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Phase Noise (typical figures)
Frequency
Frequency offset from carrier
10Hz
100Hz
1kHz
10kHz
100kHz
12.8MHz
-95dBc/Hz
-115dBc/Hz
-135dBc/Hz
-140dBc/Hz
-145dBc/Hz
Electrical Specification - limiting values when measured in test circuit
Frequency Range Supply Voltage Output Waveform
Output Levels
Rise Time (tr)
Fall Time (tf)
Duty Cycle
Model Number
1.25 to 33.0MHz
3.3V ±5%
Square
HCMOS 15pF
VoH >90% Vs
VoL < 10% Vs
7ns
7ns
45/55%
CFPO-20
1.25 to 33.0MHz
5.0V±10%
Square
HCMOS 15pF
VoH >90% Vs
VoL < 10% Vs
8ns
8ns
45/55%
CFPO-21
10.0 to 33.0MHz
3.3V±5%
Clipped Sinewave
10k
Ω//10pF
Vpk-pk >0.8V
-
-
-
CFPO-22
10.0 to 33MHz
5.0V±10%
Clipped Sinewave
10k
Ω//10pF
Vpk-pk >0.8V
-
-
-
CFPO-23
Frequency Stability Available Over Operating Temperature Ranges
Operating Temperature
Ranges
Frequency Stability Vs Operating Temperature Range
±0.025ppm
±0.05ppm
±0.1ppm
±0.2ppm
-20 to 70°C
Code PS*
Code RS
Code SS
Code MS
-40 to 85°C
-
Code RX
Code SX
Code MX
Ordering Example
14.4MHz
CFPO-20 SX
A
LF
Frequency
Model No.
Frequency Stability Vs Operating Temperature Code
Frequency Adjustment
RoHS Compliance
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
+ RoHS Compliance Code
OR
■ Discrete Part Number (suffix ‘LF’ signifies RoHS compliance)
Custom Specification
Non-standard requirements like high drive ACMOS output, low harmonic sinewave output, different supply and control volt-
ages, high frequency pulling, different stabilities and temperature ranges may be available upon request. Please contact our
sales office to discuss your requirements
Europe
Tel: +44 (0)1460 270200
Fax: +44 (0)1460 72578
Website: www.cmac.com
Americas Tel: +1 919 941 9333
Fax: +1 919 941 9371
Asia
Tel: +86 755 8826 5991
Fax: +86 755 8826 5990
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