IQXO-350 Commercial Oscillator
ISSUE 17; 1 SEPTEMBER 2001
Delivery Options
I
Minimum Order Information Required
I
Common frequencies are available from stock, please
contact our sales office for current leadtimes
Frequency + Model Number + Operating Temperature (if
applicable) + Frequency Stability
Outline in mm
0.8 max
I
HCMOS/TTL/LSTTL
Drive Capability: 50pF or 10TTL (<70.0MHz)
30pF (>70.0 to 160.0MHz)
(1.0 to < 100.0kHz 15pF or 10 LS TTL only)
I
∅0.45
4.0 min
Pin connections
1. N/C
7. GND
8. Output
14. +Vs
1
7
7.62
14
15.24
21.0 max
8
t
f
t
r
t
A
Oscillator
1
7
14 8
+Vs
15pF* Oscilloscope
Package Outline
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Standard Frequency Stabilities
LEADED SPXOs
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±25ppm, ±50ppm, ±100ppm
(over operating temperature range)
Operating Temperature Ranges
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0 to 70°C (IQXO-350)
Output Waveform - HCMOS/TTL
–40 to 85°C (IQXO-350I)
+Vs
90%Vs
I
Storage Temperature Range
I
–55 to 125°C
Environmental Specification
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50%Vs
2.4V
1.4V
0.4V
T
Duty cycle = t x 100(%)
T
0V
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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10%Vs
I
I
I
Test Circuit - HCMOS
I
Marking
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Model number + Operating Temperature Code
(if applicable)
Frequency Stability Code
Frequency Tolerance Code (Optional)
Frequency
Date Code (Year/Week)
*Inclusive of jigging & equipment capacitance
Frequency counter
V
0.1µF
I
I
I
I
13.08 max
14-pin DIL compatible resistance welded enclosure,
hermetically sealed with glass to metal seal. Available
over 0 to 70°C (IQXO-350) or -40 to 85°C
(IQXO-350I)
5.1 max
Output Compatibility
Electrical Specifications - maximum limiting values when measured in HCMOS test circuit.
Frequency
Range
1.0 to
< 100.0kHz
100.0 to
< 250.0kHz
250.0kHz to
< 5.0MHz
5.0 to
< 16.0MHz
16.0 to
< 30.0MHz
30.0 to
< 50.0MHz
50.0 to
< 70.0MHz
70.0 to
160.0MHz
Frequency
Stability
±25ppm, ±50ppm,
±100ppm
±25ppm, ±50ppm,
±100ppm
±25ppm, ±50ppm,
±100ppm
±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
5V±0.25V
5V±0.25V
5V±0.25V
Supply Current
10mA
10mA
30mA
15mA
30mA
40mA
50mA
70mA
*Rise Time(t
r
)
10ns
15ns
15ns
10ns
10ns
8ns
6ns
5ns
22.0MHz
*Fall Time(t
f
)
10ns
15ns
15ns
10ns
10ns
8ns
6ns
5ns
IQXO-350I B
**Duty Cycle
45/55%
45/55%
45/55%
45/55%
45/55%
45/55%
40/60%
40/60%
Model Number
IQXO-350, -350I
IQXO-350, -350I
IQXO-350, -350I
IQXO-350, -350I
IQXO-350, -350I
IQXO-350, -350I
IQXO-350, -350I
IQXO-350, -350I
LEADED SPXOs
Ordering Example
Frequency
Model number: -350
Operating Temperature Code: I = -40 to 85°C Not applicable for 0 to 70°C
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 - TTL
A
Oscillator
7
1
14
8
D1
+Vs
Test Circuit - LSTTL
A
Oscillator
7
1
14
8
D1
+Vs
400R
D2
2.0k
D2
V
0.1µF
15pF*
D3
D4
Oscilloscope
V
0.1µF
15pF*
D3
D4
Oscilloscope
Frequency counter
Frequency counter
D1 to D4 = IN4148
or equivalent
*Inclusive of jigging & equipment capacitance
D1 to D4 = BAT85
or equivalent
*Inclusive of jigging & equipment capacitance
Note: Pin 1 = No connection on non tri-state models
Analog electronics
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