OX-305 at 100 MHz

Ultra Low Phase Noise

Oven Controlled Crystal Oscillator

Vectron International • 267 Lowell Road, Unit 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com

• -135 dBc/ Hz at 100 Hz offset

• -178 dBc/Hz at 100 kHz offset

• 100 MHZ standard, other frequencies available

• Compact 0.8” x 0.8” hermetic enclosure

• Military Radar

• Instrumentation and Test Equipment

• Synthesizers

• Military Communication Equipment

• DRO reference

• Satellite Communications

Features

Applications

OX-305

Performance Specifications

The OX-305 is an Ultra Low Phase Noise Ovenized Crystal Oscillator with a noise floor as low as -178 dBc/Hz in a compact 0.8” x 0.8”

enclosure. Designed for applications that demand extremely low noise sources, including the reference oscillator for a phase-locked

loop in the microwave spectrum. Custom frequencies available upon request.

OX-305

Phase Noise Ordering Codes at 100 MHz

Frequency Offset (Hz)

A

B

C

Unit

Condition

10

-100

-102

-105

dBc/Hz

Maximum values

All EFC settings

Static Environment

100

-130

-132

-135

dBc/Hz

1000

-150

-156

-159

dBc/Hz

10,000

-165

-168

-170

dBc/Hz

100,000

-175

-175

-178

dBc/Hz

Frequency Stabilities at 100 MHz

Parameter

Min

Typical

Max

Unit

Condition

vs. operating temperature range

-100

+100

ppb

-20 to +70°C (referenced to +25°C)

-200

+200

ppb

-40 to +85°C (referenced to +25°C)

Allan Deviation

1

E-11

0.1 to 1 second tau

vs. supply voltage change

-10

+10

ppb

±5% change in voltage

vs. load change

-10

+10

ppb

±5% change in load

vs. aging / 1 day

-5

+5

ppb

after 30 days of operation

-200

+200

ppb

after 30 days of operation

vs. aging / 10 year

-1.5

+1.5

ppm

after 30 days of operation

Warm up time

5

minutes

to ±100 ppb of 2-hour frequency

@+25°C