www.vectron.com usa: vectron international ? 166 glover avenue, norwalk, ct 06856 ? tel: 1-88-vectron-1 ? fax : 1-888-fax-vectron europe: in denmark, finland, ireland, italy, israel, norway, spain, uk : tel: 44(0) 1703 766 288 ? fax: 44 (0) 1703 766 822 in austria, belgium, france, germany, luxembourg, netherlands, sweden, switzerland : tel: 49 (0) 72 63 648 0 ? fax: 49(0) 72 63 619 6 asia: in china, taiwan, japan : tel: 1-603-598-0075 ? in korea, singapore, australia, india: tel: 1-203-853-4433 ? fax: 1-203-849-1423 vectron international reserves the right to make changes to the product(s) and/or information contained herein without notice. no liability is assumed as a result of their use or application. no rights under any patent accompany the sale of any such product(s) or information. product data sheet j-type voltage controlled crystal oscillator the j-type voltage controlled crystal oscillator features industry standard 6 pin j-lead ceramic smd small 14mm x 9mm pa ckage advanced custom asic technology absolute pull range performance beyond 100 ppm available output frequencies to 155.52 mhz 3.3 volt or 5.0 volt supply cmos or ttl output with tri-state low phase noise versions available commercial or industrial temperature range eia compatible tape and reel packaging description the j-type voltage controlled crystal oscillator expands vti?s advanced vcxo performance capabilities while adhering to a package footprint compatible with the industry-common j-lead package. performance advantages include superior phase noise, improved linearity, higher frequencies, tighter stability and increased pull. advanced custom asic technology results in a highly robust, reliable and predictable device. the j-type vcxo is a quartz stabilized square-wave generator capable of driving either a cmos or ttl load. the device is packaged in a 6 pin j-lead ceramic package with a seam welded lid.
j-type voltage controlled crystal oscillator www.vectron.com usa: vectron international ? 166 glover avenue, norwalk, ct 06856 ? tel: 1-88-vectron-1 ? fax : 1-888-fax-vectron europe: in denmark, finland, ireland, italy, israel, norway, spain, uk : tel: 44(0) 1703 766 288 ? fax: 44 (0) 1703 766 822 in austria, belgium, france, germany, luxembourg, netherlands, sweden, switzerland : tel: 49 (0) 72 63 648 0 ? fax: 49(0) 72 63 619 6 asia: in china, taiwan, japan : tel: 1-603-598-0075 ? in korea, singapore, australia, india: tel: 1-203-853-4433 ? fax: 1-203-849-1423 vectron international reserves the right to make changes to the product(s) and/or information contained herein without notice. no liability is assumed as a result of their use or application. no rights under any patent accompany the sale of any such product(s) or information. 2 pin information table 1. pin function pin symbol function 1 v c vcxo control voltage 2 (5) 1 n.c. no user connection 3 gnd case ground 4 output vcxo output 5 (2) 1 tri-state ttl low to disable output. ttl high or float to enable output. 6 v dd power supply voltage (3.0 v 10%, 3.3 v 10% or 5.0 v 10%) 1. alternate pin configuration for tri -state control on pin2. alternate configuration is indicated by the last letter of the code ?d? as indicated in table 6. performance characteristics table 2. electrical performance parameter symbol minimum typical maximum units supply voltage 1 v dd 0.9* v dd v dd 1.1* v dd v supply current i dd 10 ma + 0.25 ma/mhz typical ma output voltage levels 2 output high output low v oh v ol 0.8*v dd 0.1* v dd v v transition times 2 rise time fall time t r t f 5.0 5.0 ns ns duty cycle 3 d 45 50 55 % nominal output frequency 4 f 0 183e-6 155.52 mhz absolute pull range apr see part numbering and apr section ppm control voltage v c 0 v dd v center voltage v 0 please contact vti for details v leakage current of control input i c -1 1 m a control voltage bandwidth (-3 db, v c =0.5*v dd ) 5 bw 10 khz gain slope @ v 0 d f/ d v c 150 ppm/v phase noise f n contact vti for phase noise specifications dbc/hz 1. a 0.1 m f low frequency tantalum bypass capacitor in parallel with a 0.01 m f high frequency ceramic capacitor is recommended. 2. figure 1 defines these parameters. figure 2 illustrates the equivalent 5-gate ttl load and operating conditions under which these parameters are specified and tested. 3. duty cycle is defined as (on time ? period), with v s = 1.4 for ttl or v s = 2.5 v for cmos, per figure 1. 4. other frequencies may be available, please contact factory with your special requirements. 5. wider bandwidth versions are available, please contact vti for details. figure 1. output waveform figure 2. output test conditions (25 5c) absolute pull range (apr) specification the frequency deviation of the j-type vcxo is specified in terms of absolute pull range (apr). apr provides the user with a guaranteed specification for minimum available frequency deviation over all operating conditions. operating conditions include operating temperature range, power supply variation, differences in output loading and changes due to aging. a j-type vcxo with an apr of +/-50 ppm will track a +/-50 ppm reference source over all operating conditions. the same device will typically demonstrate a total pull capability of 150 to 350 ppm. absolute pull range (apr) is specified by the fourth character of the product code in table 6. please contact vti for the apr application note. oscillator aging quartz stabilized oscillators typically exhibit a small shift in output frequency during aging. the major factors which lead to this shift are changes in the mechanical stress on the crystal and mass-loading of foreign material on the crystal. 0v v oh v s v ol t f t r period on time + - + - i c v c 4 3 . 1 m f .01 m f 15pf 2 5 6 1 i dd 650 w 1.8k v dd 6 5 4 3 2 1 top view
j-type voltage controlled crystal oscillator www.vectron.com usa: vectron international ? 166 glover avenue, norwalk, ct 06856 ? tel: 1-88-vectron-1 ? fax : 1-888-fax-vectron europe: in denmark, finland, ireland, italy, israel, norway, spain, uk : tel: 44(0) 1703 766 288 ? fax: 44 (0) 1703 766 822 in austria, belgium, france, germany, luxembourg, netherlands, sweden, switzerland : tel: 49 (0) 72 63 648 0 ? fax: 49(0) 72 63 619 6 asia: in china, taiwan, japan : tel: 1-603-598-0075 ? in korea, singapore, australia, india: tel: 1-203-853-4433 ? fax: 1-203-849-1423 vectron international reserves the right to make changes to the product(s) and/or information contained herein without notice. no liability is assumed as a result of their use or application. no rights under any patent accompany the sale of any such product(s) or information. 3 as the oscillator ages, relaxation of the crystal mounting stress or transfer of environmental stress through the package to the crystal mounting arrangement can lead to frequency variations. vti has minimized these two effects through the use of a miniature at-cut strip resonator crystal which allows a superior mounting arrangement and results in minimal relaxation and almost negligible environmental stress transfer. mass-loading on the crystal generally results in a frequency decrease and is typically due to out-gassing of material within a hermetic package or from contamination by external material in a less than hermetic package. vti has minimized the impact of mass loading by ensuring hermetic integrity and minimizing out-gassing by limiting the number of internal components through the use of asic technology. under normal operating conditions with an operating temperature of 40c, the j-type will typically exhibit 2 ppm aging in the first year of operation. the device will then typically exhibit 1 ppm aging the following year with a logarithmic decline each year thereafter. handling precautions although protection circuitry has been designed into this device, proper precautions should be taken to avoid exposure to electrostatic discharge (esd) during handling and mounting. vti employs a human-body model (hbm) and a charged- device model (cdm) for esd-susceptibility testing and protection design evaluation. esd voltage thresholds are dependent on the circuit parameters used to define the mode. although no industry- wide standard has been adopted for the cdm, a standard hbm (resistance = 1500 w , capacitance = 100pf) is widely used and therefore can be used for comparison purposes. the hbm esd threshold presented here was obtained by using these circuit parameters. table 3. esd threshold voltage model threshold unit human-body (hbm) 1500* volts min. charged-device (cdm) 1500 volts min. *mil-std-883d, method 3015, class 1 table 4. environmental compliance parameter conditions shock and vibration mil-std-883c, 2002.3 a, 2007.1 a mechanical vibration mil-std-883c, 2007.1 a lead solderability mil-std-883c, 2003.5 fine and gross leak mil-std-883c, 1014.7 storage temp. -55c to 125c 220 45-60s. 60-90s. 60s. 150 183 time(s) figure 3. suggested reflow profile figure 4. suggested pad layout tape and reel information k i h g f e d c b a m l j figure 5. tape and reel information table 5. tape and reel dimensions (dimensions are in mm) a b c d e f g h i j k l m 24.0 11.51 1.5 3.99 11.99 4.8 1.78 20.6 13.0 63 5.0 25 330 dimensions are in inches and (millimeters) 0.118 (3.00) 0.200 (5.08) 0.100 (2.54) 0.346 (8.80) 0.050 (1.27)
j-type voltage controlled crystal oscillator www.vectron.com usa: vectron international ? 166 glover avenue, norwalk, ct 06856 ? tel: 1-88-vectron-1 ? fax : 1-888-fax-vectron europe: in denmark, finland, ireland, italy, israel, norway, spain, uk : tel: 44(0) 1703 766 288 ? fax: 44 (0) 1703 766 822 in austria, belgium, france, germany, luxembourg, netherlands, sweden, switzerland : tel: 49 (0) 72 63 648 0 ? fax: 49(0) 72 63 619 6 asia: in china, taiwan, japan : tel: 1-603-598-0075 ? in korea, singapore, australia, india: tel: 1-203-853-4433 ? fax: 1-203-849-1423 vectron international reserves the right to make changes to the product(s) and/or information contained herein without notice. no liability is assumed as a result of their use or application. no rights under any patent accompany the sale of any such product(s) or information. 4 outline diagram figure 6. outline diagram ordering information table 6. part numbering j c u g l a package supply voltage (v) vcxo type apr ( ppm) operating temp. (c) output symmetry j 6 j-lead ceramic c 5.0 10% u standard c 20 c 0 to 70 a ttl 50 5% pin 5 tristate d 3.3 10% l 10% linearity f 32 l -40 to 85 j cmos 50 5% pin 5 tristate m 20 ppm stability g 50 d cmos 50 5% pin 2 tristate n 80 h 100 note: not all combinations are feasible, please contact vti for details standard frequencies (mhz) 13.000 16.384 19.440 19.6608 20.480 24.704 26.000 27.300 32.768 34.368 37.056 38.880 40.960 44.736 49.152 51.840 62.208 64.000 65.536 77.760 155.520 note: other frequencies are available upon request, please contact vti for details example part # for additional information please contact:
|
