Vectron International 267 Lowell Road, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
VTD3 series
Voltage Controlled Temperature Compensated Crystal Oscillator
The VTD3, VCTCXO
Features
CMOS Output
Output Frequencies to 61.440 MHz
Fundamental Crystal Design
Optional VCXO function available
Product is compliant to RoHS directive
Applications
Wireless Communications
Base Stations
Point to point radios
Broadband Access
Test Equipment
Description
Vectron’s VTD3 Temperature Compensated
Crystal Oscillator (TCXO) is a quartz stabilized,
CMOS squarewave, temperature compensated
oscillator, operating off either 3.3 or 5.0 volt
supply.
VTD3 Data sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
Performance Characteristics
Table 1. Electrical Performance
Parameter Symbol Min Typical Maximum Units
Frequency fO 10.000 61.440 MHz
Supply Voltage 3.3V±5%, 5V±5%
Maximum Supply Voltage 7 VDC
Supply Current,
Output Frequency<22MHz
Output Frequency=>22MHz
IDD
15
24
mA
Output Level 2
Logic High
Logic Low
Drive High
Drive Low
VOH
VOL
IOH
IOL
0.9*VDD
4
0.1*VDD
-4
V
V
mA
mA
Output Load 15pf
Duty Cycle, @ 50% 40/60 %
Control Voltage Impedance ZVc 100 Kohm
Control Voltage to reach pull, 5V option
3.3 V option 0.5
0.3 4.5
3.0 V
Pull Range
Ordering option, see last page TPR ±5, ±8, ±10, ±15 ppm
Temperature Stability
Ordering option, see last page. ±1.0 to ±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/year
Operating temperature
Ordering option, see last page 0/55, -10/60, -20/70, -30/75, -40/85 °C
Phase Noise, 10.000MHz
10 Hz offset
100 Hz offset
1 kHz offset
10 kHz offset
100 kHz offset
-107
-138
-148
-152
-154
dBc/Hz
Start-up time 10 ms
1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended.
2. Output is DC coupled.
VTD3 Data sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
VCXO Functional Description
VCXO Feature: The VTD3 can be ordered with a VCXO function for applications where it will be used in
a PLL, or the output frequency needs fine tune adjustments. This is high impedance input, 100 kohm, 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 devices.
“No Adjust” Feature: In applications where the VTD3 will not be used in a PLL, or the output frequency
does not need fine tune adjustments, the fixed TCXO/VTD3-x0xx is the best option. By using the “no
adjust” option, the circuit is simplified as Vc does not need to adjusted or set to a predetermined voltage.
Pin 1 can be grounded to reduce the risk of adding noise into the circuit.
Outline Diagrams, Pad Layout and Pin Out
Table 2. Pinout
Pin # Symbol Function
1 N/C or VC No Connect (VTD3-x0xx) or VCXO Control Voltage
2 GND Electrical and Case Ground
3 fO Output Frequency
4 VDD Supply Voltage
Figure 1, Package
drawing and Pad Layout
VTD3-XXXX
2.0 mm
(max)
VTD3
Frequency
Date Code
VTD3 Data sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
A
E
C
D
B
GFJ
LI
KH
Tape and Reel
Table 3. Tape and Reel Dimensions (mm)
Tape Dimensions Reel Dimensions # Per
Product A B C D E F G H I J K L Reel
VTD3 24 11.5 1.5 4 12 2 21 13 80 2 25.5 255 1K
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 4. Absolute Maximum Ratings
Parameter Symbol Ratings Unit
Storage Temperature Tstorage -40/85 °C
Reliability
The VTD3 qualification tests have included:
Table 5. Environnemental Compliance
Parameter Conditions
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
Gross and Fine Leak MIL-STD-883 Method 1014
Resistance to Solvents MIL-STD-883 Method 2015
Handling Precautions
Although ESD protection circuitry has been designed into the VTD3, proper precautions should be taken
when handling and mounting. VI employs a Human Body Model and a Charged-Device Model (CDM) for
VTD3 Data Sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail vectron@vectron.com
5
ESD susceptibility testing and design protection 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 6. ESD Ratings
Model Minimum Conditions
Human Body Model 1000 MIL-STD-883 Method 3015
Charged Device Model 500 JESD 22-C101
Suggested IR profile
Table 7 shows max temperatures and lower peak temperatures can also be used e.g. peak temperature
of 230-240°C. The VTD3 should not be subjected to a wash process that will immerse it in solvents – a
no clean process is recommended.
Table 7. Reflow Profile
Parameter Symbol Value
PreHeat Time t S 60 sec Min, 180 sec Max
Ramp Up R UP 3
oC/sec Max
Time Above 217 oC t L 60 sec Min, 150 sec Max
Time To Peak Temperature t AMB-P 480 sec Max
Time At 260 oC (max) t P 6 sec Max
Time At 240 °C (max) tp2 60 sec Max
Ramp Down R DN 6
oC/sec Max
VTD3 Data Sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail vectron@vectron.com
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Ordering Information
Table 8. Standard Frequency List
10.00 11.00 12.288 12.352 12.50 12.80 13.00 14.31818
14.40 15.36 16.384 16.80 19.20 19.44 19.6608 19.68
20.00 26.88 27.00 32.00 32.768 44.00 44.736 50.000
VTD3 - -
Product Family Output Frequency
TCXO, 9.6 x 11.5 In MHz
Voltage Options Temperature Options
H: +5.0 Vdc ±5% A: 0 to 55°C
J: +3.3 Vdc ±5% B: -10 to 60°C
C: -20 to 70°C
Pulling Range D: -30 to 75°C
0: Fixed TCXO, no adjust E: -40 to 85°C
1: ±5ppm
2: ±8ppm Stability Options
3: ±10ppm 1: ±1.0ppm
4: ±15ppm B: ±1.5ppm
2: ±2.0ppm
C: ±2.5ppm
3: ±3.0 ppm
4: ±4.0ppm
5: ±5.0ppm
Note: Not all combinations are availabl e
www.vectron.com
September 23 2009
For Additional Information, Please Contact:
USA: Vectron International 267 Lowell Road, Hudson, NH 03051
Tel: 1-88-VECTRON-1 Fax: 1-888-FAX-VECTRON
EUROPE: Landstrasse, D-74924, Neckarbischofsheim, Germany
Tel: 49 (0) 7268 8010 Fax: 49 (0) 7268 801281
ASIA: Vectron Asia Pacific Sales 1F~2F. No.8 Workshop No.308 Fenju Rd.,
WaiGaoQiao Free Trade Zone, Pudong New Area Shanghai, China 200131
•Tel: 8621 50480777 • Fax: 8621 50481881
J 0 C 10M00
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