vectron international 267 lowell road , hudson nh 0 3051 tel : 1 - 88 - vectron - 1 e - mail: vectron@vectron.com vtc4 series voltage controlled temperature compensated crystal oscillator the vtc 4 , vctxco features c lipped si ne w ave o utput output fr equencies to 27 mhz fundamental c rystal design optional vcxo f un ction available gold over nickel c ontact pads hermetically s ealed c eramic smd package product is compliant to rohs directive and fully compatible with lead free assembly applications wireless communications base stations point to point radios broadband access test equipment handsets description vectron?s v tc 4 temperature compensated crystal oscillator ( tc xo) is a quartz stabilized , clipped sine wave output, temperature compensated oscillator, operating off either 2 .8, 3.0 , 3.3 or 5.0 volt supply .
vtc4 data s heet vectron international 2 6 7 lowell rd, hudson nh 0 3051 tel : 1 - 88 - vectron - 1 e - mail: ve ctron@vectron.com performance characteristics table 1. electrical perfor mance for the clipped sine wave output option parameter symbol min typical maximum units frequency f o 10.00 0 27 .000 mhz typical supply voltage o r dering option , see last page 2.8v, 3.0v, 3.3v or 5.0v supply current 10.000 mhz to < 15.000 mhz 1 5 .0 0 0 mhz to 2 7 .00 mhz i dd 1.5 2.0 ma output level v p/p 0.8 v output load 10k ii 10pf control voltage impedance z vc 1 mohm control voltage to reach pull all option s (5.0, 3.3,3.0 and 2.8v) 0.5 2 .5 v pull range ordering option, see last page tpr 5, 8, 10, 15 or 20 ppm temperature stability o rdering option, see last page. 0.5 to 5.0 ppm initial accuracy, ?no adjust? option 0.5 ppm power supply stability 0. 2 ppm load stabil i ty 0.2 ppm aging 1.0 ppm/year oper ating temperature o rdering option , see last page 0/55, - 10/60, - 20/70, - 30/80 , - 40/85 c p hase noise , 1 2.80 0mhz 10 hz offset 100 hz offset 1 khz offset 10 khz offset 100 khz offset 5mhz offset - 8 9 - 11 3 - 13 7 - 1 50 - 15 5 - 156 dbc/hz start - up time 2 ms 1. a 0.01uf and a 0.1uf capacitor should be located as close to the supply as possible (to ground ) is recommended .
vtc 4 data s heet vectron international 2 6 7 lowell rd, hudson nh 0 3051 tel : 1 - 88 - vectron - 1 e - mail: ve ctron@vectron.com figure 1 . typical phase noise plot figure 2 . clipped sine wave output
vtc 4 data s heet vectron international 2 6 7 lowell rd, hudson nh 0 3051 tel : 1 - 88 - vectron - 1 e - mail: ve ctron@vectron.com vcxo functional description vcxo feature : the vtc4 can be ordered with a vcxo function f or applications were i t will be used in a pll, or the output frequency needs fine tune adjustments. this is a high impedance input , 1 mohm , and can be driven with an op - amp or terminated with adjustable resist ors etc. pin 1 should not be left floating on the vcxo optional devices. ?no adjust? feature : in applications were the vtc4 will be not be used in a pll, or the output frequency does not fine tune adjustments, the best device to use would be a vtc4 - x0xxx. by using the ?no adjust? option, the circuit is simplified as vc does not need to adjusted or set to a predetermined voltage and pin 1 should be grounded ( pin 1 can be left open but should not be set to a voltage such as the su p ply). outline diagram s , p ad layout and pin out table 2 . pinout pin # symbol function 1 n/c or v c no connect ( vtc4 - x0xx) or vcxo control voltage 2 gnd electrical and case ground 3 f o output frequency 4 v dd supply voltage note: additional pads are used to program and ad just the tcxo during manufacturing and should be left open; do not terminate these to the supply voltage. some designs do not include these additional pads. contact pads are gold over nickel figure 3 , package drawing
vtc 4 data s heet vectron international 2 6 7 lowell rd, hudson nh 0 3051 tel : 1 - 88 - vectron - 1 e - mail: ve ctron@vectron.com a e c d b g f j l i k h tape and reel t able 3 . tape and reel dimensions (mm) tape dimensions reel dimensions # per product a b c d e f g h i j k l reel vtc4 1 6 7 .5 1.5 4 8 1. 5 20. 2 13 60 2 1 6 .4 1 80 100 0 absolute maximum ratings stresses in excess of the absolute maximum ratings can permanen tly damage the device. functional operation is not implied at these or any other conditions in excess of conditions represented in the operational sections of this data sheet. exposure to absolute maximum ratings for extended periods may adversely affect d evice reliability. table 4 . absolute maximum ratings parameter symbol ratings unit storage temperature tstorage - 55/125 c reliability the vtc4 qualification tests have include d : table 5 . environnemental compliance parameter conditions mecha nical shock mil - std - 883 method 20 0 2 mechanical vibration mil - std - 883 method 2007 temperature cycle mil - std - 883 method 1010 solderability mil - std - 883 method 2003 gross and fine leak mil - std - 883 method 1014 resistance to solvents mil - std - 883 meth od 201 5
vtc4 data sheet vectron international 2 6 7 lowell rd, hudson nh 0 3051 tel : 1 - 88 - vectron - 1 e - mail vectron@vectron.com 6 handling precautions although esd protection circuitry has been designed into the the vtc4 , proper precautions should be taken when handling and mounting. vi employs a human body model and a charged - device model (cdm) for esd susceptibility test ing and design protection evaluation. esd thresholds are dependent on the circuit parameters used to define the model. although no industry wide standard has been adopted for the cdm, a standard hbm of resistance = 1.5kohms and capacitance = 100pf is widel y used and therefore can be used for comparison purposes. table 6 . esd ratings model minimum conditions human body model 1000 mil - std - 883 method 3115 charged device model 1500 jesd 22 - c101 suggested ir profile devices are built using lead free ep oxy and can also be subjected to standard lead free ir reflow conditions , table 7 shows max temperatures and lower temperatures can also be used e.g. peak temperature of 220c . table 7 . reflow profile (ipc/jedec j - std - 020b) parameter symbol value prehea t time t s 150 sec min, 200 sec max ramp up r up 3 o c/sec max time above 217 o c t l 60 sec min, 150 sec max time to peak temperature t amb - p 480 sec max time at 260 o c (max) t p 1 0 sec max time at 240 c (max) t p2 60 sec max ramp down r dn 6 o c/sec m ax
vtc4 data sheet vectron international 2 6 7 lowell rd, hudson nh 0 3051 tel : 1 - 88 - vectron - 1 e - mail vectron@vectron.com 7 ordering information table 8 . standard frequency list 1 0 . 0 0 0 12. 504 1 2 . 8 00 13. 000 1 3 . 568 14. 000 14. 31818 14.4 844 1 4 . 7456 1 5 .000 16. 000 16.3 25291 16.3 67667 16. 396 1 6 . 8 00 1 7.500 1 8 . 414 19. 20 0 19. 44 0 19. 6 80 19.800 20 .000 21 .250 2 3 . 104 24. 000 2 4 . 5535 25. 00 0 25 . 6 00 27.456 vtc4 - - product family output frequency tcxo, 5x 3.2 in mh z voltage options temperature options a : +5.0 vdc 5 % , clipped sine output a: 0 to 55 c b : +3.3 vdc 5 % , clipped sine output b : - 10 to 60 c c : +3.0 vdc 5 % , clipped sine output c : - 20 to 70 c d : + 2 . 8 vdc 5 % , clipped sine output d : - 30 to 80 c e: - 40 to 85 c pulling range 0: fixed tcxo, no adjust stability options 1 : 5ppm a : 0 .5 ppm 2: 8ppm 1 : 1 .0ppm 3: 10ppm b: 1.5ppm 4: 1 5 ppm 2 : 2.0ppm 5: 20 ppm c : 2.5ppm 3: 3.0 ppm note: not all combinations are available: d : 3.5ppm 0.5 ppm is available over 0 / 55 c , a nd on a case by case basis for - 10/60c . 4 : 4 . 0 ppm 1.0 ppm to 5.0 ppm is available on all temperature ranges 5: 5.0ppm www.vectron.com december 2 9 , 200 5 for additional information, please contact: usa: ve ctron international 2 6 7 lowell road , hudson , nh 0 3051 tel: 1 - 88 - vectron - 1 fax: 1 - 888 - fax - vectron europe: landstrasse, d - 74924, neckarbischofsheim, germany tel: 49 (0) 7268 8010 fax: 49 (0) 7268 801281 asia: vectron asia pacific sales 1f~2f. no.8 workshop no.308 fenju rd., waigaoqiao free trade zone, pudong new area shanghai, china 200131 ? tel: 8621 50480777 ? fax: 8621 50481881 b b 0 c 1 2 m 8 0 0 2 b
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