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VT-800
Temperature Compensated Crystal Oscillator Previous Vectron Model VTC4
VT-800
Description
Vectron's VT-800 Temperature Compensated Crystal Oscillator (TCXO) 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, hermetically sealed 3.2x5 ceramic package.
Features
* * * * * * Clipped Sine Wave Output Output Frequencies to 40 MHz Fundamental Crystal Design Optional VCXO Function available Gold over nickel contact pads Hermetically Sealed Ceramic SMD package * * * * * *
Applications
Wireless Communications Base Stations Point to point radios Broadband Access Test Equipment Handsets
* Product is compliant to RoHS directive and fully compatible with lead free assembly
Block Diagram
VDD Crystal Output
Analog Temperature Comp.
Vcontrol or NC
Gnd
Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1 * http://www.vectron.com
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Performance Specifications Specifications
Table 1. Electrical Performance Parameter
Output Frequency, +5V option +2.8, +3.0, +3.3V options Supply Voltage1 Supply Current, 8 to 14.999MHz 15.000 to 25.9999MHz 26.000 to 40.000MHz Operating Temperature, ordering option Stability Over TOP, ordering option Initial Accuracy, "No Adjust" Option Power Supply Stability Load Stability Aging Pull Range, ordering option Control Voltage to reach Pull Range Control Voltage Impedance Output Level Output Load Phase Noise, 10.000MHz 10Hz 100Hz 1kHz 10kHz 100kHz Start Up Time 1. The VT-800 power supply pin should be filtered, eg, a 0.1 and 0.01uf capacitor 2. The Output is DC coupled -91 -116 -137 -149 -150 10 ms
2
Symbol
fO VDD IDD
Min.
10 10
Typ
Max
27 40
Units
MHz V
+2.8, +3.0, +3.3 or +5.0 1.5 2.0 2.5 0/55, -10/60, -20/70, -30/80, -40/85 0.5, 1.0, .5, 2.0, 2.5, 3.0, 4.0, 5.0 1.0 0.2 0.2 1.0
mA
TOP
C ppm ppm ppm ppm ppm/yr ppm V Mohm V
TPR 0.5 1 VO p/p 0.8
5, 8, 10, 12 2.5
10K II 10pF dBc/Hz
Outline Drawing Description
Recommended Pad Layout
1.1 1.4
Frequency Date Code
2.3
3.8 Dimensions in mm
Table 2. Pinout Pin #
1 2 3 4
Symbol
VC GND fo VDD
Function
TCXO Control Voltage or Ground Electrical and Lid Ground Output Frequency Supply Voltage
Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1 * http://www.vectron.com
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VCXO Function
S
VCXO Feature: The VT-800 can be ordered with a VCXO function for applications were it will be used in a PLL, or the output frequency needs fine tune or calibration adjustments. This is a high impedance input , 1Mohm, and can be driven with an op-amp or terminated with adjustable resistors etc. Pin 1 should not be left floating on the VCXO optional device.
"No Adjust" Option: In applications were the VT-800 will not be used in a PLL , or the output frequency does not need fine tune adjustments, the best device to use would be a VT-800-xxx-xxx0. By using the "no adjust" option, the circuit is simplified as Vc does not need to be 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 an RF signal or power supply voltage.
Clipped Sine Wave Output
Phase Noise for a Clipped Sinewave Output
Maximum Ratings
S
Absolute Maximum Ratings and Handling Precautions Stresses in excess of the absolute maximum ratings can permanently damage the device. Functional operation is not implied or any other 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.
Although ESD protection circuitry has been designed into the VT-800, proper precautions should be taken when handling and mounting, VI employs a Human Body Model and Charged Device Model for ESD susceptibility testing and design evaluation. ESD thresholds are dependent on the circuit parameters used to define the model. Although no industry standard has been adopted for the CDM a standard resistance of 1.5kOhms and capacitance of 100pF is widely used and therefor can be used for comparison purposes. Table 3. Maximum Ratings Parameter
Storage Temperature Supply Voltage Control Voltage ESD, Human Body Model ESD, Charged Device Model
Symbol
TSTORE VDD VC
Rating
-55/125 6 0/VDD 1500 1000
Unit
C V V V V
Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1 * http://www.vectron.com
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Table 4. Environmental Compliance Parameter
Mechanical Shock Mechanical Vibration Temperature Cycle Solderability Fine and Gross Leak Resistance to Solvents Moisture Sensitivity Level Contact Pads
Condition
MIL-STD-883 Method 2002 MIL-STD-883 Method 2007 MIL-STD-883 Method 1010 MIL-STD-883 Method 2003 MIL-STD-883 Method 1014 MIL-STD-883 Method 2015 MSL1 Gold over Nickel
S
Suggested IR Profile Devices are built using lead free epoxy and can be subjected to standard lead free IR reflow conditions shown in Table 5. Contact pads are gold over nickel and lower maximum temperatures can also be used, such as 220C. Table 5. Reflow Profile Parameter
PreHeat Time Ts-min Ts-max Ramp Up Time above 217C Time to Peak Temperature Time at 260C Time at 240C Ramp down
The
Reliability IR Reflow
Symbol
ts
Value
200 sec Max 150C 200C 3C/sec Max 150 sec Max 480 sec Max 10 sec Max 60 sec Max 6C/sec Max
RUP tL t25C to peak tP tP2 RDN
Tape & Reel
Table 6. Tape and Reel Information Tape Dimensions (mm)
W 16 F 7.5 Do 1.5 Po 4 P1 8 A 180 B 1.5
Reel Dimensions (mm)
C 13 D 20.2 N 60 W1 16.4 W2 20.4 #/Reel 1000
Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1 * http://www.vectron.com
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Ordering Information
Table 7. Standard Frequencies (MHz)
10.000 15.000 19.200 24.5454 40.000 10.245 16.000 19.440 24.5535 12.504 16.325291 19.6608 24.576 12.800 16.36625 19.680 25.000 13.000 16.367667 19.800 25.600 13.568 16.3683 20.000 26.000 14.000 16.396 20.910 27.000 14.31818 16.800 21.250 27.456 14.4844 17.500 23.104 28.800 14.7456 18.414 24.000 32.768
VT-800- E F G - 206A- xxMxxxxxxx
Product TCXO Package 3.2x5 Ceramic Voltage Options D: +5.0 Vdc 5% E: +3.3 Vdc 5% F: +3.0 Vdc 5% G: +2.8 Vdc 5% Output F: Clipped Sine Wave Temp Range R: 0 /55C K: -10/60C J: -20/70C G: -30/80C E: -40/85C Frequency in MHz Tuning 0: Fixed, No tuning A: 5ppm B: 8ppm C: 10ppm D: 12ppm Stability 507: 0.5ppm 106: 1ppm 156: 1.5ppm 206: 2.0ppm 256: 2.5ppm 306: 3.0ppm 356: 3.5ppm 406: 4.0ppm 506: 5.0ppm
*Note: not all combination of options are available. Other specifications may be available upon request.
Example: VT-800-EFG-206A-26M0000000
For Additional Information, Please Contact
USA:
Vectron International 267 Lowell Road Hudson, NH 03051 Tel: 1.888.328.7661 Fax: 1.888.329.8328
Europe:
Vectron International Landstrasse, D-74924 Neckarbischofsheim, Germany Tel: +49 (0) 3328.4784.17 Fax: +49 (0) 3328.4784.30
Asia:
Vectron International 1F-2F, No 8 Workshop, No 308 Fenju Road WaiGaoQiao Free Trade Zone Pudong, Shanghai, China 200131 Tel: 86.21.5048.0777 Fax: 86.21.5048.1881
Disclaimer
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. Rev: 1/10/2009
Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1 * http://www.vectron.com
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