MODEL 1914
Miniature OCXO
9x14mm
FEATURES
•
•
•
•
•
•
•
•
•
Industry Standard 9x14mm SMT Footprint
3.3V or 5.0V operation
Commercial and Industrial temp. range
LVCMOS output
Frequency Stability and Holdover to Stratum 3
requirements of GR-1244
Low Phase Noise
Tape & Reel Packaging
Optional Voltage Control
Fully compliant to RoHS Directive 2002/95/EC
DESCRIPTION
The CTS model 1914 is a low cost, small size,
high performance SMT OCXO.
APPLICATIONS:
Telecom Switching
Wireless Communication
ELECTRICAL SPECIFICATIONS
Parameter
Operating Conditions
Operating Temperature Range
Supply Voltage
Supply Power:
Warm-Up:
Steady State:
Output Load
T
OP
3.3V – Standard
5.0V – Available
P
max
P
SS
@ +25°C (still air)
Conditions & Remarks
Min
-40
3.135
4.75
-
-
5
Typical
-
3.300
5.0
-
-
-
Max
+85
3.465
5.25
2.4
0.7
15
Unit
°C
Vdc
W
W
pF
Frequency Stability
Standard Frequencies
(Consult factory for different
frequencies)
Initial Frequency Tolerance
Freq. vs Temperature (pk-pk)
Freq. vs Supply Voltage
Freq. vs Load
Freq. vs Time (Aging)
(Specifications noted apply for 3.3V supply and at +25°C (still air) unless otherwise noted)
10, 12.8,
-
-
f
NOM
16.384, 19.2,
19.44, 20
@ 25°C , at time of shipment
0°C to 70°C - Standard
-40°C to 85°C - Available
V
CC
± 5%
For ± 5% change
per day (after 30 days)
15 years
Standard: All causes, 24hrs
Available: (Constant voltage)
30 to 50°C (24 hrs)
(5 days)
0 to 70°C (14 days)
-
-
-
-
-
-
-
± 0.100
-
± 0.030
± 0.005
± 0.005
± 2.500
-
± 0.200
0.100
0.280
-
-
-
-
0.370
0.040
0.100
0.250
MHz
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
Holdover Stability (pk-pk)
Doc name : Model 1914 datasheet
Page 1 - 5
X5
٠ ٠ ٠
CTS Electronic Components, Inc.
٠
171 Covington Drive
٠
Bloomingdale, IL 60108
٠
U.S.A.
٠ ٠ ٠
٠ ٠ ٠
www.ctscorp.com
٠ ٠ ٠
MODEL 1914
Miniature OCXO
9x14mm
Parameter
Total Free-Running Accuracy
Short Term Frequency Stability
Warm-Up Time
Conditions & Remarks
all causes for 15 years (∆f/f
NOM
)
Allan Deviation
0.1 sec tau
1.0 sec tau
Min
-
Typical
-
Max
± 4.600
0.1
0.1
Unit
ppm
ppb
minutes
@ 25°C, to final frequency
-
2
5
Output Parameters
Output Signal
Amplitude
Rise/Fall Times
Duty Cycle
Spurious
Non and Sub-harmonics
10Hz
100Hz
Phase Noise
(Typical @ 10 Mhz)
1kHz
10kHz
100kHz
Integrated jitter
∆f
= 12 KHz thru 20 MHz
20% to 80% @ 15pf load
@ 50% of output signal
V
OL
V
OH
-
90% V
CC
-
45
-
-
-
-
-
-
-
-
LVCMOS Square Wave
-
-
-
50
-
-
-95
-125
-145
-154
-154
0.3
10% V
CC
-
3
55
-80
-100
-80
-115
-135
-145
-145
1.0
Vdc
ns
%
dBc
dBc
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
psec
Electronic Frequency Adjustment (Optional)
Control voltage
Range
Slope
Input Impedance
Linearity
Positive, monotonic
Z
IN
V
C
: Standard
Available
0.3
0.5
±9.6
-
-
-
1.65
2.5
-
-
1.0
-
3.0
4.5
-
-
-
10
M ohms
%
volts
ppm
Doc name : Model 1914 datasheet
Page 2 - 5
X5
٠ ٠ ٠
CTS Electronic Components, Inc.
٠
171 Covington Drive
٠
Bloomingdale, IL 60108
٠
U.S.A.
٠ ٠ ٠
٠ ٠ ٠
www.ctscorp.com
٠ ٠ ٠
MODEL 1914
Miniature OCXO
9x14mm
MECHANICAL SPECIFICATIONS
PACKAGE DRAWING
14.3±0.1
[.563±.004]
Pad 6
Pad 5
XXMXXX
CTS
YYWW
PAD
1
2
3
4
5
6
CONNECTION
EFC (Optional)
N/C
GROUND/CASE
OUTPUT
N/C
Supply Voltage - Vcc
Pad 4
9.3±0.1
[.366±.004]
Pad 1
Pad 2
PAD 1 MARK
Pad 3
7.0 MAX
[.275]
0.94
REF
[.037]
0.65
[.025]
EXPOSED CONDUCTIVE
MAY BE INTERNALLY
CONNECTED
2 PLACES
6.35
[.250]
5.89
[.232]
Pad 1
Pad 2
Pad 6
Pad 5
Pad 4
Pad 3
1.02
TYP
[.040]
BARRIER COVERING
OVER RESIST MASK
2.54
TYP
[.100]
ALL DIMENSIONS ARE IN MM [INCHES].
ALL DIMENSIONS ARE NOMINAL UNLESS OTHERWISE SPECIFIED.
LEAD TERMINATION FINISH: GOLD FLASH, <10 MICRO INCH, OVER Ni PLATED Cu.
Doc name : Model 1914 datasheet
Page 3 - 5
X5
٠ ٠ ٠
CTS Electronic Components, Inc.
٠
171 Covington Drive
٠
Bloomingdale, IL 60108
٠
U.S.A.
٠ ٠ ٠
٠ ٠ ٠
www.ctscorp.com
٠ ٠ ٠
MODEL 1914
Miniature OCXO
9x14mm
MECHANICAL SPECIFICATIONS (Continued)
SUGGESTED SOLDER PAD GEOMETRY
5.08
[.200]
1.40
TYP
[.055]
2.54
[.100]
1.27
[.050] TYP
5.64
[.222]
7.70
[.303]
7.70
[.303]
EXPOSED CONDUCTIVE
KEEPOUT AREA
2 PLACES
ALL DIMENSIONS ARE IN MM [INCHES].
ALL DIMENSIONS ARE NOMINAL.
MAXIMUM SOLDERING PROFILE
Temperature
>217°C
Time
2.5min
Note: Part is not designed to be reflowed in an inverted position.
♦
Fully compliant to RoHS Directive 2002/95/EC
♦
Co-Planarity (from seating plane): max. 0.1mm
♦
MSL: level 1
♦
Device quantity is 500 pcs maximum per 330 mm reel
260°C (Absolute max temperature)
10 sec
Doc name : Model 1914 datasheet
Page 4 - 5
X5
٠ ٠ ٠
CTS Electronic Components, Inc.
٠
171 Covington Drive
٠
Bloomingdale, IL 60108
٠
U.S.A.
٠ ٠ ٠
٠ ٠ ٠
www.ctscorp.com
٠ ٠ ٠
MODEL 1914
Miniature OCXO
9x14mm
TAPE AND REEL INFORMATION
DIMENSIONS IN MILLIMETERS
17.5
Ø13
4.0
16.0
Ø1.50
1.75
7.7
7.5
2.0
120°
14.80
14.60
24.0
Ø60
Ø330
9.90
9.70
DIRECTION OF FEED
Ø23
Device quantity is 500 pcs maximum per 330 mm reel
Doc name : Model 1914 datasheet
Page 5 - 5
X5
٠ ٠ ٠
CTS Electronic Components, Inc.
٠
171 Covington Drive
٠
Bloomingdale, IL 60108
٠
U.S.A.
٠ ٠ ٠
٠ ٠ ٠
www.ctscorp.com
٠ ٠ ٠
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