Data Sheet

Model 149
Stratum 3E, 9x14 mm OCXO
Features






10 to 50 MHz Frequency Range
Compliant to Stratum 3E of GR-1244-CORE
Surface Mount
3.3V or 5.0V operation
Low Jitter/Phase Noise
Tape and Reel Packaging
Applications
 Telecom Switching
 Wireless Communication
 Timing over Packet
Part Dimensions:
9.7 × 14.9 x 7.0 mm
Description
The CTS Model 149 is a low cost, small size, high performance OCXO. The high quality SC Quartz Crystal used in
this OCXO offers high stability and low jitter/phase noise, making it the ideal choice for any telecommunications
system.
Ordering Information – Table 1
Model
Temp Range
Stability*
Supply Voltage
Electronic Freq
Control
Frequency Code
149
B
T
E
N
20M000
Code
Temp range
Code
Supply
A
B
C
D
G
0 to 50°C
0 to 70°C
-10 to 60°C
-20 to 70°C
-40 to 85°C
D
E
5.0V ±5%
3.3V ±5%
Code
Stability
R
T
U*
V*
±100 ppb
±50 ppb
±20 ppb
±10 ppb
* For full GR-1244 Stratum 3E holdover and wander generation
performance, choose:
Stability option U for compliance over any 25°C change, or
Stability option V for compliance over any 40°C change
Model 149 Rev. F_062016
Code
20M000
XXMXXX
Code
Spec
V
N
EFC
No EFC
Part Number Example:
149BTEN20M000
Frequency
(MHz)
20.000
XX.XXX
Standard
Frequencies
(MHz)
10.000
12.800
19.200
20.000
24.576
25.000
49.152
Page 1 of 5
©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Model 149
Stratum 3E, 9x14 mm OCXO
Electrical Specifications
Parameter
Conditions & Remarks
Min
Typical
Max
Unit
-40
3.135
4.75
3.3
5.0
85
3.465
5.25
°C
-
0.7
2.7
1
W
13.5
15
16.5
pF
10
-
50
MHz
Operating Conditions
Operating Temperature Range
TOP
Supply Voltage
VCC: 3.3V or 5.0V
Power Consumption
Warm-up
Steady State; TA = 25°C
Load
Vdc
Frequency Stability
Frequency
FNOM
Initial Frequency Tolerance
Freq. vs Temperature
(See Table 1)
Freq. vs Supply Voltage
@25°C, at time of shipment
-
-
±0.200
ppm
-40°C to 85°C (ref to +25C)
-
-
±10
ppb
VCC ±5%
-
±1
±5
ppb
Freq. vs Load
15 pf ±5%
-
±1
±5
ppb
Freq. vs Time (Aging )
After 30 days of operation
(for 19.2 MHz)
-
-
±1
±150
±1.2
ppb/day
ppb/year
ppm/10 yrs
-
-
±1.6
ppm
-
-
±50
ppb
-
-
0.05
ppb
-
-
±50
ppb
-
-
11
ppb, pk-pk
Free run accuracy
Frequency Retrace
Short Term Stability (ADEV)
Warm-up time
Holdover Stability (24 hours)
Wander Generation
All causes – 10 years
0.5 hours on after 24 hrs off,
preceded by 24 hrs on. Ref to
turn off frequency.
1.0 sec
@ 25°C, After 5 mins
referenced to the freq after 1
hour on
For any 40°C change over the
operating temperature range
(Stability options U and V. See
Table 1)
Meets Stratum 3E MTIE and TDEV per Telcordia GR-1244-CORE
Output Parameters
CMOS Output Levels
3.3V (LVCMOS)
5.0V (HCMOS)
VOL
VOH
2.4
3.0
-
0.4
0.4
-
Vdc
Rise/Fall Times
10% to 90%, 15pf load
-
-
5
ns
Duty Cycle
@50% of output signal
45
50
55
%
Model 149 Rev. F_062016
Page 2 of 5
©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Model 149
Stratum 3E, 9x14 mm OCXO
Electrical Specifications (Continued)
Parameter
Conditions & Remarks
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
100 kHz
Phase Noise
(Typical for 19.20 MHz)
Min
Typical
Max
-
-85
-115
-138
-148
-152
-154
-
0.0
0.0
±2.0
1.65
2.5
-
3.3
5.0
±4.0
-
-
-
Unit
dBc/Hz
Electronic Frequency Control - EFC (Optional)
EFC Control Voltage
VC
3.3V
5.0V
Frequency Adjust Range
Slope
Positive, monotonic
Input Impedance
ZIN
Linearity
Volts
ppm
100
-
-
Kohms
-
-
10
%
Typical Stratum 3E Wander Generation performance per Telcordia GR-1244-CORE
(locked through a 0.001Hz loop bandwidth)
Model 149 Rev. F_062016
Page 3 of 5
©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Model 149
Stratum 3E, 9x14 mm OCXO
Mechanical and Environmental
Storage Temperature Range
-55°C to +105°C
Operating Temperature Range
-40°C to +85°C
Per IPC/JEDEC J-STD-020D; >217°C, 1.5min and 245°C (Absolute max temperature), 10 secs.
Note: This product is not designed to be reflowed in an inverted position.
Reflow Profile
Mechanical Shock
100g, 6ms, 1/2 sinewave, 3 shocks each direction along 3 mutually perpendicular planes.
Drop
10 cm height, 3 times onto hard board with thickness of 3 cm. - IEC60028-2-32 test Ed.
Bumping
40g, 6mS, 4000 ±10 times in each of three mutually perpendicular axes
Random:
Frequency range: 1Hz‐4Hz‐100Hz‐200Hz
Acceleration: 0.0001g²/Hz ‐ 0.01g²/Hz ‐ 0.01g²/Hz ‐ 0.001g²/Hz
Grms=1.15g. Duration: 30 minutes (per axis)
Sine:
10 - 55 Hz, 0.75mm DA, Sweep time 30 minutes per axis
Mechanical Vibration
Thermal Shock
-40°C ~ +85°C. 0.5 hour dwells with <30 second transitions. 100 cycles
RoHS
Lead Free, and fully compliant to RoHS Directive 2011/65/EU
MSL
Level 2
Mechanical Specifications
Pad termination finish: Gold flash < 10 µ inch, over Ni plated Cu
Dimension (mm)
CTS**
149XXXX
XXMXXX
YYWWXXXXX
Model 149 Rev. F_062016
Symbol
Min
Max
A
-
14.9
B
-
9.7
C
-
7.0
D
0.9
1.1
E
1.6
1.8
F
0.9
1.1
G
2.54 nominal
H
2.54 nominal
Pad
Connection
1
Vc or N/C
2
N/C
3
Ground
4
Output
5
N/C
6
Vcc
Recommended Solder Pad Geometry
Marking Key
**
YYWWXXXXX
Mfg site code
Serial Number
(mfg date code =
first 4 digits)
Page 4 of 5
©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Model 149
Stratum 3E, 9x14 mm OCXO
Solder Reflow
Ts max to TL(Ramp-up Rate)
Preheat
Temperature Min (Ts min)
Temperature typ (Ts)
Temperature max (Ts max)
Time (tS)
Ramp-up Rate (TL to TP)
Time maintained above:
--Temperature (TL)
--Time (tL)
3°C/s max
150°C
175°C
200°C
60-120 seconds
3°C/s max
217°C
90 seconds max
245°C max for 10
Peak Temperature
seconds
Time within 5°C of peak (tP)
20 seconds
Ramp-down Rate
6°C/s max
Time 25°C to Peak Temp (t)
8 minutes max
Note: Temperatures represent device body temperature.
Packing: Tape and Reel
Model 149 Rev. F_062016
Page 5 of 5
©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
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