CFPS-39
ISSUE 1; 19 OCTOBER 2004
Delivery Options
■
Please contact our sales office for current leadtimes
Description
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The CFPS-39 is a 3.3V, ultra minature surface mount oscillator
with a HCMOS output
Output Compatibility
Tri-state HCMOS
■
Drive Capability 15pF max
■
Outline in mm
3.2±0.2
2.5±0.2
SURFACE MOUNT
SPXOs
SURFACE MOUNT
SPXOs
0.9 0.7 0.9
0.4
Package Outline
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3.2 x 2.5mm SMD Package
Frequency Range
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1.80 to 50.0MHz
Frequency Stabilities
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±25ppm, ±50ppm, ±100ppm
(inclusive of supply voltage & output load variations over the
operating temperature range)
Operating Temperature Ranges
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-10 to 70°C (CFPS-39)
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-40 to 85°C (CFPS-39I)
Storage Temperature Range
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-55 to 125°C
Tri-state Operation
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Logic ‘1’ to pad 1 enables oscillator output (>70% Vs)
■
Logic ‘0’ to pad 1 disables oscillator output; when disabled the
oscillator output goes to the high impedance state (<30% Vs)
■
No connection to pad 1 enables oscillator output
Solder Conditions
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For typical soldering conditions, please see the relevant
pages in Applications Notes
Marking
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Frequency
Minimum Order Information Required
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Frequency + Model Number + Operating Temperature
Code (if applicable) + Frequency Stability
1.0 1.2 1.0
1 2
4 3
1.3 max
Pad Connections
1. Enable/Disable
2. GND
3. Output
4. +Vs
1.3
1.3
0.8
t
r
Frequency
Counter
Oscillator
4
3
1
2
Oscilloscope
15pF *
Output Waveform
+Vs
90%Vs
t
f
50%Vs
10%Vs
T
Duty cycle = t x 100(%)
T
0V
t
Test Circuit - HCMOS
A
+Vs
Power
Supply
V
+Vs
0.1µF
* Inclusive of jigging & equipment capacitance
Europe Tel: +44 (0)1460 270200
Americas Tel: +1 919 941 9333
Asia
Tel: +86 755 8826 5991
Fax: +44 (0)1460 72578
Fax: +1 919 941 9371
Fax: +86 755 8826 5990
Website: www.cmac.com
Electrical Specification - maximum limiting values when measured in HCMOS test circuit
Frequency Range
Frequency
Stability
±25ppm*, ±50ppm,
±100ppm
Supply Voltage
Supply Current
Rise Time (tr)
Fall Time (tf)
Duty Cycle
Model Number
1.80 to 50.0MHz
3.3V±10%
20mA
6ns
6ns
45/55%
CFPS-39
CFPS-39I
Ordering Example
Frequency
Model No
24.0MHz
CFPS-39
I C
Operating Temperature Code: I = -40 to 85°C: Not applicable for -10 to 70°C
Frequency Stability: A = ±25ppm, B = ±50ppm, C = ±100ppm
*Note - Code IA, ±25ppm over -40 to 85°C is not available
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.
Europe Tel: +44 (0)1460 270200
Americas Tel: +1 919 941 9333
Asia
Tel: +86 755 8826 5991
Fax: +44 (0)1460 72578
Fax: +1 919 941 9371
Fax: +86 755 8826 5990
Website: www.cmac.com
SURFACE MOUNT
SPXOs
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