EURO
QUARTZ
FEATURES
Ceramic substrate and ruggedized mounts for high reliability
Industry-standard 8 pin DIL package for ease of design
Full screening to MIL-O-55310C, Class B available
Radiation tolerant version favailable for space applications
EQXO-2000BM OSCILLATORS
30kHz to 70MHz
Page 1 of 2
8 pin Dual-in-Line MIL SPECIFICATION
·
DESCRIPTION
EQXO-2000BM 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 8 pin DIL oscillator package. EQXO-2000BM
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 EQXO-2000BM series oscillators provide an accurate and
reliable source of clock signals regardless of the severity of the
environment in which it operates.
RADIATION TOLERANCE
For equipment to be used in space or the upper atmosphere the
EQXO-2000BM series oscillators may be produced in a radiation
tolerant version. Designated EQXO-2000BMH, this variant of the
oscillator will withstand ionizing radiation to resist electrical failures
for a total radiation dose of 40krad(SI).
OUTLINE & DIMENSIONS
SPECIFICATION
Model No:
Frequency Range:
Calibration Tolerance at 25°C:
Frequency Stability*
EQXO-2100BM:
EQXO-2050BM:
Supply Voltage:
Output:
Ageing:
Symmetry:
Operating Temperature Range:
Storage Temperature Range:
Construction:
EQXO-2000BM
30kHz to 70.0MHz
±10ppm to ±25ppm
±100ppm over -55° to +125°C
±50ppm over -55° to +125°C
+5.0 Volts DC±10%
CMOS, 50pF/10 TTL loads
±3pm max in first year
45%/55%
-55° to +125°C
-55° to +125°C
Ceramic substrate, resistance
welded can.
MODEL NUMBERS
Model Number
Frequency
Calibration
Stability
Tolerance
-55° to +125°C
at 25°C
Radiation
Tolerant
EQXO-2050BM
EQXO-2100BM
EQXO-2050BMH
EQXO-2100BMH
±10ppm
±25ppm
±10ppm
±25ppm
±50ppm
±100ppm
±50ppm
±100ppm
No
No
Yes
Yes
MIL SCREENING
EQXO-2000BM series oscillators may be ordered screened
i.a.w. the schedules detailed in 'Qualification Approval and
Environmental Specification' on page 2 of this specification.
* 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.)
CURRENT CONSUMPTION /RISE & FALL TIMES
Frequency Range
30kHz ~ 1.0MHz
1.0MHz ~ 4.0MHz
4.0MHz ~ 20MHz
20MHz ~ 35MHz
35MHz ~ 50MHz
50MHz ~ 65MHz
Supply Current Rise/Fall Time
(mA max.)
(ns max.)
10
15
20
35
40
70
10
10
10
10
5
5
PART NUMBER GENERATION
Frequency / Model Number / Plating* / Screening (if
required)
Example:
10.000MHz EQXO-2100BMH Screened
*Note: Lead and base plating is gold flashed over nickel as standard.
If nickel plating only is required enter / - nickel / in this position.
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
EUROQUARTZ [ EUROQUARTZ LIMITED ]
