vectron international 267 lowell road, hudson nh 03051 tel:1-88-vectron-1 e-mail: vectron@vectron.com vc-800 voltage controlled crystal oscillator the vc-800 voltage cont rolled crystal oscillator features ? worlds smallest vcxo, 5.0 x 3.2 x 1.5 mm ? high frequencies to 74.250 mhz ? 5.0 or 3.3 v operation ? linearity 10% ? tri-state output ? low jitter < 6ps rms ? vcxo with cmos outputs ? 0/70 or ?40/85 c temperature range ? hermetically sealed ceramic smd package product is compliant to rohs directive and fully compatible with lead free assembly applications ? sonet/sdh ? dwdm ? xdsl/pcmcia cards ? digital video description vectron?s vc-800 voltage controlled crystal oscillator (vcxo) is a quartz stabilized square wave generator with a cmos output and is tested at cmos and ttl (5.0 volt operation) logic levels. the vc-800 is the smallest available vcxo making it ideally suitable for pcmcia applications as well as any other where size is limited but performance is required. vc f o output buffer / tri-state input buffer esd diodes
vc-800 voltage controlled crystal oscillator vectron international 267 lowell road, hudson nh 03051 te l:1-88-vectron-1 e-mail: vectron@vectron.com performance characteristics table 1. electrical performance parameter symbol min typical maximum units frequency f o 1.544 75.000 mhz supply voltage 1 (+3.3 v) (+5.0 v) v dd 2.97 4.5 3.3 5.0 3.63 5.5 v supply current i dd 12 25 ma output logic levels output logic high 2 output logic low 2 v oh v ol 0.9*v dd 0.1v dd v v transition times rise time 2 fall time 2 t r t f 1 1 3 3 ns ns tristate output enabled output disabled v in v il 2.5 0.7 v v symmetry or duty cycle 3 (ordering option) sym 40 50 60 % operating temperature ( ordering option ) 0/70 or ?40/85 c test conditions for apr (+5v option) v c 0.5 4.5 v test conditions for apr (+3.3v option) v c 0.3 3.0 v absolute pull range ( ordering option ) apr 50 70 80 ppm gain transfer (see figure 3) positive ppm/v control voltage leakage current i vcxo 1 ua control voltage bandwidth (-3db) bw 10 khz phase noise 10 hz offset 100 hz offset 1 khz offset 10 khz offset 100 khz offset 1 mhz offset -58 -88 -118 -143 -151 -151 dbc/hz dbc/hz dbc/hz dbc/hz dbc/hz dbc/hz package size 5.0 x 3.2 x 1.5 mm 1. a 0.01uf and a 0.1uf capacitor should be located as close to the supply as po ssible (to ground) is recommended. 2. figure 1 defines these parameters. figure 2 illustrates the equivalent five gate ttl l oad and operating conditions under wh ich these parameters are tested and specified. 3. symmetry is defined as (on time/period with vs= 1.4 v fo r ttl and vs=2.5 v for cmos, 5 volt operation, and vs=1.65v for 3.3 volt operation. figure 1. output waveform figure 2. typical output test conditions (25 5c) 80 % vs 20 % t f t r pe r io d on time + - + - i c v c 4 3 . 1 f .01 f 15pf 25 6 1 i dd 650 ? v dd 1.8k
vc-800 voltage controlled crystal oscillator vectron international 267 lowell road, hudson nh 03051 te l:1-88-vectron-1 e-mail: vectron@vectron.com a e c d b g f j l i k h outline diagram, pad layout and pin out pin # symbol function 1 v c control voltage 2 tri-state logic low disables output logic high or no connection enables output waveform 3 gnd ground 4 f o output frequency 5 cmos/ttl logic low for cmos optimized symmetry logic high or no connection for ttl optimized symmetry 6 v dd supply voltage tape and reel tape and reel dimensions (mm) tape dimensions reel dimensions # per product a b c d e f g h i j k l reel vc-800 12 5.5 1.5 4 8 1.78 20.6 13 55 6 12.4 178 500 1 23 4 5 6
vc-800 voltage controlled crystal oscillator vectron international 267 lowell road, hudson nh 03051 te l:1-88-vectron-1 e-mail: vectron@vectron.com absolute maximum ratings stresses in excess of the absolute maximum rati ngs can permanently damage the device. functional operation is not implied at these or any other c onditions in excess of conditions represented in the operational sections of this data sheet. exposure to absolute maximum ratings for extended periods may adversely affect device reliability. table 2. absolute maximum ratings parameter symbol ratings unit power supply v dd 6 vdc storage temperature tstorage -55/125 c voltage control range v c 0 to v dd v figure 3. typical frequency pull versus c ontrol voltage, 35.328mhz output, 3.3 volt s upply -200.0 -150.0 -100.0 -50.0 0.0 50.0 100.0 150.0 200.0 0.30 0.60 0.90 1.20 1.50 1.80 2.10 2.40 2.70 3.00 control voltage (volts) frequency pull (ppm)
vc-800 voltage controlled crystal oscillator vectron international 267 lowell road, hudson nh 03051 te l:1-88-vectron-1 e-mail: vectron@vectron.com 25 217 200 150 260 temperature (degc) time (sec) t s t amb-p t l t p r up r dn reliability the vc-800 is capable of meeting t he following qualification tests. table 3. environmental compliance parameter conditions mechanical shock mil-std-883 method 2002 mechanical vibration mil-std-883 method 2007 solderability mil-std-883 method 2003 gross and fine leak mil-std-883 method 1014 resistance to solvents mil-std-883 method 2016 handling precautions although esd protection circuitry has been designed into the the vc-800, proper precautions should be taken when handling and mounting. vi employs a human body model and a charged-device model (cdm) for esd susceptibility testing and design prot ection evaluation. esd thresholds are dependent on the circuit parameters used to define the m odel. although no industry wide standard has been adopted for the cdm, a standard hbm of resistance = 1. 5kohms and capacitance = 100pf is widely used and therefore can be used for comparison purposes. table 4. esd ratings model minimum conditions human body model 1500 mil-std-883 method 3115 charged device model 1000 jesd 22-c101 the vc-800 is qualified to meet the jedec standard for pb-free assembly. the temperatures and time intervals listed are based on the pb-free small body requirements and parameters are listed in the table below. the contact pads are gold over nickel so lowe r ir reflow temperatures such as 220c can be used (device is backwards compatible with a lead solder assembly). the vc-800 is hermetically sealed so an aqueous wash is not an issue. table 5. reflow profile (ipc/jedec j-std-020c) parameter symbol value preheat time t s 60 sec min, 180 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 t p 20 sec min, 40 sec max ramp down r dn 6 o c/sec max
vc-800 voltage controlled crystal oscillator vectron international 267 lowell road, hudson nh 03051 te l:1-88-vectron-1 e-mail: vectron@vectron.com standard frequencies (mhz) 3.600 4.096 8.192 10.000 12.960 13.500 16.384 19.440 27.000 28.375 32.768 34.560 38.785 44.736 51.840 74.1758 74.250 other frequencies may be available upon request ordering information vc - 800 - k a c - g t j ? xx.xx note: not all combinations of options are available. for additional information, please contact: 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 thei r use or application. no ri ghts under any patent accompany the sale of any such pro duct(s) or information. usa: vectron international, 267 lowe ll rd, hudson, nh 03051 . . . . . . . tel: 1-88-vectron-1 f ax: 1-888-fax-vectron europe: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . tel: 49 (0) 7268 8010 fax: 49 (0) 7268 801281 asia: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . tel: 86 21 5048 0777 fax: 86 21 5048 1881 product family vc = vcxo package 800= 5.0x3.2x1.5 mm input k = 5.0 vdc 10% l = 3.3 vdc 10% output a = cmos operating temperature c = 0c to 70 c f = -40c to 85 c frequency (mhz) symmetry j = 505% k= 5010% tristate t = pin 2: enable high (or float) / disable low absolute pull range g = 50 ppm minimum m = 70 ppm minimum n = 80 ppm minimum
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