Vectron International 267 Lowell Road, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
VTC1 series
Voltage Controlled Temperature Compensated Crystal Oscillator
The VTC1, VCTXCO
Features
Clipped Sine Wave or Square Wave Output
Output Frequencies to 40 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
Applications
Wireless Communications
Base Stations
Point to point radios
Broadband Access
Test Equipment
Handsets
Description
Vectron’s VTC1 Temperature Compensated
Crystal Oscillator (TCXO) is a quartz stabilized,
clipped sinewave output or CMOS squarewave,
temperature compensated oscillator, operating off
either 2.8, 3.0, 3.3 or 5.0 volt supply.
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
Performance Characteristics
Table 1. Electrical Performance for the Clipped Sine Wave Output Option
Parameter Symbol
Min Typical Maximum Units
Frequency fO 10.000 40.000 MHz
Typical Supply Voltage
Ordering option, see last page 2.8V, 3.0V, 3.3V or 5.0V
Supply Current
10.000 MHz to < 15.000 MHz
15.000 MHz to < 26.00 MHz
26.000 MHz to 40.000 MHz
IDD
1.5
2.0
2.5
mA
Output Level 2 Vp/p 0.8 V
Output Load 10K II 10pf
Control Voltage Impedance ZVc 1 Mohm
Control Voltage to reach pull
All options (5.0, 3.3,3.0 and 2.8V)
0.5
2.5 V
Pull Range
Ordering option, see last page TPR ±5, ±8, ±10, ±15 or ±20 ppm
Temperature Stability
Ordering option, see last page. ±0.5 to ±5.0 ppm
Initial Accuracy, “No Adjust” option ±0.5 ppm
Power Supply Stability ±0.2 ppm
Load Stability ±0.2 ppm
Aging ±1.0 ppm/year
Operating temperature
Ordering option, see last page 0/55, -10/60, -20/70, -30/80, -40/85 °C
Phase Noise, 12.800 MHz
10 Hz offset
100 Hz offset
1 kHz offset
10 kHz offset
100 kHz offset
-85
-115
-130
-143
-152
dBc/Hz
Start-up time 2 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 AC coupled.
VTC1 Data sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
Table 2. Electrical Performance for the CMOS Output Option
Parameter Symbol
Min Typical Maximum Units
Frequency fO 10.000 40.000 MHz
Supply Voltage 3.3V±10% VDC
Maximum Supply Voltage 7 VDC
Supply Current IDD 10.0 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% 45/55 %
Control Voltage Impedance ZVc 100 Kohm
Control Voltage to reach pull 0.5 2.5 V
Pull Range
Ordering option, see last page TPR ±5, ±8, ±10 ppm
Temperature Stability
Ordering option, see last page. ±0.5 to ±5.0 ppm
Initial Accuracy, “No Adjust” option ±0.5 ppm
Power Supply Stability ±0.3 ppm
Load Stability ±0.2 ppm
Aging ±1.0 ppm/year
Operating temperature
Ordering option, see last page 0/55, -10/60, -20/70, -30/80, -40/85 °C
Phase Noise, 12.800MHz
10 Hz offset
100 Hz offset
1 kHz offset
10 kHz offset
100 kHz offset
-93
-123
-147
-155
-158
dBc/Hz
Start-up time 2 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.
VTC1 Data sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
Figure 1. Typical Phase Noise Plot, Clipped Sine Wave
Figure 2. Clipped Sine Wave Output
VTC1 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 VTC1 can be ordered with a VCXO function for applications were it will be used in a
PLL, or the output frequency needs fine tune adjustments. This is high impedance, 1 Mohm, input 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 were the VTC1 will be not be used in a PLL, or the output frequency
does not fine tune adjustments, the best device to use would be a VTC1-x0xxx. By using the “no adjust”
option, the circuit is simplified as Vc does not need to adjusted or set to a predetermined voltage and pin 1
should be grounded or left open (but not set to a voltage such as the supply).
Outline Diagrams, Pad Layout and Pin Out
Table 3. Pinout
Pin # Symbol Function
1 N/C or
VC No Connect (VTC1-x0xx)
or VCXO Control Voltage
2 GND Electrical and Case Ground
3 fO Output Frequency
4 VDD Supply Voltage
NOTE: Additional pads are used to program and adjust the TCXO during manufacturing and should be left
open; do not terminate these to the supply voltage. Some designs do not include these additional pads.
Contact Pads are gold over nickel
Figure 3, Package drawing
VTC1 Data sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
A
E
CD
B
GFJ
LI
KH
Tape and Reel
Table 4. Tape and Reel Dimensions (mm)
Tape Dimensions Reel Dimensions # Per
Product A B C D E F G H I J K L Reel
VTC1 16 7.5 1.5 4 8 1.5 20.2 13 60 2 16.4 180 1000
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 5. Absolute Maximum Ratings
Parameter Symbol Ratings Unit
Storage Temperature Tstorage -55/125 °C
Reliability
The VTC1 qualification tests have included:
Table 6. 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
VTC1 Data Sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail vectron@vectron.com
7
Handling Precautions
Although ESD protection circuitry has been designed into the the VTC1, 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 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 7. ESD Ratings
Model Minimum Conditions
Human Body Model 1000 MIL-STD-883 Method 3115
Charged Device Model 1500 JESD 22-C101
Suggested IR profile
Devices are built using lead free epoxy and can also be subjected to standard lead free IR reflow conditions,
Table 7 shows max temperatures and lower temperatures can also be used e.g. peak temperature of 220C.
Table 8. Reflow Profile (IPC/JEDEC J-STD-020B)
Parameter Symbol Value
PreHeat Time t S 150 sec Min, 200 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 10 sec Max
Time At 240 °C (max) tp2 60 sec Max
Ramp Down R DN 6 oC/sec Max
VTC1 Data Sheet
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail vectron@vectron.com
8
Ordering Information
Table 9. Standard Frequency List
10.000 10.0001355 10.001355 10.240 10.245 12.250 11.0592 11.2896
12.000 12.288 12.352 12.500 12.504 12.580 12.582912 12.600
12.688375 12.800 13.000 13.560 14.000 14.318 14.400 14.500
14.5888 14.617188 14.7456 14.850 15.000 15.359865 15.360 16.000
16.034950 16.320 16.3676 16.367667 16.36770 16.384 16.368 16.580
16.777216 16.800 17.500 18.000 18.414 18.432 18.601 19.000
19.200 19.440 19.680 19.800 20.000 20.250 20.480 20.91646
21.250 22.000 22.368 23.090 24.000 24.5535 24.576 24.8064
25.000 25.48828 26.000 32.000 33.000 38.400 40.000
VTC1 - -
Product Family Output Frequency
TCXO, 5x7 In MHz
Voltage Options Temperature Options
A: +5.0 Vdc ±5%, Clipped Sine Output A: 0 to 55°C
B: +3.3 Vdc ±5%, Clipped Sine Output B: -10 to 60°C
C: +3.0 Vdc ±5%, Clipped Sine Output C: -20 to 70°C
D: +2.8 Vdc ±5%, Clipped Sine Output D: -30 to 80°C
J: +3.3 Vdc ±10%, CMOS Output E: -40 to 85°C
Pulling Range
0: Fixed TCXO, no adjust Stability Options
1: ±5ppm A: ±0.5ppm
2: ±8ppm 1: ±1.0ppm
3: ±10ppm B: ±1.5ppm
4: ±15ppm 2: ±2.0ppm
5: ±20ppm C: ±2.5ppm
3: ±3.0 ppm
Note: Not all combinations are available: D: ±3.5ppm
±0.5 ppm is available over 0 to 55 °C only 4: ±4.0ppm
±1.0 ppm to ±5.0 ppm is available on all temperature ranges 5: ±5.0ppm
www.vectron.com
January 10, 2006
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
B
0 C 10M000
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