CTS Reeves
FREQUENCY PRODUCTS
CRYSTALS CLOCKS VCXOs TCXOs OCXOs
103
400 REIMANN AVE. • SANDWICH, IL 60548
Phone: 815-786-8411 • Fax: 815-786-3600 • E-Mail: www.ctsreeves.com
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 Voltage
(Vdd) Operating
Supply Current (@ 25°C) Warm-up
Steady State
Output
Load
Harmonics
Warm-up (@ 25°C)
Ref. to Freq. at 1 hr.
Phase Noise (1 Hz Bandwidth)
(Typical @ 10 MHz)
Electrical freq. adjust
(negative slope)
Parameter
Electrical Specifications:
Model 108
Mini TH/SMT OCXO
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.
H
S
H / S
S
104
CTS Reeves
FREQUENCY PRODUCTS
400 REIMANN AVE. • SANDWICH, IL 60548
Phone: 815-786-8411 • Fax: 815-786-3600 • E-Mail: www.ctsreeves.com
CRYSTALS
CLOCKSVCXOsTCXOs
OCXOs
Temp Stability
±5 x 10
-9
±1 x 10
-8
±2 x 10
-8
±5 x 10
-8
±1 x 10
-7
Temp Range
Code
ABCDE
0° to 50°CAXXXX
0° to 70°CB XXXX
-30° to 70°CC X X X
-40° to +85°CD X X X
1
st
Year Aging Code
±0.5 ppm A
±0.3 ppm B
±0.1 ppm C
±0.05 ppm D
Outline Drawing and
Pin Connections:
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)
Note: Not all Options are Available at all Frequencies.
Consult Factory for Details.
Phase Noise Code
Std A
Low Noise B
Output Code
HCMOS H
Sinewave S
Ordering Information:
0.996 ±.003
0.750 cent.
0.125
0.125
0.500
0.250
0.084
0.076 R (3-PL)
0.996±.003
0.750 CENT.
0.019
0.016 DIA. (9-PL)
R 0.018
1
2
3
4
56
7
8
9
Model 108
Mini TH/SMT OCXO
0.076
0.107
0.080
0.058
0.920
0.500
MAX
SMT Package
Thru Hole
0.920
0.500
MAX
.25”
MIN
Pkg. Type
T Thru Hole
S SMT
AgingStabilityTemp. Range
Model Type 108 ___ ___ ___ ___ ___ ___ ___
Phase Noise Output Type Pkg. Type Frequency
Pin Connections
PIN FUNCTION
1 RF OUT
2 N/C
3 GND/CASE
4 N/C
5 EFC
6 REF VOLT OUT
7 N/C
8 N/C
9 5V SUPPLY
