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
EURO QUARTZ
14 pin Dual-in-Line MIL SPECIFICATION
Page 1 of 2
DESCRIPTION
EQXO-1000BM and 3000BM series oscillators are designed and
manufactured by Euroquartz Ltd for aerospace, defence and similar
applications where high-reliability clock oscillators are required. The
oscillator is produced in the industry-standard 14 pin DIL oscillator
package. EQXO-1000BM series oscillators incorporates a custom
designed, all-ceramic oscillator substrate and a ruggedized three-
point crystal mounting system inside a hermetically-sealed metal
package. The specification ensures that the oscillators provide an
accurate and reliable source of clock signals regardless of the severity
of the environment in which it operates. EQXO-3000BM series
oscillators are identical to EQXO-1000BM series but have 14 pins for
extra mechanical security.
RADIATION TOLERANCE
For equipment to be used in space or the upper atmosphere the
EQXO-1000BM and 3000BM series oscillators may be produced in a
radiation tolerant version. Designated EQXO-x000BMH, this variant of
the oscillator will withstand ionizing radiation to resist electrical
failures for a total radiation dose of 40krad(SI).
OUTLINE & DIMENSIONS
Model No:
EQXO-1000BM or 3000BM
Frequency Range:
30kHz to 70.0MHz
Calibration Tolerance at 25°C:
±10ppm to ±25ppm
Frequency Stability*
EQXO-1100BM:
±100ppm over -55° to +125°C
EQXO-1050BM:
±50ppm over -55° to +125°C
Supply Voltage:
+5.0 Volts DC±10%
Output:
CMOS, 50pF/10 TTL loads
Ageing:
±3pm max in first year
Symmetry:
45%/55%
Operating Temperature Range:
-55° to +125°C
Storage Temperature Range:
-55° to +125°C
Construction:
Ceramic substrate, resistance
welded can.
* Frequency stability is inclusive of frequency adjustment at 25°C and
any variations due to load change, ageing, supply voltage change
(±10%) and variations attributable to shock and vibration, (see
Qualification Approval and Environmental Specification.)
SPECIFICATION
30kHz ~ 1.0MHz
10
1.0MHz ~ 4.0MHz
15
10
4.0MHz ~ 20MHz
20
10
20MHz ~ 35MHz
35
10
35MHz ~ 50MHz
40
5
50MHz ~ 65MHz
70
5
Frequency Range
Supply Current
(mA max.)
Rise/Fall Time
(ns max.)
CURRENT CONSUMPTION /RISE & FALL TIMES
FEATURES
Ceramic substrate and ruggedized mounts for high reliability
Industry-standard 14 pin DIL package, 4 pin or 14 pin
Full screening to MIL-O-55310C, Class B available
Radiation tolerant version favailable for space applications
EQXO-1000BM and 3000BM OSCILLATORS
EQXO-1050BM
±10ppm
±50ppm
No
4
EQXO-1100BM
±25ppm
±100ppm
No
4
EQXO-1050BMH
±10ppm
±50ppm
Yes
4
EQXO-1100BMH
±25ppm
±100ppm
Yes
4
EQXO-3050BM
±10ppm
±50ppm
No
14
EQXO-3100BM
±25ppm
±100ppm
No
14
EQXO-3050BMH
±10ppm
±50ppm
Yes
14
EQXO-3100BMH
±25ppm
±100ppm
Yes
14
Model Number
Calibration
Tolerance
at 25°C
Frequency
Stability
-55° to +125°C
Radiation
Tolerant
MODEL NUMBERS
PART NUMBER GENERATION
Frequency / Model Number / Screening (if required)
Example: 10.000MHz EQXO-1100BMH Screened
MIL SCREENING
EQXO-1000BM series oscillators may be ordered screened i.a.w. the
schedules detailed in 'Qualification Approval and Environmental
Specification' on page 2 of this specification.
No. of
Pins