IQXO-149 Commercial Oscillator
ISSUE 13; 1 SEPTEMBER 2001
Delivery Options
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Marking
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Please contact our sales office for current leadtimes
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Model number + Operating Temperature Code
(if applicable)
Frequency Stability Code
Frequency
Date Code (Year/Week)
Output Compatibility
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Tri-state HCMOS/TTL
Drive Capability: 50pF or 10TTL (<70.0MHz)
30pF (70.0 to 160.0MHz)
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I
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Minimum Order Information Required
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Package Outline
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14-pin DIL compatible resistance welded enclosure,
hermetically sealed with glass to metal seal. Available
over 0 to 70°C (IQXO-149) or -40 to 85°C
(IQXO-149I)
Frequency + Model Number + Operating Temperature (if
applicable) + Frequency Stability
Standard Frequency Stabilities
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LEADED SPXOs
±25ppm, ±50ppm, ±100ppm
(over operating temperature range)
Outline in mm
5.1 max
∅0.45
4.0 min
Pin connections
1. N/C or Enable/Disable
7. GND
8. Output
14. +Vs
1
7
7.62
14
15.24
21.0 max
8
t
f
t
r
13.08 max
2.4V
1.4V
0.4V
T
Duty cycle = t x 100(%)
T
0V
t
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0 to 70°C (IQXO-149)
–40 to 85°C (IQXO-149I)
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Storage Temperature Range
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–55 to 125°C
Environmental Specification
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Terminal Strength: 0.91kg max. Force perpendicular to
top & bottom
Hermetic Seal: not to exceed 1
x
10
-8
mBar litres of
Helium leakage
Solderability: MIL-STD-202E, Method 208C
Vibration: 10 to 55Hz 0.76mm displacement, sweep 60
seconds, duration 2 hours
Rapid Change of Temperature over Operating
Temperature Range: 10 cycles
Shock: 981m/s
2
for 6ms, three shocks in each direction
along the three mutually perpendicular planes
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I
I
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Output Waveform - HCMOS/TTL
+Vs
90%Vs
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Tri-state Operation
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Logic ‘0’ to pin 1 disables oscillator output; when
disabled the oscillator output goes to the high
impedance state
No connection or Logic ‘1’ to pin enables oscillator
output
Maximum ‘pull-down’ resistance required to disable
output = 20kΩ
Disable current 50µA typical
50%Vs
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10%Vs
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0.8 max
Operating Temperature Ranges
Electrical Specifications - maximum limiting values when measured in HCMOS test circuit.
Frequency
Range
500.0kHz to
< 5.0MHz
5.0 to
< 30.0MHz
30 to
< 50.0MHz
50 to
< 70.0MHz
70 to
160.0MHz
Ordering Example
Frequency
Model number -149
Operating Temperature Code: I = -40 to 85°C Not applicable for 0 to 70°C
LEADED SPXOs
Frequency
Stability
±25ppm, ±50ppm,
±100ppm
±25ppm, ±50ppm,
±100ppm
±25ppm, ±50ppm,
±100ppm
±25ppm, ±50ppm,
±100ppm
±25ppm, ±50ppm,
±100ppm
Supply Voltage
5V±0.25V
5V±0.25V
5V±0.25V
5V±0.25V
5V±0.25V
Supply Current
20mA
30mA
40mA
50mA
70mA
Rise Time(t
r
)
15ns
10ns
8ns
6ns
5ns
22.0MHz
Fall Time(t
f
)
15ns
10ns
8ns
6ns
5ns
Duty Cycle
45/55%
45/55%
45/55%
40/60%
40/60%
Model Number
IQXO-149, -149I
IQXO-149, -149I
IQXO-149, -149I
IQXO-149, -149I
IQXO-149, -149I
IQXO-149I B
Frequency Stability: A = ±25ppm, B = ±50ppm, C = ±100ppm
Please note that the rise and fall times listed are the maximum values we specify to cover various frequency breaks.
In practise the actual values are generally lower depending upon the spot frequency chosen. For typical values please
contact our sales office.
Test Circuit - HCMOS
A
Oscillator
7
1
14 8
+Vs
Test Circuit - TTL
A
Oscillator
1
7
14 8
+Vs
D
1
400R
D
2
V
0.1µF 15pF*
Oscilloscope
V
0.1µF
15pF*
D
3
D
4
Oscilloscope
Frequency counter
*Inclusive of jigging & equipment capacitance
Frequency counter
D
1
to D
4
= IN916
or equivalent
*Inclusive of jigging & equipment capacitance
PCB Design
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