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
EURO
QUARTZ
EQXO-2000BM OSCILLATORS
30kHz to 70MHz
Page 2 of 2
8 pin Dual-in-Line MIL SPECIFICATION
STANDARD FREQUENCIES & SPECIFICATIONS
FOR EQXO-2100BM OSCILLATORS
Stock Number
QUALIFICATION APPROVAL &
ENVIRONMENTAL SPECIFICATION
Vibration:
10Hz to 60Hz, 0.75mm displacement,
60Hz to 2000Hz, 98.1m/s
2
acceleration
30 minutes in each of three mutually-
perpendicular planes.
981 m/s
2
for 6ms, three shocks in each
direction along three mutually-
perpendicular planes.
MIL-STD-202 Method 107
-55°C for 24 hrs., then +150°C, 24 hrs.
85% Relative Humidity at 85°C for 24hrs.
Fine leak not to exceed 1x10
-8
mB litres
of helium leakage, then Gross Leak Test.
MIL-STD-202 Method 211
MIL-STD-202 Method 208
Frequency
Specification
WK00032A
WK00080A
WK00100A
WK00307A
WK00500A
WK01000A
WK01228A
WK03686A
WK04915A
WK06000A
WK06400A
WK08000A
WK09216A
WK10000A
WK12000A
WK14745A
WK15375A
WK16000A
WK18000A
WK20000A
WK24000A
WM025A00
WM030A00
WM032A00
WM033A33
WM040A00
WM050Z00
WM064Z00
32.7680kHz
80.0000kHz
100.000kHz
307.200kHz
500.000kHz
1.00000MHz
1.22880MHz
3.68640MHz
4.91520MHz
6.00000MHz
6.40000MHz
8.00000MHz
9.21600MHz
10.0000MHz
12.0000MHz
14.7456MHz
15.3750MHz
16.0000MHz
18.0000MHz
20.0000MHz
24.0000MHz
25.0000MHz
30.0000MHz
32.0000MHz
33.3330MHz
40.0000MHz
50.0000MHz
64.0000MHz
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
±100ppm
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
-55~+125°C
Shock:
Thermal Shock:
Storage Temperature:
Moisture Resistance:
Seal:
Terminal Strength:
Solerability:
SCREENING
Screening in accordance with MIL-O-55310C Class B.
All devices are 100% tested to the following conditions:
Stabilization Bake:
Temperature Cycling:
Constant Acceleration:
Seal:
Dynamic Burn-in:
Electrical Test:
Vacuum storage at 150°C for 24 hrs.
-55°C to +125°C, 10 cycles
49000m/s
2
for 1 minute inY1 plane.
Fine leak not to exceed 1x10
-8
mB litres
of helium leakage, then Gross Leak Test.
125°C for 168hrs.
Frequency, output waveform, output
Voltage/power, input current/power.
RADIATION TOLERANT VERSIONS
Radiation tolerant versions of EQXO-2000BM series oscillators have
been designed and are manufactured to ensure no functional failures
will occur in any electrical test for a total radiation dose of 40krad(Si).
EQXO-2000BM series oscillators so manufactured have the letter 'H'
appended to the 'BM' in the part number suffix:
20.000MHz EQXO2100BMH
A paper is available describing the general problems encountered in
the design of electrical systems needing to withstand radiation
encountered in the upper atmosphere and space.
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
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