Surface Mount Oscillator

ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK

Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk

Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to

discontinue any product or make design changes we believe necessary.

Issue 1

§ Designed For Gigabit Ethernet Applications

§ Very Low Phase Jitter

§ Miniature Ceramic Package

§ SMD Tri-state Oscillator

§ Industrial Temperature Range Available

§ EMI Shielded

ECM VFAC3 Series

Environmental & Mechanical

Mechanical

Shock

Mil STD 202 Method 213

Cond E

Thermal

Shock

Mil STD 883 Method 1011

Cond A

Vibration

MIL-STD-883 Method 2007

Cond A

Soldering

Condition

260

230

Hermetic

Seal

Leak rate less than 5x10

-8

Atm.cc/s of helium

Pin

1

2

3

4

Function

Tristate

GND/ Case

O/P

Vcc

A

B

C

D

E

F

G

H

7.70

5.20

2.29

1.14

5.08

1.27

3.98

1.39

Part Numbering: VFAC3 B H L 1 125.0M

Series

Stability

S= 20ppm A= 25ppm

B= 50ppm Blank = 100ppm

Symmetry

HH=52.5/37.5 H= 45/55

Blank= 40/60

Supply Voltage L=3.3 Blank = 5V

Temperature Range

Blank= 0

1= -40

Frequency

Dimensions in mm

Parameter

VFAC3

Frequency Range

80.0MHz to 160.0MHz

Frequency

Stability

+/-100ppm

Supply Voltage

5V +/-5%

3.3V +/-5%

Standard

Option

Supply Current

60mA max

Frequency and load dependant

15pf Load

Load

10TTL gates or 50pF AC Coupled

50R Termination recommended

Duty Cycle

40 / 60 or 45/55

Specify

Rise & Fall Times

1.5nS max

Logic “1” Level

0.9Vcc min

Logic “0” Level

0.1Vcc max

Enable Input

Disable Input

Input HIGH (>2.5V) or floating ACTIVE

Input LOW (<0.5V) INFINITE IMPEDANCE

Start-up Time

10mS max

2mS Typ

Phase Jitter

1pS max

Enable Disable

Time

100nS

10nS available

Specify

Operating Temp

0