VECTRON TECHNOLOGIES oiler INCORPORATED Data Sheet February 1996 S-Type Fixed and Voltage Controlled Crystal Oscillator ~ \ The S-Type Oscillator PUNL UUTU EVV FOU EVE OES UGE FT NETO BUSHY ~ \. VIF 603-598-0070 Features VCXO or fixed fraquency Surface mountable Small, 6-pin DIP, J-Lead Compatible Laser stamping Choice of lead configurations Machine insertable Stability to 50 ppm Frequencies to 52 MHz TTL or CMOS selectable 3-state output Phase jitter <200 ps Choice of temperature ranges High reliabitity Tape and reel packaging Description The S-Type Crystal Oscillators are quartz-stabilized, TTL or CMOS selectable, square-wave generators. They ate packaged in low-profile, hermatic ceramic, 6-pin DIPs. Lang-term reliability exceeds 20-million hours mean time between failure (MTBF).S-Type Crystal Oscillator Pin information Figure 1. Pin Diagram Table 1. Pin Descriptions Name/Function 4 VCor VCXO: Control Voltage to modulate frequency. ce cee cone NC _.....| Fixed Frequency Oscillator: Do not use Pin 1. 2 ; Tri-state TTL tagic low disables output. TTL logic high or no Po a Co connection enables output frequency. 3. _ GND _Circuit and package ground. 4 _ __ Output Output waveform. __ 5 TTWCMOS *TTL lagic low provides waveform symmetry for CMOS. TTL logic high or no connaction provides waveform symmetry for TTL 6 Vop Supply Voltage, 6 V +10%. This silicon oscillator Is fabricated in CMOS technology and its output waveform will swing between graund and VDD for all but he highest frequency applications. To account for the difference in switching thresholds between TTL logic (1.40 V) and CMOS logic DD/2), tha TTL/CMOS lead modifies the on time of the oscillator for maximum symmetry about the TTL or CMOS logic thresh- bid. TT. logic low providas waveform.symmotry for CMOS. TTL fogic high or no connection provides waveform symmatry for TTL. Ar output frequencies lese than 12 MHz, this option is not provided as the waveform transition times are smail campaed to the peri- pd. Hance, for fo < 12 MHz, this pin should be graundad for electrical isotation. I } andling Precautions Althodgh protection circuitry has! been designed into this mode. Although no industry-wide standard has Hevice, proper precautions should be taken to avoid expo- been adopted for the COM, a standard HEM (resis- Bure to tectrastatic discharge (ESD) during handling and tance = 15000, capacitance = 100 pF) is widely used aunting. VTl employs a human-body model (HBM) and a and therefore can be used for comparison purposes. charged-devica madel (CDM) for ESD-susceptibility testing The HBM ESD threshold presented hare was and protection design evalustion. ESD voltage thresholds obtained by using thase circuit parameters. are dependent on the circuit parameters used ta define the able 2. ESD Threshold Voltage ESD Threshold, Minimum Human Body 1500* Charged Device | 1500 * MIL-STD-883D, Method 3015, Class 1 2 VTI 603-598-0070S-Type Crystal Oscillator Electrical Specifications 3 se Lee. $ AV - aw Rw oe eh ae OLE te hn ee ee ee ee ee oe ral * Includes probe and test jig capacitance. Figure 2. Output Waveform Figure 3. Output Test Conditions (TAmb = 25 =5 C} a) (> AL ba | | a 5 Nyaa fe nn 9 a = o an [ak in ~ .. Table 2. General Electrical Specifications WARNING: Unit will be severely damaged if placed in backwards. Parameter Supply Voltage Vop Supply Current (Frequency Dependent) lpn d|~S~**S 2 Faguirns | ma Chan Ghee Lee OD CAE Vi |. _ pee fp Output Logie High Vou 4.00 - Vv Output Logic Low Vo. - 0.50 Vv > Transition Times | ee oe Rise Time tra 1.0 5.0 ns Fak Time te 1.0 5.0 ns Symmetry or Duty Cyde ] sy __ See Figures 14 % Nominal Output Frequency fy 183 He 52 MHz MHz _ Frequency Tolerance (Fixed Frequency Only) [FF See Table 1 ppm t ~~ i 1 AO.1 uF low frequency tantalum bypass capacitor that is paraliel with a 0.01 pF high-fraquancy caramic capacitor ts Y. recommended. t 2 Figura 2 defines these parameters. Figure 2 illustrates the aquivalant five-gate MTTL load and operating conditions under which these paramuyters are specified and tested. 3 Symmetry is the ON TIME/PERIOD with VS = 1.4 V for TTL or VS = 2.5 V for CMOS, per Figure 2. 4 Frequancy tolerance is the maximum frequency deviation, in ppm, from the specified output frequency, fo, including variations dus to temperature, power supply, load, and aging over 20 years. Table 3. VCXO Specifications Paraineter Sea IE Tel Minimum Maximum Unit Control Voltage Vo 0.0 Vop Vv Center Voltage* V6 2.5 + 0.5 Typical V __Leakage Current of Contro! Input ~T Wexo | 9-10 | FG pa __ Control Voltage Bandwidth (3.dB,Vc=2.50V) | BW | 5 | - KHZ * VQ is the controt voltage at which the output fraquoncy, f, is equal to the nominal frequency fo at 25 +5 * C ambient temperature. Vg is set during tuning so that the VCXO works in the center of itz churactoristic curve and is typically near 2.5 V, but may vary depending on temperature, aging, power supply, load, and process variations. 1 | 1 > Sensitivity @ Vc = Vo | ARIAVC See Figures 12, 13 ppmS-Type Crystal Oscillator ~ Cheracteristic Curves | , AF (9pm) SYMMETAY %, (MEASURED AT oo2] 20 0 40 LOAD CAPACITANCE (pF} o 10 Figure 4. Waveform Symmetry vs. Load Capacitance 90 oe rT w 20.48 MHz, Vier: ~ .00 V . 20, Q Vru@v it Vo=5.0V 10 0 mt ~10 -- wee 20 | - cee ~490 20 Q 20 40 60 60 TEMPERATURE ( %) Figure 6, Typical Frequency vs. Temperature 16 4 2b i - By oa . @4 MHz ee eet >, : a - : a 2 @ 4}-~ | Von =5.00v, Ta= 28C, CMOS LOAD I 0 i | LL. Lo i o 7 mm 4 5S LOAD CAPACITANCE (pF) Figure 8. Variatian of Supply Current with Capacitive Load 55 _ nn w 3 53 \ 4 CMOS 15 pF LOAD. Ta = 25"c| ~ 7 Q : | : iu 1 ' iva 51 f- we ene eamninerdbe eee oe a 6.4 MHZ = i , 49 fo. a : E 8 4 82.000 MHz { . a | = #4 t : sie _ = 1 ~ " t 46 - | | i 45 47 4a 54 53 55 POWER SUPPLY (V) Figure 5. Variation of Duty Cycle with Supply Voltage SF (pam) _. _ 4.082 MHz, Ta - 25 C 5.0 Figure 7. Output Frequency vs. Power Supply Voltage a5 SUPPLY CURRENT (mA) 15 10 Figure 9. Supply Current vs. Output Frequency 10 , ] | 15 pF CMOS LOAD, Voo = 5.50 | Ce nee ange MAXIMUM a a : TRIAL, Ta= 25 ; a | 2 a i j i 30 4 sD OUTPUT FREQUENCY (MHz) UTI anawscan.namnp. T Characteristic Curves (continued) 2 c = | CMOS LOAD, Vop=5.00V, a= =25% | ia oY. 8 i eee a pl Qe, > a 6 u w = - rm (4 o - @ 2 2 =< rc - 0 ued 0 10 20 90 40 50 60 LOAD GAPACITANGE (pF) Figure 10. Waveform Transition Times vs. Load Capacitance * 1807-1 Von = 5.00 V.Ta = 25 C, 8.192 MHz| AF (ppm) Q i 2 3 4 & CONTROL VOLTAGE (Ve) Figure 12. Gutput Frequency vs. Control Voltage VTTI 603-598-0070 GAIN (dB) S-lype Urystal Usciuator -BL 7 ale. 1 ||: 2 7 || Vex = 5V. Tae 25 C, \b=250V, 32.768 MHz | I ( : ~12; T hoy mal cub _ sey } Poa y i i 1 0 160 FREQUENCY (kHz) Figure 11. VCXQ input Frequency Response DIFFERENCE (%)* od j J rl Voo = 5.00 V, Ta = 25 C, 8.182 MHz [. GONTROL VOLTAGE (Vc) Figure 13. VCXO Linearity (Deviation From Best Linear Fit}Absolute Pull Range (APR) Parameter Absolute Frequency Pull Range: 7 _Control Voltage, VC =0.50V Control Voltage, VC= 4.50 V Absolute pull range (APR) is specified by tha fourth character of the product code (see Figure 14). The APR is the minimum guaranteed frequency shift from fo over variations in temperature, aging, power supply, and load. Soth frequency and environment timit the specified APR. - Mechanical Characteristics Mechanical and Environmental Symbol aE) Nlax OTT ppm from fo _ ppm from fo ppm from fo With VC between 0.5 V and 4.5 V, total pull range for the S-Type VCXO is typically between 200 ppm and 400 ppm. A50 ppm APR VCXO fully tracks a 50 ppm source oscillator or any other 50 ppm reference over all specified environmental conditions. Mechanical Shock: ..... leek aeeee MIL-STD-883C 2002.3 Test B Mechanical Vibration: . . J vee eneee MIL-STO-883C 2007.1 Test C Solderability:.......... | Leveaeee MIL-STD-883C 2003.5 Gross Leak Test: ....... Jee eeeees MIL-STD-883C 1014.7 Fine Leak Test:..............--- MIL-STD-883C 1014.7 Storage Temperature:........... -65 C to 125C Oscillator Aging Quartz-based oscillators exhibit a change in output frequency with time. Two dominant mechanisms for this phenomena are: changes in the stresses on the quartz resonator and mass-loading of the quartz resonator. Changes in output frequency due to stress are a result of relaxation in the mounting stresses of the quartz resonator or transmittal of environmental! stresses through the mounting arrangement. The S- * Type oscillator contains a state-of-the-art miniature rectangular AT-Cut resonator, rather than the tradi- tional round resonator which allows for a mounting arrangemant that has very little stress relaxation and isolates the quartz resonator from external stresses. Mass-loading of the quartz resonator, which gener- ally drives the frequency lower, i 8 result of out- gassing of materials within a package or a lack of package hermeticity. Higher frequency resonators are more susceptible to this aging mechanism. The S-Type oscillator contains a minimum number of parts internal to the package, a monolithic [C and a quartz resonator, resulting in an internal environ- ment that Is well controlled and characterized. With an application af 40C and under normal can- ditions, the oscillator aging is typically 2ppm the first year, 1 ppm the second year, and continues to loga- rithmiticaly decline avery year thereafter. VT 603-598-0070Outline Diagrams ~w 6-Pih, Ceramic DIP Dimensions are in inches and (millimeters). 0.355 t 0.006 (8.51 10.203) oT 1 STUGLA 16.384 VTI1634 A 0.310 + 0.010 (7.87 + 0.254) . - | 0.1182 0.010 \ (4.78 + 0.284) 0.250 (8.35) AEF A O.13220.010 . 0.030 + 0.010 os \ (0.762 + 0,254) i 90" 0.018 + 0,002 in ee (1.73) MAX (0.487 +0.127) + 0.002 (0.051) Lt 0.400 + 0.005 ~e|}-e-0.010 (0.254) - 0.004 (0.025) | coootam (2.54 + 0.127) es 0127)" 0.046 + 0.005__,. (1.1740.127) THRU HOLE MOUNTING 0.310 + 0.010 0.3104 0.010 _ . >| (7.87 + 0.254) (7.87 10.254) + 0,002 (0.051)__ pil + 0.002 (0.051)! Lg 0.010 (0.254) 0.001 40.025) 0.010 (0.254) 0.001 (0.025) 0.188 0.07+ 0.010 0,188 4: (1.78 + 0.254) (4.78 . Cre ner ot oot e 3 oo7to.010 | .. | (17840254) FF 0.010 (0.254) ote 4 a _ 3? | a_-| 0.053 + 0.005 90 0 0.050 + 0.005 a> (1.270.127) (1.35 0,127) TYP 0.400 0.005 0.010 (0.2 ae (10.16 + 0.127) L LEAD GULL LEAD VTi 603-598-0070 - SPE TTCATRUIGE 1bagg tase we saenmaserce Standard Frequencies* (MHz) 1.024 1.544 2048 3.088 __ 3580 3.6864 __ 4000 4.032 4.096 4.4336 5.000 5.760 6.144 = 6.1768 6.312 6.400 T0728 8.000 6.064 4192 8.448 9.216 10.000 "10.066 10.700 11,000 ~ 11.059 113600 12.000 12,288 12.352 12.500 12.620 12.960 13.000 13.500 14.318 14.745 15.000 15.360 15.552 16.000 gr fasax 16.984 16.500 16.670 "17.784 18432 S~9. 440 Woon 20.000 20.480 21.477 24.000 24.064 24.576 YECHNGLOGES,ING. | 24.704 24.883 __ 26.000 25.175 8=-s25.2260Ss~= GS a rctnen TRATEN, 25.920 26.666 27.000 s27.120.( 8s S=8 32 2 LO Nero + FAX (02) S8-007E 30.000 30.072 30.880 32.000 32.768 S=_- 33.000 33.333 34.368 34.695 35.250, 35.280 35.468 35.780 ~_-36.000_ 36.684 _ 37.632_ 38.880 40.000 44.400 | 44.736 48.320 47.852 48.000 50.000 51.840 52.000 * Other frequencies available upan raquast. t i | ~e . 5 rT _U G LA PACKAGE TYPE _ ts L SYMMETRY . A 50.+5% (TTLICMOS| 6-PIN CERAMIC DIP B 50 210% (TTLIGMOS) o s Du LEAD CONFIGURATION - --_ TEMPEHAIUHE RANGE @ STUGLA CODE | T THRU HOLE C QTo 70C 16.384 = CODE a? G GULL WING 1. -40 To B5C vrTriewza |g ___. FREQUENCY A DAIL: YEAH 1996 WEEK 34 FREQUENCY TOLERANCE OF A OUTPUT TYPE ABSOLUTE PULL RANGE BIN | MARK F FIXEO FREQUENCY F #32 pom U voxO G #50 pom L LINEAR N 80 ppm H +100 ppm | Figure 4. Part Numbering Information 1 Not all combinations are possible. Other specifications may be availabla upan request. 2 Frequency: in MHZiwith decimal point. in HZ if no decimal is present. 3 10% linearity, s25P7M stability at Ve=2.5V, available in limited frequencies. | | a . . For additional information call: 1 VECTRONAN Vectron Technologies, Inc. vEG TRON 267 Lowell Road Hudson, NH 03051 INCORPORATED te. 1603) 598-0070 Fax: (603) 598-0075 atin Vectron Tachnologies Inc. rasarves the right to make changes to the productla} ar information contained hersin without notica. No liability ix assumed as a result of oe thair usa of application. No rights under any patent accompany tho saic of any such product(s) or information. Printad in the U.S.A. VTi 603-598-0070