TCXO-800-FFR-206 datasheet, PDF

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TCXO-800-FFR-206: DescriptionTemperature Compensated Crystal Oscillator; File Size218KB，5 Pages; ManufacturerVectron International, Inc.; Websitehttp://www.vectron.com/

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TCXO-800-FFR-206 Overview

Temperature Compensated Crystal Oscillator

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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

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

Page1

VCXO Function

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

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

STORE

Rating

-55/125

0/V

1500

1000

Unit

ºC

Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com

Page3

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