VTM3 Data Sheet

Vectron International 267 Lowell Rd, Hudson NH 03051

Tel: 1-88-VECTRON-1

e-mail: vectron@vectron.com

Figure 2. Clipped Sine Wave Output

VCXO Functional Description

VCXO Feature: The VTM3 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 a high impedance input, 0.5 Mohm,

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 VTM3 will not be used in a PLL, or the output frequency

does not fine tune adjustments, the best device to use would be a VTM3-x0xx. 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 (pin 1 can be left open but should not be set to a voltage such as the supply).