Product Data Sheet
OSC Series
Ultra Miniature TCXO s
Features
Low Cost
3.0 or 5.0 Vdc Option
Reflow Solderable
<2.2 mm Height
Voltage Tune Option
Applications
Wireless handsets, PCS, GSM, Cellular
PCMCIA Applications
GPS
Description
Vectron International has introduced a series of low-pro-
file, low cost,
surface mount, Temperature Compensated
Crystal Oscillators (TCXOs)
available in frequencies
from 10 MHz to 25 MHz.
The OSC series low-profile (0.09 inch maximum height),
surface mount TCXOs can be mounted using the stan-
dard convection reflow process. The units feature a
PPM frequency vs. temperature characteristic over a
to operating range and operate from a
3.0V or 5V supply. Current drain <2.0 mA. Aging
<1ppm/year and phase noise is -125 dBc/Hz at 100 Hz
and -150 dbc/Hz at 100 kHz.
The OSC series of TCXOs and TCVCXOs has been
designed for pick-and-place mounting and reflow sol-
dering. Units are available on tape-and-reel at no addi-
tional charge. The reel size is 2000 pcs. and is compati-
ble with EIAJ-1009B standards. The low-cost, miniature
units are ideal for wireless handsets, PCMCIA applica-
tions, and GPS receivers.
OSC Series Ultra Miniature TCXO s
Vectron International 166 Glover Avenue, Norwalk, CT 06856 Tel: 1-88-VECTRON-1 Fax: 1-888-FAX-VECTRON
Option A = +5 Vdc Option B= +3 Vdc
Frequency range: 10 MHz to 25 MHz
Stability Options: 1 = ppm -20 to
(relative to 2 = ppm -30 to
3 = ppm -30 to
4 = ppm -40 to
Stability vs. Supply ppm vs B+ of
Aging (typical): < 1.0 ppm/year at
Input Voltage: +5.0 Vdc +3.0 Vdc
Current: <1.5 mA (10.0 to 16.8 MHz).
<2.0 mA (16.8 to 20.0 MHz).
Output:
+5.0 Vdc = 1.0 VP-P minimum
+3.0 Vdc = 0.7 VP-P minimum
Clipped Sinewave
Load: 10 K /10pf
Mechanical trim: PPM min.
Trim options: 0 = Mechanical trim, no VCO
1 = ppm VC & mechanical
2 = Voltage trim only ppm min.
Voltage Control
Input Impedence: 100K minimum
Supply Voltage: +5.0 Vdc +3.0 Vdc
Control Voltage Range: +0.5Vdc to +4.5Vdc +0.5Vdc to +2.5Vdc
Frequency Tolerance at ppm at +2.5 Vdc ppm at +1.5 Vdc
Start-up time: <10 mS (typical) to within PPM
Harmonics:
2nd harmonic > 3 dBc down
3rd harmonic > 6 dBc down
Other > 10 dBc down
Phase Noise (typical): -80 dBc/Hz max. at 10 Hz offset
at 10 MHz -125 dBc/Hz max. at 100 Hz offset
-145 dBc/Hz max. at 1 KHz offset
-148 dBc/Hz max. at 10 KHz offset
-150 dBc/Hz max. at 100 KHz offset
2
Performance Characteristics
Parameter Characteristics
OSC Series Ultra Miniature TCXO s
Vectron International 166 Glover Avenue, Norwalk, CT 06856 Tel: 1-88-VECTRON-1 Fax: 1-888-FAX-VECTRON
Terminal #1
identifier
0.025 (0.7)
4 places
0.050 (1.3)
4 places
0.040 (1.2)
4 places
0.300
(7.62)
0.020
(0.5)
0.09
(2.2)
max
0.055 (1.4)
2 places
Frequency
adjust
access
0.47
(11.8)
max
0.39
(9.9)
max
1
23
4
1
23
4
1.9mm
8.4mm
7.62mm
1.9mm
1.4mm 1.4mm
Model OSC
Land Pattern Convection Reflow Profile
warm-up
>30 sec. pre-heating
50 to 90 sec at reflow
20 to 40 soc
The OSC series of TCXO s and VCTCXO s has
been designed for pick and place and reflow sol-
dering. Units are available on
Tape and Reel
at
no additional charge when ordering a complete
reel. The reel size is 2000 pcs and is compatible
with EIAJ-1009B standards. The suggested
reflow profile is shown below. The TCXO may be
reflowed two times. Frequency shift as a result of
reflow will be <1.0PPM. Units should not be
adjusted to center frequencies until at least 2
hours after reflow to allow the crystals to stabilize.
The OSC footprint is compatible with many of the
previous generation 6 pin leaded TCXO s. Our
OSE
mod el is the same size as the OSC except it
provides the two additional pads to match pad con-
nections of 6 pin leaded TCXO s and VCTCXO s.
TCXO s are precision subsystems with tolerances
measured to Non-hermeti-
cally sealed TCXO s should not be subjected to a
wash process that will immerse the TCXO in sol-
vents.
No clean
is the recommended procedure.
PIN 1 = VC or N/C
PIN 2 = GROUND
PIN 3 = OUTPUT
PIN 4 = B+
3
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 USA 2/99
www.vectron.com
4
Visit Our Website at
www.vectron.com
10.0 12.8 13.0 14.4 15.56
16.0 19.2 19.98 20.0 25.0
Standard Frequencies* (MHz)
Order Information
How To Order
OSC-
Stability Code
(from page 2)
Input Voltage
A = +5.0 Vdc <2.0 mA MAX.
B = +3.0 Vdc
<1.5 mA (10.0 to 16.8 MHz)
<2.0 mA (16.8 to 20.0 MHz)
at
Frequency
Trim Option
0 = Mechanical trim, no VCO
1 = ppm VC & mechanical
2 = Voltage trim only ppm min.
Example of typical P/N
OSC-3B2 19.2 MHz
3 = ppm
B = +3.0 Vdc
2 = Voltage Tune
no mechanical trimmer
For additional information please contact:
OSC Series Ultra Miniature TCXO s
