CFPT-5300 SERIES
ISSUE 1; 15 OCTOBER 2004
Delivery Options
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Please contact our sales office for current lead times
Description
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Package Outline
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Low Profile DIL 14 resistance welded enclosure,
hermetically sealed
Ageing
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The CFPT-5300 series of temperature compensated
crystal oscillators (TCXOs), provide for ultra high stabilities
down to ±0.3ppm and operating temperature ranges as
wide as -55 to 95°C. Housed in an industry standard 4 pin
DIL 14 package, the oscillator uses C-MAC’s latest custom
ASIC “Pluto” a single chip oscillator and analogue
,
compensation circuit. Its wide frequency range, operating
temperature range, coupled with it’s high stability and linear
frequency pulling make it the ideal reference oscilator. Its
ability to function down to supply voltage of 2.4V and low
power consumption makes it suitable for a wide range of
applications
±1ppm
±3ppm
±2ppm
±5ppm
maximum
maximum
maximum
maximum
in first year, frequency < 20MHz
for 10 years, frequency < 20MHz
in first year, frequency > 20MHz
for 10 years, frequency > 20MHz
Frequency Stability
Temperature: see table
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Supply Voltage Variation ±10% < ±0.2ppm*
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Load co-efficient 15pF ±5pF < ±0.2ppm*
* Dependent on frequency and output type
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Standard Frequency
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Frequency Adjustment
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3.2, 4.096, 5.0, 6.4, 8.192, 9.6, 10.0, 12.8, 13.0, 14.4,
14.85, 16.384, 16.8, 19.2, 19.44, 19.8, 20, 32.768, 38.88,
40.0 MHz
Non - standard frequencies in the range 1.25MHz to
40.0MHz are available on request, please contact our
sales office
Waveform
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Square HCMOS 15pF load
The following non-standard outputs are available on
request, contact sales office:
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Option A (standard):
Control Voltage 1.5V±1.0V, applied to pin 1
> ±5ppm*, frequency < 20MHz
> ±7ppm, frequency > 20MHz
Linearity
<3%
Slope
Positive
Input resistance
>100kΩ
Modulation Bandwidth
>2kHz
Option B:
> ±5ppm *(>±7ppm if frequency >20MHz) by means
of an external 100kΩ potentiometer connected as a
variable resistor from pin 1 to GND
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Square ACMOS 50pF max load
Sinewave, > 1.0pk-pk, 10kΩ // 10pF load
Clipped Sinewave, >0.8Vpk-pk, 10kΩ // 10pF load
Sinewave and clipped sinewave signals are superimposed
on a DC offset, to remove this offset insert an external
coupling capacitor in series with the output
* Higher adjustment range up to ±50ppm and
non standard control voltage ranges are available on
request. This may not be compatible with all stability
options, contact sales office
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LEADED TCXOs
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Supply Voltages
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Option C:
No frequency adjustment, initial calibration @25°C
<±1.0ppm
3.3V or 5.0V
(non standard supply voltages in the range 2.4V to 6.0V are
available on request, please contact our sales office)
Storage Temperature Range
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-55 to 95°C
Current Consumption
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HCMOS Typically
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1+Frequency(MHz)*Supply(V)*{Load(pF)+15}*10-3mA
Eg 20MHz, 5V, 15pF
»
4mA
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Sinewave, < 8mA
Clipped sinewave,
1+Frequency(MHz)*1.2*{Load(pF)+30}*10-3mA
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
Environmental Specification
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Outline in mm
5.08 max
0.75 max
Bump: IEC 60068-2-29, Test Eb, 4000 ±10 bumps at
390m/s
2
in each of the three mutually perpendicular
axes
Shock: IEC 60068-2-27 Test Ea, 980m/s
2
acceleration for
6ms duration, 3 shocks in each direction along
three mutually perpendicular axes
Solderability: IEC 60068-2-20,Test T, method 1
(solder bath): Temperature 235°C
Vibration: IEC 60068-2-6 Test Fc Procedure B4,
10-60Hz 1.5mm displacement, 60-2000Hz at 98.1
m/s
2
, 30 minutes in each of three mutually
perpendicular axes at 1 octave per minute
Damp Heat (steady state): IEC 60068-2-3, Test Ca,
Duration 56 days
Robustness of Termination: IEC 60068-2-21, Test
Ua (tensile): Force 1Kg
Sealing: IEC 60068-2-17, Test Qc (gross) & test Qk (fine)
Marking: Heat cured epoxy ink, engraving or label
Immersion in Solvents: IEC 60068-2-45, Test Xa
Pin Connections
1. Frequency Adjust
(do not connect if
Frequency Adjust
option C has
been selected)
7. GND
8. Output
14. +Vs
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∅0.41
6.35±0.50
1
7
7.62
14
15.24
20.7 max
8
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Output Waveform - HCMOS
Marking Includes
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C-MAC
Part Number (E and four digits)
Frequency (MHz)
90% (VoH-VoL)
tf
13.08 max
tr
+Vs
VoH
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50% (VoH-VoL)
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Pin 1 / Static sensitivity identified (Triangle)
Date Code and manufacturing location code (YYWWL)
VoL
t
T
Duty cycle = t x 100(%)
T
0V
LEADED TCXOs
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10% (VoH-VoL)
Minimum Order Information Required
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Frequency + Model Number + Frequency Stability Vs
Operating Temperature Code + Frequency Adjustment
Code
OR
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Discrete part number for repeat orders
Test Circuit - HCMOS
Voltage
Control
or
A
Oscillator
1
14
7
8
+Vs
Please supply full information for non-standard options, if
required
V
0.1µF
15pF*
Oscilloscope
Frequency counter
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
Phase Noise (typical figures)
Frequency
10.0MHz
20.0MHz
40.0MHz
Frequency offset from
carrier: 10Hz
–95 dBc/Hz
–85 dBc/Hz
–75 dBc/Hz
Frequency offset from
carrier: 100Hz
–120 dBc/Hz
–110 dBc/Hz
–100 dBc/Hz
Frequency offset from
carrier: 1kHz
–135 dBc/Hz
–125 dBc/Hz
–120 dBc/Hz
Frequency offset from
carrier: 10kHz
–140 dBc/Hz
–135 dBc/Hz
–130 dBc/Hz
Frequency offset from
carrier: 100kHz
–145 dBc/Hz
–140 dBc/Hz
–135 dBc/Hz
Electrical Specification - limiting values when measured in test circuit
Frequency Range
1.25 to 40.0MHz
Supply Voltage
3.3V±10%
Output Waveform
Square HCMOS
15pF
1.25 to 40.0MHz
5.0V±10%
Square HCMOS
15pF
Output levels
Voh
>
90% Vs
Vol
<
10% Vs
Voh
>
90% Vs
Vol
<
10% Vs
7ns
7ns
45/55%
CFPT-5302
Rise Time(tr)
8ns
Fall Time (tf)
8ns
Duty Cycle
45/55%
Model Number
CFPT-5301
Frequency Stability Available Over Operating Temperature Ranges
Operating
Temperature
Ranges
0 to 70°C
–20 to 70°C
–30 to 75°C
–40 to 85°C
–55 to 95°C
Ordering Example
Frequency
Model number
Frequency Stability Vs Operating Temperature Code
LEADED TCXOs
Frequency Stabilities Vs Operating Temperature Range
±0.3ppm
Code AC*
Code AS*
±0.5ppm
Code EC
Code ES
Code EU*
Code EX*
±0.8ppm
Code BC
Code BS
Code BU
Code BX
±1.0ppm
Code FC
Code FS
Code FU
Code FX
Code FA*
10.0MHz
CFPT-5301 FX A
±1.5ppm
Code CC
Code CS
Code CU
Code CX
Code CA*
Frequency Adjustment Code
(For frequency adjustment codes see main text)
Note:* Codes may not be available for all frequencies
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
