EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

Tel: +44 1460 230000 Fax: +44 1460 230001 email: info@euroquartz.co.uk web: www.euroquartz.co.uk

SURFACE-MOUNT OSCILLATORS

·

Suitable for Vapour-Phase, Infrared or Epoxy mount techniques

·

TTL or CMOS compatible

·

Low power consumption

·

Optional Tristate or Standby functions

·

Low EMI emission

·

Supply Voltage 3.3 Volts or 5.0 Volts

·

High shock resistance

·

Full military testing available

·

Hermetically sealed ceramic package

XO95 SERIES

OUTLINES AND DIMENSIONS

6.5mm x 5.0mm

High-Specification Oscillator

POWER DOWN vs. TRISTATE

DESCRIPTION

Euroquartz XO95 series oscillators consist of a TTL/CMOS compatible

hybrid circuit and a miniature quartz crystal packaged in a low-profile

ceramic package. Full military testing is available making this an ideal

crystal for defence and aerospace applications requiring a highly reliable

source of clock signals.

FEATURES

Frequency Range:

1.25MHz to 120MHz

Supply Voltage:

+3.3 Volts or +5.0 Volts

Calibration Tolerance*

A:

±0.01% (±100ppm)

B:

±0.1%

C:

±1.0%

Frequency stability**

Temp. Range

Stability

0° ~ +50°C:

from ±5ppm to ±30ppm

-10°~+70°C:

from ±10ppm to ±50ppm

-40°~+85°C:

from ±20ppm to ±100ppm

-55°~+125°C:

from ±30ppm to ±100ppm

Supply Current

Frequency

3.3 Volts

5.0 Volts

50MHz

10mA

14mA

40MHz

8mA

12mA

30MHz

6mA

10mA

24MHz

4mA

8mA

Output Load

CMOS:

15pF (<50pF available)

TTL:

10 Loads

Start-up Time:

2ms typical, 5ms max. (to reach

90% amplitude at 25°±2°C)

Rise/Fall Time:

3ns typical, 6ns maximum

Ageing:

±10ppm maximum in 1st year

Shock, survival***:

3000g peak 0.3ms, ½ sine

Vibration, survival:

20g rms 10Hz~2000Hz random

Operating Temperature:

-10°C to +70°C (Commercial)

-40°C to +85°C (Industrial)

-55°C to +125°C (Military)

*

Tighter tolerance available

**

Does not include calibration tolerance

***

High shock version available

Note: All parameters are measured at ambient temperature with a 10M

W

and 10pF load at 5.0 Volts.

SPECIFICATION

PAD CONNECTIONS

1:

Output Enable INH (Tristate) or NC

2:

Ground

3:

Output

4:

Vdd

Output Condition

Power Down

Tristate

Current consumption

when Pad 1 is LOW

LOW

HIGH

Output recovery delay

when Pad 1 changes

from LOW(0) to HIGH(1)

DELAYED

IMMEDIATE

Power Down: When Pad 1 is LOW (0) the oscillator stops

oscillation.

Tristate; When Pad 1 is LOW the oscillator continues to run but the

output buffer amplifier stops functioning; output is high

impedance (Z).

PACKAGING

1:

Tray pack (Standard)

2:

16mm tape, 175mm or 325mm reels (optional)

(As per EIA 481)

PART NUMBER GENERATION

XO95 series oscillators part numbers are derived as follows:

EXAMPLE

16.000MHz XO95050UMTA Cal.C

XO95 -

series designation

030 -

±30ppm

050 -

±50ppm

100 -

±100ppm

U -

CMOS/TTL o/p

M -

Military Temp.

I -

Industrial Temp.

C -

Commercial Temp.

T -

Tristate

P -

Power Down

Blank -

5.0 Volts

A -

3.3 Volts

Cal.A -

Calibration A

Cal.B -

Calibration B

Cal.C -

Calibration C

Cal.x -

Special cal. in ppm (Where ‘x’ is the agreed calibration tol.)

Frequency

MILITARY TESTING

Testing to Mil. specifications is available. To detail testing required

see separate Mil. Testing specification or contact Euroquartz

Technical Sales.