EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001

info@euroquartz.co.uk

www.euroquartz.co.uk

DESCRIPTION

For applications with high operating temperatures such as downhole

instrumentation, rotary shaft sensors and underground boring tools.

Specifications are typical at 25°C unless otherwise indicated. Tighter

specifications are available, contact Euroquartz technical sales.

Supply Voltage:

+3.3 or +5.0Volts ±10%

Calibration Tolerance:

±50ppm or tighter as reqd.

Frequency Stability

25° ~ +150°C:

±100ppm

25° ~ +175°C:

±150ppm

25° ~ +225°C:

±175ppm

Supply Current (Typical)

3.3V

5.0V

24MHz:

3.0mA

8.0mA

32MHz:

5.0mA

10.0mA

50MHz:

6.0mA

14.0mA

Output Load (CMOS):

15pF

Start-up Time:

5ms max.

Rise/Fall Time:

10ns typical

Duty Cycle:

60/40%

Ageing first year:

±5ppm max. at 25°C

Ageing:

±100ppm max. at 200°C

Shock Survival

Standard:

3,000g, 0.3ms, ½ sine

HG version:

10,000g, 0.3ms, ½ sine

Vibration Survival:

20g, 10~2000Hz swept sine

Operating Temp. Range:

-55°C to 225°C

SPECIFICATION

FEATURES

High temperature operation up to 225°C

Excellent stability over temperature

Fast start-up

High shock resistance

CMOS/TTL compatible output

Low EMI emission

Hermetically sealed ceramic package

CXOXHT oscillators have two enable/disable options, designated E &

N. The E version has a tristate output and stops oscillating internally

when the output is placed in a high Z state. The N version does not

have the control pin, Pin1, connected internally so there is no

enable/disable function with this option.

CXOXHT HIGH TEMPERATURE OSCILLATORS

HOW TO ORDER CXOXHT OSCILLATORS

CXOXHT

4

S

HG

E

SM1

-

20.0M

– /

–

/

200

/

H

Blank

= standard

S = special

or custom

Enable/Disable

option E or N

Terminations

Blank = SM1 =Gold plated

SM3 = Solder dipped

SM5 = Solder dipped

(lead free)

Frequency

M = MHz

Calibration

Tolerance

at 25°C

in ppm

Total

Frequency

Tolerance

(±ppm)

Temp. Range

H = 25° to 200°C

S = customer

specified temp.

range

High Temperature/High Shock

Package Type

CXOMHT

CXOXHT

Shock Level

Blank =

standard

HG =

high shock

ENABLE/DISABLE OPTIONS (E/N)

Supply Voltage

4 = 3.3V

5 = 5.0V

Frequency

Stability

over

temperature

range

(±ppm)

OUTLINE & DIMENSIONS

1.0MHz to 50.0MHz

ENABLE/DISABLE OPTION E - FUNCTION TABLE

Enable (Pin1 High*)

Disable (Pin 1 Low)

Output

Frequency Output

High Z state

Oscillator

Oscillates

Stops

Current

500µA @25°C

3.2µA @25°C

*When Pin 1 is allowed to float it is held by an internal pull-up resistor

PACKAGING OPTIONS

CCXOXHT oscillators are available either tray packed <250pcs, or

tape and reel >250 pieces.

16mm tape, 178mm or 330mm reels (EIA 418).