid case r2 r3 r4 r5 thermal characteristics ja jc ca die t t t c a j ca jc (figure 1) (figure 2) the tristate function on pin 1 has a built-in pull-up resistor typical 50k, so it can be left floating or tied to vdd without deteriorating the electrical performance. the heat transfer model in a hybrid package is described in figure 1. heat spreading occurs when heat flows into a material layer of increased cross-sectional area. it is adequate to assume that spreading occurs at a 45 angle. the total thermal resistance is calculated by summing the thermal resistances of each material in the thermal path between the device and hybrid case. rt = r1 + r2 + r3 + r4 + r5 the total thermal resistance rt (see figure 2) between the heat source (die) to the hybrid case is the theta junction to case (theta jc) inc/w. theta junction to case (theta jc) for this product is 30c/w. theta case to ambient (theta ca) for this part is 100c/w. theta junction to ambient (theta ja) is 130c/w. maximum power dissipation pd for this package at 25c is: pd(max) = (tj (max) ta)/theta ja with tj = 175c (maximum junction temperature of die) pd(max) = (175 25)/130 = 1.15w
66 q-tech corporation - 10150 w. jefferson boulevard, culver city 90232 - tel: 310-836-7900 - fax: 310-836-2157 - www.q-t e c h . c o m q-tech corporation qt 78 series high-reliability miniature clock oscillators 1.8 to 5.0vdc - 15khz to 150mhz qt78 (revision c, july 2008) (eco 9380) phase noise is measured in the frequency domain, and is expressed as a ratio of signal power to noise power measured in a 1hz bandwidth at an offset frequency from the carrier, e.g. 10hz, 100hz, 1khz, 10khz, 100khz, etc. phase noise measurement is made with an agilent e5052a signal source analyzer (ssa) with built-in outstanding low-noise dc power supply source. the dc source is floated from the ground and isolated from external noise to ensure accuracy and repeatability. in order to determine the total noise power over a certain frequency range (bandwidth), the time domain must be analyzed in the frequency domain, and then reconstructed in the time domain into an rms value with the unwanted frequencies excluded. this may be done by converting l(f) back to s(f) over the bandwidth of interest, integrating and performing some calculations. the value of rms jitter over the bandwidth of interest, e.g. 10khz to 20mhz, 10hz to 20mhz, represents 1 standard deviation of phase jitter contributed by the noise in that defined bandwidth. figure below shows a typical phase noise/phase jitter of a qt78ac6, 5.0vdc, 80mhz clock at offset frequencies 10hz to 5mhz, and phase jitter integrated over the bandwidth of 12khz to 1mhz. phase noise and phase jitter integration period jitter as data rates increase, effects of jitter become critical with its budgets tighter. jitter is the deviation of a timing event of a signal from its ideal position. jitter is complex and is composed of both random and deterministic jitter components. random jitter (rj) is theoretically unbounded and gaussian in distribution. deterministic jitter (dj) is bounded and does not follow any predictable distribution. dj is also referred to as systematic jitter. a technique to measure period jitter (rms) one standard deviation (1) and peak-to-peak jitter in time domain is to use a high sampling rate (>8g samples/s) digitizing oscilloscope. figure shows an example of peak-to-peak jitter and rms jitter (1) of a qt78ac-24mhz, at 5.0vdc. rms jitter (1): 5.37ps peak-to-peak jitter: 43ps symbol definition l(f) integrated single side band phase noise (dbc) s (f)=(180/)x 2 l(f)df spectral density of phase modulation, also known as rms phase error (in degrees) rms jitter = s (f)/(fosc.360) jitter(in seconds) due to phase noise. note s (f) in degrees.
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