vectron international 166 glover avenue, norwalk ct 06856-5160 tel:1-88-vectron-1 e-mail: vectron@vectron.com vc-800 voltage controlled crystal oscillator the vc-800 voltage controlled crystal oscillator features worlds smallest vcxo, 5.0 x 3.2 x 1.5 mm high frequencies to 51.84 mhz 5 or 3.3 v operation tri-state output low jitter < 6ps rms for freq >12mhz vcxo with cmos outputs 0/70 or ?40/85 c temperature range hermetically sealed ceramic smd package 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 logic levels (5 volt operation). 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 product data sheet
vc-800 voltage controlled crystal oscillator vectron international 166 glover avenue, norwalk ct 06856-5160 tel: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 51.84 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 5 5 ns ns symmetry or duty cycle 3 sym 45 50 55 % 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 +/- 80 +/-100 ppm gain transfer (see figure 3) positive ppm/v control voltage leakage current i vcxo 1 ua control voltage bandwidth (-3db) bw 10 khz package size 5.0x3.2x1.5 mm 1. a 0.01uf and a 0.1uf capacitor should be located as close to the supply as possible (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 for ttl and vs=2.5 v for cmos, 5 volt operation, and vs=1.65v for 3.3 volt operation. 4. load capacitor will depend on frequency. figure 1. output waveform figure 2. typical output test conditions (25 5c) 80 % vs 20 % t f t r period 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 166 glover avenue, norwalk ct 06856-5160 tel: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 3 gnd ground 4 f o output frequency 5 cmos/ttl 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 166 glover avenue, norwalk ct 06856-5160 tel:1-88-vectron-1 e-mail: vectron@vectron.com absolute maximum ratings stresses in excess of the absolute maximum ratings can permanently 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 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. frequency pull vers us control voltage, 35.328mhz output, 3.3 volt supply -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 166 glover avenue, norwalk ct 06856-5160 tel:1-88-vectron-1 e-mail: vectron@vectron.com reliability the vc-800 is capable of meeting the 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 model. 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 figure 4. suggested ir profile time(s) temperature(c)
vc-800 voltage controlled crystal oscillator vectron international 166 glover avenue, norwalk ct 06856-5160 tel:1-88-vectron-1 e-mail: vectron@vectron.com standard frequencies 4.096 8.192 12.960 13.500 16.000 16.384 17.664 25.920 27.000 32.000 32.768 35.328 44.736 51.840 other frequencies may be available upon request ordering information vc?800-k a c - g f n ? xx.xxx product family frequency ( mhz ) vc=vcxo future use n: n/a package symmetry , tri-state 800: 5.0 x 3.2 x 1.5 mm f: 50/50 +/- 5%, pin #2 absolute pull range input g: 50 k: 5.0v ( 10%) n: 80 l: 3.3v ( 10%) h: 100 temperature range output c: 0 to 70 c a: cmos f: -40 to 85 c note: not all combinations of options are available. www.vectron.com 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 a ccompany the sale of any such product(s) or information. vc-800.doc (revision date: (30aug01) for additional information, please contact: usa: vectron international 166 glover avenue, norwalk, ct 06856 tel: 1-88-vectron-1 fax: 1-888-fax-vectron europe: in denmark, finland, ireland, israel, norway, spain, uk: tel: 442 3807 65 205 fax: 442 3807 66 822 in austria,belgium,france,germany,italy, luxenburg,netherlands,sweden,switzerland:tel: 49(0)7263 6480 fax:49(0)7263 6196 asia: in china, taiwan, japan: tel: 01 603 598 0070 fax: 01 603 598 0075 in korea, singapore, australia, india: tel: 01 203 853 4433 fax: 01 203 853 1423
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