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CFPT-9031HX1A Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

Part # CFPT-9031HX1A
Description  High Performance TCXO/TCVCXO
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CFPT-9031HX1A Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers

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CFPT-9025 Series High Performance TCXO/TCVCXO
ISSUE 3; 1 FEBRUARY 2006
Recommended for New Designs
Delivery Options
Please contact our sales office for current leadtimes
Description
The CFPT-9025 series of temperature compensated
crystal oscillators provide for ultra high stabilities down
to ±0.3ppm and operating temperature ranges as wide as
–55 to +125°C. The oscillator uses C-MAC’s latest custom
ASIC "Pluto", a single chip oscillator and analogue
compensation circuit. Due to its unique mechanical
construction the CFPT-9025 series is able to withstand
20,000 G’s acceleration, which makes it the TCXO of
choice for gun hardened GPS navigation systems
Standard Frequencies
9.6, 10.0, 11.68, 12.504, 12.8, 13.0, 14.4, 16.3676, 19.44,
20.0, 21.73875, 24.5535, 38.88, 40.96, 47.032, 49.152,
51.84 MHz
Non-standard Frequencies in the range 1.0 MHz to 75.0 MHz
(see table) are available on request, contact sales office.
Output Waveform
Square HCMOS 15pF load
Square ACMOS 50pF max. load
Sinewave >1.0pk-pk, 10k
Ω // 10pF load
Clipped sinewave >0.81Vpk-pk, 10k
Ω // 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
Supply Voltage
3.3 and 5.0V, see table, non-standard supply voltages in
the range 2.4 to 6.0V are available on request, contact
sales office
Current Consumption
HCMOS Typically
1+Frequency(MHz)*Supply(V)*{Load(pF)+15}*10-3 mA
E. g. 20MHz, 5V, 15pF
4mA
ACMOS Typically
1+Frequency(MHz)*Supply(V)*{Load(pF)+23}*10-3 mA
Sinewave < 8 mA
Clipped Sinewave Typically
1+Frequency(MHz)*1.2*{Load(pF)+30}*10-3 mA
Package Outline
Low Profile, 7.6 x 9.3 x 3.2 mm SMD package with High
Temperature Co-fired Ceramic base and metal cover
Ageing
±1ppm maximum in first year
±5ppm maximum for 10 years
Frequency Stability
Temperature: see table
Typical Supply Voltage Variation ±10%
< ±0.2 ppm
Typical Load Coefficient ±10%
< ±0.1 ppm
Frequency Adjustment
Three options with external Control Voltage applied to
pad 1:
A - Ageing adjustment: > ±5ppm (Standard Option)
B - No frequency adjustment initial calibration @ 25°C
< ±0.5 ppm
C - High Pulling ±10ppm to ±50ppm and non-standard
control voltage ranges may be available depending
on frequency and stability options. Please consult
our sales office
Linearity
< 1%
Slope
Positive
Input resistance
> 100k
Modulation bandwidth
> 2kHz
Standard control voltage ranges:
Without reference voltage
- Vs=5.0V Vc=2.5V±2V
Without reference voltage
- Vs=3.3V Vc=1.65V±1V
With reference voltage
- Vc=0V to Vref
Reference Voltage, Vref
Optional reference voltage output on pad 2, suitable for
potentiometer supply or DAC reference.
1. No output (Standard option)
2. 2.2V, for Min. Vs>2.4V
3. 2.75V, for Min. Vs>3.0V
4. 4.2V, for Min. Vs>4.5V
Maximum load current 100µA
For manual frequency adjustment connect an external
50k
Ω potentiometer between pad 2 (Reference Voltage)
and pad 3 (Ground) with wiper connected to pad 1
(Voltage Control). Please specify reference voltage as a
part of the ordering code


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