IQXO-85, -86, -87, -88 MILITARY OSCILLATORS
ISSUE 8; 3 APRIL 2009
Description
Outline (mm)
0.8 max
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8-pin DIL compatible resistance welded enclosure,
hermetically sealed with glass to metal seals and gold plated
pins and bases. Available non-screened (IQXO-85, -87) and
fully screened (IQXO-86, -88)
8-pin DIL
250kHz to 72MHz
HCMOS/TTL
Drive Capability: 50pF or 10TTL
Non tri-state (IQXO-85, -86)
Tri-state (IQXO-87, -88)
±10ppm, ±25ppm
±50ppm, ±100ppm (inclusive of supply voltage variations
over the operating temperature range)
–55 to 125°C
–55 to 125°C
No connection or Logic ‘1’ to pin 1 enables oscillator output
Logic ‘0’ to pin 1 disables oscillator output; when disabled the
oscillator output goes to the high impedance state
Disable current 50µA typical
Bump: 4000 bumps at 391m/s
2
in each of the three mutually
perpendicular planes
Hermetic Seal: not to exceed 1 x 10
-8
mBar litres of Helium
leakage
Humidity: steady state: in accordance with test Ca of
IEC 60068-2-3, for 56 days at 40°C at a relative humidity of
93%, cyclic: in accordance with test Db variant 1 of
IEC 60068-2-30, at severity (b), 55°C for six cycles
Shock: 981m/s
2
for 6ms, three shocks in each direction along
the three mutually perpendicular planes
Solderability: test IEC 60068-TA
Vibration: 10 to 60Hz 0.75mm displacement, 60 to 2000Hz
98.1m/s
2
acceleration, 30 minutes in each of three mutually
perpendicular planes
5.8 max
4
5
13.20
4.0 min
11.8
Package Outline
CLOCK
OSCILLATORS
Ø0.5
Pin connections
1. N/C or Enable/Disable
4. GND
5. Output
8. +Vs
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Frequency Range
13.20
1
8
Output Compatibility & Load
7.62SQ
Output Waveform
tf
tr
Frequency Tolerance @ 25°C (Optional)
Frequency Stabilities
+Vs
90%Vs
Operating Temperature Range
50%Vs
Storage Temperature Range
10%Vs
0V
t
2.4V
1.4V
0.4V
T
Tri-state Operation (IQXO-87, -88)
Duty cycle = t x 100(%)
T
Environmental
Screening on Each Device (IQXO-86, -88)
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Acceleration: 49000m/s
2
for 1 minute in the ‘Y1’ plane
High Temperature Storage: 24hrs at 150°C
Rapid Change of Temperature: –55 to 125°C, 10 cycles
Dynamic burn-in for 168hrs at 125°C
Check all parameters & assess
IQD + Model Number + Frequency Stability Code +
Frequency Tolerance Code (Optional) + Frequency + Date
Code
Bulk
Frequency + Model Number + Frequency Stability
Marking Includes
Packaging
Minimum Order Information Required
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
Tel: +44 (1460) 270200; Fax: +44 (1460) 72578;
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
Electrical Specifications - maximum limiting values
Frequency Range
250.0kHz to <8.0MHz
8.0MHz to <23.0MHz
23.0MHz to <48.0MHz
48.0MHz to <72.0MHz
Ordering Example
Frequency
Model number: -85, -86 = Non tri-state, -87, -88 = Tri-state
Frequency Stability: A = ±25ppm, B = ±50ppm, C = ±100ppm
Frequency Tolerance @25°C: E = ±10ppm, F = ±25ppm
Please note: Code combination A F is not available
Test Circuit
Frequency Stability
±50ppm, ±100ppm
Supply Voltage Supply Current Rise Time (tr)
5V ±0.5V
5mA
10mA
50mA
65mA
3ns
3ns
50.0MHz IQXO-85 B F
10ns
5ns
Fall Time (tf)
10ns
5ns
Duty Cycle
45/55%
40/60%
Model Number
IQXO-85, -86,
-87, -88
Oscillator
1 4
8 5
A
+Vs
V
0.1
μ
F
15pF*
Oscilloscope
Frequency counter
*Inclusive of jigging and equipment capacitance
Note: Pin 1 = No connection on non tri-state models
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
Tel: +44 (1460) 270200; Fax: +44 (1460) 72578;
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
CLOCK
OSCILLATORS
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