CFPT-9300 Series Lead-Free Miniature High Precision TCXO / TCVCXO
ISSUE H; 29
th
APRIL 2005
Preliminary Specification
Recommended for new Designs
Delivery Options
!
Please contact our sales office for current delivery
times.
Description
•
A series of Lead Free, surface mountable TCXO /
TCVCXO for medium to high volume 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
0.3ppm performance over an extended temperature
range. Its ability to function down to a supply voltage
of 2.4V and low power consumption makes it
particularly suitable for mobile applications.
Frequency
!
Standard: 10.0 (HCMOS only), 12.688375, 12.8, 13,
14.4, 16, 16.367, 16.384, 16.8, 19.2, 19.44, 20, 24,
24.5535, 26, 32.768, 33.6, 36, 38.88 and 40 MHz
!
Optional Range 1.5 to 52 MHz
Waveform
!
Standard
!
Square HCMOS 15pF load
!
Clipped sinewave(CS) 10kΩ // 10pF, DC-
coupled
Ageing
•
±1ppm maximum in first year, frequency
≤
20MHz
•
±2ppm maximum in first year, frequency
>
20MHz
•
±3ppm maximum for 10 years, frequency
≤
20MHz
•
±5ppm maximum for 10 years, frequency
>
20MHz
•
±1ppm maximum after reflow
Frequency Stability
•
Temperature: see table
•
Supply Voltage Variation, ±10%
HCMOS
Clipped Sinewave
•
Load Coefficient,
15pF ± 5pF (HCMOS)
10kΩ // 10pF ± 10% (CS)
±0.2ppm typ.
±0.05ppm typ.
±0.2ppm typ.
±0.05ppm typ.
Frequency Adjustment,
two options
A
Ageing adjustment by means of external Control
Voltage applied to pad 1 (standard option)
•
Range (frequency
≤
20MHz)
≥
±5ppm
•
Range (frequency > 20MHz)
≥
±7ppm
•
Linearity
≤
2%
•
Slope
Positive
≥
100kΩ
•
Input resistance
•
Modulation bandwidth
≥
2kHz
•
Standard control voltage range 1.5V±1V
B
No frequency adjustment
•
Initial calibration
≤
±1.0ppm
Storage Temperature Range
•
-55 to +125°C
Environmental Specification
•
Vibration: IEC 60068-2-6, test Fc, procedure B4: 10-
60Hz 1.5 mm displacement, 60-2000Hz at 20gn, 4
hours in each of three mutually perpendicular axes
at 1 octave per minute.
•
Shock: IEC 60068-2-27, test Ea: 1500gn
acceleration for 0.5ms duration, Half-sine pulse, 3
shocks in each direction along three mutually
perpendicular axes.
•
Soldering: SMD Product suitable for Reflow
soldering. Peak temperature 260°C. Maximum time
above 220°C, 60 sec.
•
Marking: Laser Marked
•
RoHS: Parts are fully compliant with the European
Union directive 2002/95/EC on the restriction of the
use of certain hazardous substances in electrical
and electronic equipment. Note: These RoHS
compliant parts are suitable for assembly using both
Lead-free solders and Tin/Lead solders.
!
Optional
!
Square ACMOS 50pF max. load
!
Sinewave 10kΩ // 10pF, DC-coupled
Supply Voltage
•
Operating range 2.4 to 6.0V, see table.
Current Consumption (typically)
•
HCMOS
1+Frequency(MHz)*Supply(V)*{Load(pF)+15}* 10-3
mA, e.g. 20MHz, 3.3V, 15pF
⇒
3 mA
•
Clipped Sinewave
1+Frequency(MHz)*1.2*{Load(pF)+30}*10-3 mA
e.g. 20MHz, 10pF
⇒
2 mA
Package Outline
•
SMD (surface mount device), ceramic carrier, nom.
dimensions 5.0 x 3.2 x 1.6mm
•
Optional low profile, nom dimensions 5.0 x 3.2 x
1.4mm
www.cmac.com
1/3
Marking,
includes
•
CMAC
•
Manufacturing identifier (xx)
•
Pad 1 / Static sensitivity identifier (Triangle)
•
Part Number (Four digits)
•
Device date code (YW)
Typical Phase Noise at 14.4 MHz
CMAC xx
∆0000
YW
Outline in mm
5.0±0.2
CMAC XX
4000CF
3.2±0.2
Recommended PCB patern
4.5
Reflow Solder Profile
1.8 max
10nF
0.4
3.6
1.2
1.0
1
1.3
2
4
3
Pad
1
2
3
4
Function
Voltage Control (leave unconnected in case the
'no frequency adjust' option has been ordered)
Ground
Output
Supply Voltage, Vs
+Vs
2.5
10nF
Test Circuit
DC cut*
OUTPUT
4
3
Low Profile option, 1.6mm max height.
Note:
for correct operation a 10nF supply de-coupling
capacitor should be placed next to the device, as shown
above. If an AC coupled output is required a 10nF
should be placed in series with output pad 3.
Output Waveform - HCMOS
10nF
VS
10nF
OUT
CFPT-9300
VCXO
GN D
RL*
CL*
1
Voltage Control
GND
*DC
cut capacitor required for AC coupled Clipped
sinewave.
*Load
15pF (HCMOS) or 10kΩ // 10pF (Clipped
Sinewave), inclusive of probe and jig capacitance.
www.cmac.com
2/3
2
Phase Noise (typical figures)
Frequency
14.4MHz
10Hz
-95 dBc/Hz
Frequency offset from carrier
100Hz
1kHz
10kHz
-115 dBc/Hz
-135 dBc/Hz
-140 dBc/Hz
Duty cycle
45/55%
-
100kHz
-145 dBc/Hz
Model
Number
CFPT-9301
CFPT-9302
Electrical Specification – limiting values when measured in test circuit
Frequency
Supply
Output
Output
Rise Time (tr) Fall time (tf)
Range
Voltage
Waveform
Levels
8ns
8ns
1.5MHz to
Square
3.3V±10%
Voh
≥
90%Vs
52.0MHz
HCMOS 15pF Vol
≤
10%Vs
12.0MHz to
Clipped
-
-
3.0V±10%
Vpk-pk
≥
0.8V
52.0MHz
Sinewave
10kΩ//10pF
Frequency Stability Available Over Operating Temperature Ranges
Frequency Stability vs Operating Temperature Range
Operating
Temperature
±
0.2ppm
±
0.3ppm
±
0.5ppm
Ranges
-20 to 70°C
°
-40 to 85°C
°
Ordering Example
Code MS*
-
Code AS*
Code AX*
14.4MHz
Code ES
Code EX*
CFPT-9301
±
1.0ppm
Code FS
Code FX
FX A
±
2.0ppm
Code GS
Code GX
Frequency
Model No
Frequency Stability vs Operating Temperature Code
Frequency Adjustment Code
Note:
*Codes
may not be available for all frequencies
Minimum Order Information Required
•
Frequency + Model Number + Frequency Stability vs Operating Temperature Range Code + Frequency Adjustment
Code
OR
•
Discrete Part Number (ExxxxLF)
Custom Specifications
Non-standard requirements like high drive ACMOS output, low harmonic sinewave output, low profile outline, different supply
and control voltages, high frequency pulling, different stabilities and temperature ranges may be available upon request.
Please contact our sales office to discuss your requirements.
www.cmac.com
3/3
Embedded System
京公网安备 11010802033920号
EEWORLD
