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

No Connect (VTD3-x0xx) or VCXO Control Voltage

2

GND

Electrical and Case Ground

3

Output Frequency

4

Supply Voltage

Figure 1, Package drawing and Pad Layout

VTD3-XXXX

VTD3

Frequency

Date Code