Data Sheet

CCSO-914X-245.760
True SineWave
SAW Based Clock Oscillator
9×14mm SMD
Ultra-Low Phase Noise 245.760 MHz SAW Clock
5 Volt
Model CCSO-914X-245.760 is a 245.760 MHz SAW (surface acoustic wave) Clock
Oscillator (CCSO). SAW crystal technology provides low-noise and low-jitter
performance with true sinewave output. Features include -150 dBc/Hz phase noise at
10kHz offset, 5V input voltage, -40°C to +85°C operating temperature, FR5 PCB and
9×14 mm SMT package. The oscillator has no sub-harmonic and the second harmonic is
typically -20dBc.
Applications include:
System Clock for Network Clock Generator/Synchronizer, Clock for DDS, Test and
Measurement, Avionics, Point-to-Point Radios, and Multi-point Radios.
Rev: B
Date: 04-Sep-2015
Page 1 of 3
CRYSTEK
CORPORATION
12730 Commonwealth Drive • Fort Myers, Florida 33913
Phone: 239-561-3311 • 800-237-3061
Fax: 239-561-1025 • www.crystek.com
CCSO-914X-245.760
True SineWave
SAW Based Clock Oscillator
9×14mm SMD
5 Volt
Frequency:
Temperature Range:
Storage:
Input Voltage:
245.760 MHz
-40°C to +85°C
-45°C to 90°C
5.0V ± 0.25V
Frequency vs Temperature:
Input Current:
Output:
Output Power:
Start-Up Time:
2nd Harmonic:
Sub-Harmonics:
Jitter:
SONET OC-48(12kHz~80MHz)
±150ppm Typical
25mA Typical, 35mA Max
True SineWave
+8dBm Min into 50 Ω Load
2mSec Typical, 10mSec Max
-20dBc Typical, -15dBc Max
None
17fS RMS Typical
Phase Noise Typical:
1kHz
10kHz
100kHz
1MHz
10MHz
-120 dBc/Hz
-150 dBc/Hz
-160 dBc/Hz
-165 dBc/Hz
-170 dBc/Hz
G-sensitivity:
0.9×10-9 per g
0.090
(2.29)
SUGGESTED PAD LAYOUT
0.040
(1.01)
0.050
(1.27)
0.560
(14.2)
0.360
(9.14)
CRYSTEK
CCSO-914X
245.76 MHz
Date Code
0.090
(2.29)
0.180
(4.57)
0.125
(3.18)
0.560
(14.2)
0.210
(5.3)
CRYSTEK
CORPORATION
1
2
4
3
0.100
(2.54)
0.280
(7.11)
0.040
(1.02)
0.050
(1.27)
0.280
(7.11)
0.200
(5.08)
0.200
(5.08)
Pad
Connection
1
2
3
4
N/C
GND
Output
Vdd
Rev: B
Date: 04-Sep-2015
Page 2 of 3
12730 Commonwealth Drive • Fort Myers, Florida 33913
Phone: 239-561-3311 • 800-237-3061
Fax: 239-561-1025 • www.crystek.com
CCSO-914X-245.760
True SineWave
SAW Based Clock Oscillator
9×14mm SMD
5 Volt
Frequency vs Temperature
RECOMMENDED REFLOW SOLDERING PROFILE
TEMPERATURE
Ramp-Up
3°C/Sec Max.
260°C
Critical
Temperature Zone
Ramp-Down
6°C/Sec.
217°C
200°C
150°C
Preheat
180 Secs. Max.
8 Minutes Max.
90 Secs. Max.
260°C for
10 Secs. Max.
NOTE: Reflow Profile with 240°C peak also acceptable.
Parameter
Conditions
Mechanical Shock
MIL-STD-883, Method 2002, Condition B
Mechanical Vibration
MIL-STD-883, Method 2007, Condition A
Solderability
MIL-STD-883, Method 2003
Solvent Resistance
MIL-STD-202, Method 215
Resistance to Soldering Heat
MIL-STD-202, Method 210, Condition I or J
Thermal Shock
MIL-STD-883, Method 1011, Condition A
Moisture Resistance
MIL-STD-883, Method 1004
CRYSTEK
CORPORATION
Rev: B
Date: 04-Sep-2015
Page 3 of 3
12730 Commonwealth Drive • Fort Myers, Florida 33913
Phone: 239-561-3311 • 800-237-3061
Fax: 239-561-1025 • www.crystek.com