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20.0MHZCFPT-9055EU1ALF

Description
ACMOS Output Clock Oscillator, 20MHz Nom, LEAD FREE, SMD, 6 PIN
CategoryPassive components    oscillator   
File Size62KB,4 Pages
ManufacturerC-MAC Automotive
Websitehttps://cmac.com
Environmental Compliance
Download Datasheet Parametric View All

20.0MHZCFPT-9055EU1ALF Overview

ACMOS Output Clock Oscillator, 20MHz Nom, LEAD FREE, SMD, 6 PIN

20.0MHZCFPT-9055EU1ALF Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Reach Compliance Codeunknow
Other featuresTRI-STATE; ENABLE/DISABLE FUNCTION
Ageing1 PPM/FIRST YEAR
Maximum control voltage4.5 V
Minimum control voltage0.5 V
maximum descent time2 ns
Frequency Adjustment - MechanicalNO
frequency stability0.5%
Manufacturer's serial numberCFPT-9055
Installation featuresSURFACE MOUNT
Nominal operating frequency20 MHz
Maximum operating temperature75 °C
Minimum operating temperature-30 °C
Oscillator typeACMOS
Output load50 pF
physical size14.7mm x 9.2mm x 6.2mm
longest rise time2 ns
Maximum supply voltage5.5 V
Minimum supply voltage4.5 V
Nominal supply voltage5 V
surface mountYES
maximum symmetry45/55 %
Base Number Matches1
CFPT-9050 Series
ISSUE 6 ; 23 DECEMBER 2004
Recommended for New Designs
Delivery Options
Frequency Stability
Temperature: see table
Typical Supply Voltage Variation ±10% < ±0.2 ppm*
Typical Load Coefficient 15pF ±5pF < ±0.2 ppm*
Please contact our sales office for current leadtimes
Description
* Depending on frequency and output type
Frequency Adjustment
A highly versatile series of surface mountable
14.7 x 9.2 x 6.2mm temperature compensated voltage
controlled crystal oscillators (TCVCXOs) for applications
where small size and high performance are pre-
requisites. This oscillator uses C-MAC’s latest custom
ASIC "Pluto", a single chip oscillator and analogue
compensation circuit, capable of sub 0.3 ppm
performance. Its wide frequency range, operating
temperature range, drive capability, coupled with its
high stability and linear frequency pulling make it the
ideal reference oscillator. Its ability to function down to
a supply voltage of 2.4V and low power consumption
makes it particularly suitable for mobile applications
Three options with external Voltage Control 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 can be available
depending on frequency and stability options.
Please consult our sales office
Linearity
Slope
Input resistance
Modulation bandwidth
Standard control voltage ranges:
Without reference voltage
Without reference voltage
With reference voltage
< 1%
Positive
> 100kΩ
> 2kHz
Standard Frequencies
9.6, 10.0, 12.8, 19.44, 20.0, 38.88, 49.152, 51.84MHz
Waveform
SURFACE MOUNT
TCXOs
Square HCMOS 15pF load
Square ACMOS 50pF max. load
Sinewave 10kΩ // 10pF AC-coupled
,
Clipped sinewave 10kΩ // 10pF AC-coupled
,
- Vs=5.0V 2.5V±2V
- Vs=3.3V 1.65V±1V
- Vc=0V to Vref
Reference Voltage, Vref (HCMOS/ACMOS only)
Supply Voltage
Optional reference voltage output on pad 5, suitable for
potentiometer supply or DAC reference.
1. No output (standard option)
2. 2.2V, for Min. Vs>2.4V
3. 2.7V, for Min. Vs>3.0V
4. 4.2V, for Min. Vs>4.5V
Maximum load current (mA) = Vref /10
Operating range 2.4 to 6.0V, see table
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, 6 to 12 mA depending on frequency
Clipped Sinewave, Typically
1+Frequency(MHz)*1.2*{Load(pF)+30}*10
-3
mA
For manual frequency adjustment (HCMOS/ACMOS output
only) connect an external 50kΩ potentiometer between
pad 5 (Reference Voltage) and pad 3 (GND) with wiper
connected to pad 1 (Voltage Control). Please specify
reference voltage as a part of the ordering code
Note: Please contact our sales office if a reference voltage
is required in combination with sine or clipped sinewave
output
Tri-state
Package Outline
14.7 x 9.2 x 6.2mm SMD
Ageing
Pad 2 open circuit or >0.6Vs output enabled
< 0.2Vs Tri-state
When Tri-stated, the output stage is disabled for all
output options, but the oscillator and compensation
circuit are still active (current consumption <1mA)
±1ppm maximum in first year
±3ppm maximum for 10 years
±1ppm maximum after reflow
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
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