Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page 1 of 5
OX-280
Oven Controlled Crystal Oscillator
Surface Mount Package•
AT-CUT and SC_CUT Crystal Options•
Low Pro le Compact Package•
Compact Package •
Base stations•
Test equipment•
Synthesizers•
Military communication equipment•
Digital Switching•
Features Applications
OX-280
Frequency Stabilities1 (AT-Cut Crystal-Standard 10 to 160 MHz- )
Parameter Min Typical Max Units Condition
vs. operating temperature range
(referenced to +25°C)
-50
-100
-100
+50
+100
+100
ppb
ppb
ppb
-20 to +70°C
-20 to +70°C
-40 to +85°C
Options5
Initial tolerance
vs. supply voltage change
vs. load change
vs. aging / day
vs. aging / year
-0.5
-10
-10
-5
-250
+0.5
+10
+10
+5
+250
ppm
ppb
ppb
ppb
ppb
at time of shipment, nominal EFC
VS ±5% static
Load ±5% static
after 30 days of operation
after 30 days of operation
Warm-up time 5 minutes to ±100ppb of nal frequency (1 hour
reading) @ +25°C
Frequency Stabilities1 (SC-Cut Crystal-Option - 10 to 52 MHz)
vs. operating temperature range
(referenced to +25°C)
-10
-20
-20
+10
+20
+20
ppb
ppb
ppb
-20 to +70°C
-20 to +70°C
-40 to +85°C
Initial tolerance
vs. supply voltage change
vs. load change
vs. aging / day
vs. aging / year
-0.2
-2
-2
-1
-75
+0.2
+2
+2
+1
+75
ppm
ppb
ppb
ppb
ppb
at time of shipment, nominal EFC
VS ±5% static
Load ±5% static
after 30 days of operation
≤ 60 MHz; after 30 days of operation
Warm-up time 5 minutes to ±100ppb of nal frequency (1 hour
reading) @ +25°C
Performance Speci cations
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page 2 of 5
Performance Speci cations
Supply Voltage (Vs)
Parameter Min Typical Max Units Condition
Supply voltage (standard) 3.135 3.3 3.465 VDC
4.75 5.0 5.25 VDC
11.4 12.0 12.6 VDC
Power consumption 3.0 Watts during warm-up
1.0 Watts steady state @ +25°C
RF Output
Signal [standard] HCMOS
Load 15 pF
Signal Level (Vol) 0.4 VDC with Vs=3.3V and 15pF Load
Signal Level (Vol) 0.5 with Vs=5.0V & 12V and 15pF Load
Signal Level (Voh) 2.4 VDC with Vs=3.3V and 15pF Load
Signal Level (Voh) 3.5 with Vs=5.0V & 12V and 15pF Load
Duty Cycle 45 55 % @ (Voh-Vol)/2
Signal Sine Wave
Load 50 Ω
Output Power @3,3V 2 5 8 dBm 50 Ω load
Putput Power @ 5.0V 5 8 11 dBm 50 Ω load
Harmonics -30 dBm 50 Ω load
Frequency Tuning (EFC)
Tuning Range Fixed OCXO; No adjust
Option5
Tuning Range ±3.0 ±8 ppm with AT cut crystal
±1.0 ±2.5 ppm with SC cut crystal
Linearity 10%
Tuning Slope Positive
Control Voltage Range 0.0 1.4 2.8 VDC with Vs=3.3V
0.0 2.0 4.0 with Vs=5.0V
0.0 2.0 4.0 VDC with Vs=12.0V
Reference Voltage output (Vref)
Reference Voltage 2.75 2.8 2.85 VDC with Vs = 3.3 VDC
3.92 4.0 4.08 VDC with Vs = 5.0 VDC
4.9 5.0 5.1 VDC with Vs = 12 VDC
Additional Parameters
Phase Noise3
-90
-120
-140
-145
-150
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
@ 10MHz
with SC
Cut
Phase Noise3
-75
-105
-130
-140
-150
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
@ 10MHz
with AT
Cut
Weight 14 g
Processing & Packing Handling & Processing Note
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page 3 of 5
Dimensions in mm
Outline Drawing / Enclosure
OX-301
Height “H” Pin Length “L”
15 N.A
Pin Connections
1 RF Output
2 Ground (Case)
3 Electronic Frequency Control Input (EFC)
4 Reference Voltage Output
5 Oven Control Output
6 Ground (Case)
7 Supply Voltage Input (VS)
Absolute Maximum Ratings
supply voltage (Vs) 6.5 V with Vs=3.3 & 5.0 VDC
15.0 V with Vs= 12 VDC
Output Load 50 pF
Operable Temperature Range -55 +85 °C
Storage Temperature Range -55 +125 °C
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page 4 of 5
Standard Shipping Method (OX-280)
Enclosure Type Tape Width W (mm) Quantity per meter Quantity per reel Dimension P
Typ OX-401 44 37.5 280 32
Recommended Re ow Pro le
Pro le Feature Pb-Free Assembly/
Sn-Pb Assembly
Pro le Feature Pb-Free Assembly/
Sn-Pb Assembly
Average ramp-up rate (TL to TP) 3°C/second max. Time 25°C to Peak Temperature 8 minutes max.
Preheat -Temperature Min TSmin
-Temperature Min TSmax
-Time (min to max) tS
150°C
200°C
60-180 seconds
Time maintained above
-Temperature (TL)
-Time (tL)
217°C
60-150 seconds
TSmax to TL -Ramp-up Rate 3°C/second max
Time maintained above
-Temperature (TL)
-Time (tL)
217°C
60-150 seconds
Time within 5°C of actual Peak
Temperature (tP)
20-40 seconds
Peak Temperature (TP) max 260°C Ramp-down Rate 6°C/ second max
Note: All temperatures refer to topside of the package, measured on the package body surface.
*bei W ≤ 24 mm nur untere Lochreihe
∗by W≤ 24 mm only lower h ole lin e
Gurtoberseite
Tape uppe r side
Gurtunterseite
Tape buttom side
Abwickelrichtung
Unwindin g direction
Lage im Gurt
Positio n in tape
Pin 1
A
X
P
B
K
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page 5 of 5
Ordering Information
OX - 280 0 - D A E - 258 0 - 10M0000000
Product Family
OX: OCXO Package
SMD version: 280
Height
0: 15 mm
Supply Voltage
B: 12V
D: 5V
E: 3.3V
Stability Code
108: ±10ppb
208: ±20ppb
258: ±25ppb
508: ±50ppb
107: ±100ppb
Frequency
Frequency Control
0: No Tuning
1: ±1.0 to ±2.5ppm
2: ±3.0 to ±8.0ppm
Disclaimer
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. Rev: 8/2008
For Additional Information, Please Contact
USA:
Vectron International
267 Lowell Road
Hudson, NH 03051
Tel: 1.888.328.7661
Fax: 1.888.329.8328
Europe:
Vectron International
Landstrasse, D-74924
Neckarbischofsheim, Germany
Tel: +49 (0) 7268.801.100
Fax: +49 (0) 7268.801.282
Asia:
Vectron International
1F-2F, No 8 Workshop, No 308 Fenju Road
WaiGaoQiao Free Trade Zone
Pudong, Shanghai, China 200131
Tel: 86.21.5048.0777
Fax: 86.21.5048.1881
RF Output Code
A: HCMOS
E: Sinewave
Temperature Range
E: -40°C to +85°C
J: -20°C to +70°C
Notes:
Contact factory for improved stabilities or additional product options. Not all options and codes are available at all 1.
frequencies.
Unless other stated all values are valid after warm-up time and refer to typical conditions for supply voltage, frequency 2.
control voltage, load, temperature (25°C).
Phase noise degrades with increasing output frequency.3.
Subject to technical modi cation.4.
Contact factory for availability.5.
