Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
VT-501
Temperature Compensated Crystal Oscillator
Previous Vectron Model VTD3
Vectron’s VT-501 Temperature Compensated Crystal Oscillator (TCXO) is a quartz stabilized, CMOS output, analog temperature
compensated oscillator, operating o either 3.3 or 5.0 volt supply, 9.9x11.8 FR4 board with a nickel cover.
CMOS Output•
Output Frequencies to 61.440 MHz •
Fundamental Crystal Design •
Optional VCXO Function available•
Gold over nickel contact pads •
Hermetically Sealed Ceramic SMD package•
Product is compliant to RoHS directive •
and fully compatible with lead free assembly
Wireless Communications•
Base Stations•
Point to point radios•
Broadband Access•
Test Equipment•
Features Applications
Block Diagram
Description
VT-501
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VDD Output
Vcontrol or NC Gnd
Analog
Temperature
Comp.
Crystal
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Description
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Performance Speci cations
Table 1. Electrical Performance
Parameter Symbol Min. Typ Max Units
Output Frequency fO8 61.440 MHz
Supply Voltage1VDD +3.3 or +5.0 V
Supply Current, 8-22MHz
>22MHz
IDD 15
24
mA
Operating Temperature, ordering option TOP 0/55, -10/60, -20/70, -30/80, -40/85 °C
Stability Over TOP
, ordering option ±1.0, ±1.5, ±2.0, ±2.5, ±3.0, ±4.0, ±5.0 ppm
Initial Accuracy, “No Adjust” Option ±2.0 ppm
Power Supply Stability ±1.0 ppm
Load Stability ±0.3 ppm
Aging ±1.0 ppm/yr
Pull Range TPR ±5, ±8, ±10, ±12, ±15 ppm
Control Voltage to reach Pull Range, 5V
3.3V option
0.5
0.3
4.5
3.0
V
Control Voltage Impedance 100 kohm
Output Level2
Output High
Output Low
Output High Drive
Output Low Drive
VOH
VOL
IOH
IOL
0.9*VDD
4
0.1*VDD
-4
V
V
mA
mA
Output Load 15 pF
Duty Cycle 40/60 %
Phase Noise, 10.000MHz
10Hz
100Hz
1kHz
10kHz
100kHz
-107
-138
-148
-152
-154
dBc/Hz
Start Up Time 10 ms
1. The VT-501 power supply pin should be  ltered, eg, a 0.1 and 0.01uf capacitor
2. The Output is DC coupled
3. Duty Cycle is On Time/Period, see Figure 2. Test Circuit is shown in Figure 1.
Table 2. Pinout
Pin # Symbol Function
1V
CTCXO Control Voltage or Ground
2 GND Electrical and Lid Ground
3f
oOutput Frequency
4V
DD Supply Voltage
Speci cations
Outline Drawing Recommended Pad Layout
Dimensions in mm
1.4
2.2
11.8
9.9
7.62
1.3±0.1
1.2±0.1
0.7
Frequency
Date Code
1.4
1.9
8.4
7.62
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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VCXO Feature: The VT-501 can be ordered with a VCXO function for applications were it will be used in a PLL, or the output frequency
needs  ne 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  oating on the VCXO optional device.
“No Adjust” Option: In applications were the VT-501 will not be used in a PLL , or the output frequency does not need  ne tune
adjustments, the best device to use would be a VT-501-xxx-xxx0. By using the “no adjust” option, the circuit is simpli ed 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.
S
Figure 3 Phase Noise Plot for a 10.000MHz output
VCXO Function
Phase Noise and Alan Deviation Plot
Test Circuit
IDD
VDD
VC
IC15pF
4
12
3
.1μF .01μF
+
-
+
-
tRtF
VOH
VOL
50%
On Time
Period
Figure 1 Test Circuit Figure 2 Duty Cycle, On Time/Period
Figure 4 Alan Deviation Plot for a 10.000MHz output
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page4
Reliability
The
Table 4. Environmental Compliance
Parameter Condition
Mechanical Shock MIL-STD-883 Method 2002
Mechanical Vibration MIL-STD-883 Method 2007
Temperature Cycle MIL-STD-883 Method 1010
Solderability MIL-STD-883 Method 2003
Fine and Gross Leak
Fine and Gross Leak MIL-STD-883 Method 1014
Resistance to Solvents MIL-STD-883 Method 2015
Moisture Sensitivity Level
Moisture Sensitivity Level MSL1
Contact Pads Gold over Nickel
Table 5. Re ow Pro le
Parameter Symbol Value
PreHeat Time ts
Ts-min
Ts-max
200 sec Max
150°C
200°C
Ramp Up RUP 3ºC/sec Max
Time above 217C tL150 sec Max
Time to Peak Temperature t25-PEAK 480 sec Max
Time at 260C
Time at 260C tP10 sec Max
Time at 240C tP2 60 sec Max
Ramp down
Ramp down RDN 6ºC/sec Max
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 a ect device reliability.
Although ESD protection circuitry has been designed into the VT-501, 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 de ne 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.
S
Suggested IR Pro le
Devices are built using lead free epoxy and can be subjected to standard lead free IR re ow conditions shown in Table 5. Contact
pads are gold over nickel and lower maximum temperatures can also be used, such as 220C.
S
Table 3. Maximum Ratings
Parameter Symbol Rating Unit
Storage Temperature TSTORE -40/85 ºC
Supply Voltage VDD 7V
Control Voltage VC0/VDD V
ESD, Human Body Model 1000 V
ESD, Charged Device Model 500 V
Maximum Ratings
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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Table 6. Tape and Reel Information
Tape Dimensions (mm) Reel Dimensions (mm)
W F Do Po P1 A B C D N W1 W2 #/Reel
24 11.5 1.5 4 16 330 2 13 21 80 24.4 28.4 1000 or
2000
IR Re ow
Tape & Reel
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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Table 7. Standard Frequencies (MHz)
8.750 9.83040 10.000 10.230 11.000 12.28880 12.3520 12.500 12.800 13.000
14.318180 14.400 15.360 16.3840 16.800 18.4140 19.200 19.440 19.6608 19.680
20.000 21.400 24.9770 25.1658240 25.600 26.880 27.000 30.080 30.720 32.000
32.7680 37.800 38.400 44.000 44.7360 46.000 46.080 48.000 50.000 56.000
61.440 62.880
Ordering Information
Example: VT-501-EAG-206A-19M2000000
Ordering Information
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: 01/10/2009
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
VT-501- E A G - 206 A - xxMxxxxxxx
Product
TCXO
Voltage Options
D: +5.0 Vdc ±5%
E: +3.3 Vdc ±5%
Output
A: CMOS
Stability
106: ±1ppm
156: ±1.5ppm
206: ±2.0ppm
256: ±2.5ppm
306: ±3.0ppm
356: ±3.5ppm
406: ±4.0ppm
506: ±5.0ppm
Frequency in MHz
*Note: not all combination of options are available.
Other speci cations may be available upon request.
Temp Range
R: 0 /55°C
K: -10/60°C
J: -20/70°C
G: -30/80°C
E: -40/85°C
Tuning
0: Fixed, No tuning
A: ±5ppm
B: ±8ppm
C: ±10ppm
D: ±12ppm
E ±15ppm
Package
9.9x11.8 FR4