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PDF VTC2 Data sheet ( Hoja de datos )
| Número de pieza | VTC2 | |
| Descripción | Voltage Controlled Temperature Compensated Crystal Oscillator | |
| Fabricantes | Vectron International | |
| Logotipo |  |
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VTC2 series
Voltage Controlled Temperature Compensated Crystal Oscillator
Features
• CMOS Square Wave Output
• Enable Disable Feature
• Output Frequencies to 30 MHz
• Fundamental Crystal Design
• Optional VCXO function available
• Gold over nickel contact pads
• Hermetically Sealed Ceramic SMD package
The VTC2, VCTXCO
• Product is compliant to RoHS directive
and fully compatible with lead free assembly
Applications
• FPGA’s
• A/D’s
• DSL Head End
• Wireless Communications
• Base Stations
• Point to point radios
• Broadband Access
• Test Equipment
Description
Vectron’s VTC2 Temperature Compensated
Crystal Oscillator (TCXO) is a quartz stabilized,
CMOS squarewave, temperature compensated
oscillator, operating off either 2.8, 3.0, 3.3 or 5.0
volt supply.
Vectron International 267 Lowell Road, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail: [email protected]
1 page  
VTC2 Data Sheet
Handling Precautions
Although ESD protection circuitry has been designed into the the VTC2, 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 6. ESD Ratings
Model
Human Body Model
Charged Device Model
Minimum
1500
1000
Conditions
MIL-STD-883 Method 3115
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 7. Reflow Profile (IPC/JEDEC J-STD-020B)
Parameter
Symbol
PreHeat Time
tS
Ramp Up
Time Above 217 oC
Time To Peak Temperature
Time At 260 oC (max)
Time At 240 °C (max)
Ramp Down
R UP
tL
t AMB-P
tP
tp2
R DN
Value
150 sec Min, 200 sec Max
3 oC/sec Max
60 sec Min, 150 sec Max
480 sec Max
10 sec Max
60 sec Max
6 oC/sec Max
Vectron International 267 Lowell Rd, Hudson NH 03051 Tel: 1-88-VECTRON-1 e-mail [email protected]
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet VTC2.PDF ] | |
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