CFPS-302, -303 Commercial Oscillator
ISSUE 2; 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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HCMOS/LSTTL
Drive Capability: 15pF or 10LSTTL
Non tri-state (CFPS-302)
Tri-state (CFPS-303)
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I
I
I
Minimum Order Information Required
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I
Frequency + Model Number + Operating Temperature (if
applicable) + Frequency Stability
Package Outline
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8-pin DIL compatible resistance welded enclosure,
hermetically sealed with glass to metal seal. Available
over 0 to 70°C (CFPS-302, -303) or -40 to 85°C
(CFPS-302I, -303I)
Outline in mm
5.8 max
13.20
8
5
7.62SQ
t
f
t
r
4.0 min
13.20
Pin connections
1. N/C or Enable/Disable.
4. GND
5. Output
8. +Vs
1
4
LEADED SPXOs
Standard Frequency Stabilities
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0.8 max
±25ppm, ±50ppm, ±100ppm
(over operating temperature range)
11.8
Operating Temperature Ranges
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0 to 70°C (CFPS-302, -303)
–40 to 85°C (CFPS-302I, -303I)
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∅0.5
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
Helium leakage
10
-8
mBar litres of
I
I
I
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
+Vs
90%Vs
Output Waveform - HCMOS/LSTTL
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I
Tri-state Operation (CFPS-303)
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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 1 enables oscillator
output
Maximum ‘pull-down’ resistance required to disable
output = 20kΩ
Disable current 50µA typical
50%Vs
2.4V
1.4V
0.4V
T
Duty cycle = t x 100(%)
T
0V
t
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10%Vs
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I
Electrical Specifications - maximum limiting values when measured in HCMOS test circuit.
Frequency
Range
500.0kHz to
20.0MHz
> 20.0 to
25.0MHz
> 25.0 to
< 70.0MHz
70.0 to
160.0MHz
Ordering Example
Frequency
Model number -302 = Non tri-state, -303 = Tri-state
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.
Frequency
Stability
±25ppm, ±50ppm,
±100ppm
±25ppm, ±50ppm,
±100ppm
±25ppm, ±50ppm,
±100ppm
±25ppm, ±50ppm,
±100ppm
Supply Voltage
3.3V±0.33V
3.3V±0.33V
3.3V±0.33V
3.3V±0.33V
Supply Current
10mA
20mA
20mA
40mA
Rise Time(t
r
)
10ns
10ns
6ns
3ns
22.0MHz
Fall Time(t
f
)
10ns
10ns
6ns
3ns
CFPS-302I B
Duty Cycle
40/60%
40/60%
40/60%
40/60%
Model Number
CFPS-302, -303
CFPS-302, -303
CFPS-302, -303
CFPS-302, -303
Test Circuit - HCMOS
Oscillator
14
8 5
A
+Vs
Test Circuit - LSTTL
A
Oscillator
1 4
8 5
D1
+Vs
2.0k
D2
V
0.1µF 15pF*
Oscilloscope
V
0.1µF
15pF*
D3
D4
Oscilloscope
Frequency counter
*Inclusive of jigging & equipment capacitance
Note: Pin 1 = No connection on non tri-state models
Frequency counter
D1 to D4 = BAT85
or equivalent
*Inclusive of jigging & equipment capacitance
Note: Pin 1 = No connection on non tri-state models
LEADED SPXOs
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