Product Data Sheet
CO-760PS Series
Surface Mount Oven Controlled Crystal Oscillators
Features
• Frequencies Available from 4.8 MHz to 61.44 MHz.
• Stability as high as ±2 x 10
-8
over -20°C to +70°C
• Aging: 5 x 10
-9
/ day to 5 x 10
-10
/ day
• Package: 0.8” x 0.8” x 0.6” (20.5 x 20.5 x 15.2 mm)
• Low Profile, Surface Mount Design
• Supply Voltage: +5 volts or +3.3 volts
Applications
• Telecommunication Systems
• Wireless Communication Equipment
• Data Communications
• Instrumentation
Description
Vectron International has introduced a series of low profile,
surface mount, oven controlled crystal oscillators (OCXOs)
available in frequencies from 4.8 MHz to 61.44 MHz.
The model CO-760PS provides exceptionally low aging
rates and high temperature stabilities and is packaged
as a surface mount device (SMD), measuring 0.8” x
0.8” x 0.6” (20.5mm x 20.5 mm x 15.2 mm).
The oscillators are available with SC or AT cut crystals
and provide an aging rate as low as 5 x 10
-10
/day with
temperature stabilities from ± 2 x 10
-8
over -20°C to
+70°C and operate from a +5V supply steady power of
1watt. The phase noise floor at 50 kHz is - 140 dBc/Hz
for AT cut crystals and - 145 dBc/Hz for SC types,
depending on the output frequency.
The product finds application in telecommunications,
data communications, frequency synthesizers, timing,
navigation, telemetry and instrumentation systems.
CO-760PS Series Surface Mount Oven Controlled Crystal Oscillators
Performance Characteristics
Parameter
Characteristic
CO-764/766/767PS Series
(AT cut crystal)
Frequency:
CO-767/768PS Series
(SC cut crystal)
4.8 MHz to 61.44 MHz with
5, 10, 13, 16.384, 20, 20.48, 26, 38.88, 52 and 61.44 MHz standard
Temperature stability:
Temperature Range B: 0°C to +50°C
Temperature Range D: -20°C to +70°C
Temperature Range J: -10°C to +75°C
Aging:
B38: ±3 x 10
-8
D58: ±5 x 10
-8
J17: ±1 x 10
-7
CO-764PS: 5 x 10
-9
/day (5 x 10
-7
/year)
CO-766PS 3 x 10
-9
/day (3 x 10
-7
/year)
CO-767PS 1 x 10
-9
/day (1 x 10
-7
/year)
to within 1 x 10
-7
of final frequency
in 5 minutes @ 25°C
5 x 10
-9
per percent
1 x 10
-10
/second
B18: ±1 x 10
-8
D28: ±2 x 10
-8
J58: ±5 x 10
-8
CO-767PS: 1 x 10
-9
/day (1 x 10
-7
/year)
CO-768PS: 5 x 10
-10
/day (5 x 10
-8
/year)
optional for some frequencies
to within 1 x 10
-8
of final
frequency in 5 minutes @ 25°C
2 x 10
-9
per percent
5 x 10
-11
/second
Warm-up:
(after 24 hours off)
Frequency vs. Supply (±5%):
Short Term (Allan Variance):
Output level:
HCMOS/TTL Standard, >0.5 Vrms/50Ω (+7 dBm) optional
(LVCMOS output with +3.3 volt power supply)
-25 dBc
+5 Vdc ±5%; 2.5W peak @ -20°C; 1.0W stabilized at 25°C
(+3.3 VdC ±5%, optional)
±5 x 10
-6
typical for 0 to 4V control
-100 dBc/Hz @ 10 Hz offset
-140 dBc/Hz @ 50 kHz offset
±2 x 10
-6
typical for 0 to 4V control
-110 dBc/Hz @ 10 Hz offset
-145 dBc/Hz @ 50 kHz offset
Harmonics (sinewave):
Power supply:
Frequency adjustment:
Phase Noise:
(typical)
Size:
Base:
Reflow:
0.8” x 0.8” x 0.6” max. (20.5 x 20.5 x 15.2mm)
FR4 material with Gull wing leads
240 (+5, -0)°C for 10 to 40 seconds
Vectron International •
267 Lowell Road, Hudson, NH 03051
• Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON
2
CO-760PS Series Surface Mount Oven Controlled Crystal Oscillators
Outline Drawing
Pin Configuration
1. RF-output
2. Ground, case
3. Control voltage V
C
4. Reference voltage output V
REF
5. N.C.
6. Ground, case
7. Supply voltage V
S
in
(mm)
Recommended Soldering Profile
Vectron International •
267 Lowell Road, Hudson, NH 03051
• Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON
3
CO-760PS Series Surface Mount Oven Controlled Crystal Oscillators
Tape and Reel
Note: Dimensions in mm
How To Order
CO-76
4 = 5x10
-9
/day
6 = 3x10
-9
/day
7= 1x10
-9
/day
8= 5x10
-10
/day
Aging
(5x10
-7
/yr)
(3x10
-7
/yr)
(1x10
-7
/yr)
(5x10
-8
/yr)
PS
Frequency
Temperature Stability
(see page 2)
(eg. B58= ±5x10
-8
over 0°C to +50°C)
optional for some frequencies
Output Option
1: HCMOS/LSTTL
2: Sinewave
3: LVCMOS with
+3.3 volt supply
www.vectron.com
For additional information please contact:
USA:
Vectron International • 267 Lowell Road Hudson, NH 03051 . . . . . .
Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON
EUROPE:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tel:
49 (0) 3328 4784 17 * Fax: 49 (0) 3328 4784 30
ASIA:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tel:
+86 21 28909740 / 41 / 42 Fax: +86 21 28909240 / 28909999
Vectron International reserves the right to make changes to the product(s) and/or information contained herein without notice.
No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Printed in the USA 12/99,
8/02
4
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