CTS
Reeves
FREQUENCY PRODUCTS
Model 108
Mini TH/SMT OCXO
CRYSTALS
Features:
• Frequency Range: 5 to 50 MHz
Surface Mount or Thru Hole Options
• Miniature Package Size
• Low Cost Options Available
• Able to Withstand 240°C Reflow
Soldering
• Electronic Frequency Adjust Standard
• Wide Range of Performance Options
Weighing in at less than 15 grams and less than two thirds of a cubic inch, the Model 108 is
capable of covering a wide range of performance through the use of precision AT crystals and
newer SC cut crystals. The 108 series is able to meet the requirements of GSM systems,
Private Branch Exchange (PBX) and Central Office Switch (COS) applications. Its size and
performance also make it ideal for Microwave and Synthesizer applications that require more
economy while maintaining a high level of performance.
CLOCKS
VCXOs
Electrical Specifications:
Parameter
Supply Voltage
(Vdd)
Operating
Frequency Range (MHz)
5 to 50 MHz
12 Vdc
±5%
(+5 Vdc Optional)
350 ma. Max.
120 ma. Typ.
HCMOS Compatible
Sinewave 0 dBm Min.
15 pf / 50
Ω
-25 dBc Max.
±1
x 10
-7
/ 5 Min.
±1
x 10
-8
/ 30 Min.
Offset
Level (dBc) Standard
Low Noise
10 Hz
-100
-115
100 Hz
-120
-135
1 kHz
-140
-150
10 kHz
-150
-155
Sufficient for 10 years Aging (Range is Option Dependent)
0 to 5 Vdc
Supply Current (@ 25°C) Warm-up
Steady State
H
Output
S
Load
Harmonics
Warm-up (@ 25°C)
Ref. to Freq. at 1 hr.
H/S
S
TCXOs
Phase Noise (1 Hz Bandwidth)
(Typical @ 10 MHz)
OCXOs
Electrical freq. adjust
(negative slope)
400 REIMANN AVE.
•
SANDWICH, IL 60548
Phone: 815-786-8411
•
Fax: 815-786-3600
•
E-Mail: www.ctsreeves.com
103
CTS
Reeves
CRYSTALS
FREQUENCY PRODUCTS
Model 108
Mini TH/SMT OCXO
0.920
Outline Drawing and
Pin Connections:
0.019 DIA. (9-PL)
0.016
SMT Package
R 0.018
0.058
0.500
MAX
Pin Connections
PIN
1
2
3
4
5
6
7
8
9
FUNCTION
RF OUT
N/C
GND/CASE
N/C
EFC
REF VOLT OUT
N/C
N/C
5V SUPPLY
0.125
5
4
6
7
8
0.250
9
0.500
0.996
±.003
0.750 cent.
3
0.125
2
1
0.076
CLOCKS
0.080
0.107
0.750 CENT.
0.996±.003
0.084 R (3-PL)
0.076
0.920
Thru Hole
0.500
MAX
.25”
MIN
VCXOs
Mechanical Specifications:
Case:
CRS, Hot Tin Dipped
Leads:
Nickel plated with solder coating
Seal:
Solder seal
Leak Test:
Leak rate less than 5 x 10
-5
atmosphere-cc/sec of helium
Solderability:
95% solder coverage, using RMA flux 63
SN / 37 Pb solder at +245°C
±5°C
Temperature:
Operating: See chart
Storage: -55° to 85°C
Reflow: 240°C, 10 Sec
Vibration:
10 G's rms, 20 to 500 Hz
Mechanical Shock:
100 G's 5ms pulse (3 shock/plane)
TCXOs
Ordering Information:
Model Type 108 ___ ___ ___ ___ ___ ___ ___
Temp. Range
Stability
Aging
Phase Noise
±5
x 10
-8
D
X
X
X
X
Output Type
±1
x 10
-7
E
X
X
X
Pkg. Type
Frequency
Output
HCMOS
Sinewave
Code
H
S
Temp Stability
±5
x 10
-9
Temp Range Code
A
0° to 50°C A
X
0° to 70°C B
-30° to 70°C C
-40° to +85°C D
OCXOs
±1
x 10
-8
B
X
X
±2
x 10
-8
C
X
X
X
X
1
st
Year Aging Code
±0.5
ppm
A
±0.3
ppm
B
±0.1
ppm
C
±0.05
ppm
D
Phase Noise Code
Std
A
Low Noise
B
Pkg. Type
T
Thru Hole
S
SMT
Note: Not all Options are Available at all Frequencies.
Consult Factory for Details.
104
400 REIMANN AVE.
•
SANDWICH, IL 60548
Phone: 815-786-8411
•
Fax: 815-786-3600
•
E-Mail: www.ctsreeves.com
DIY/Open Source Hardware
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