STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
10145- Rev D
DESCRIPTION
The LXOM oscillator has the highest accuracy, stability and
lowest current of all STATEK oscillators. The design
consists of a CMOS-compatible hybrid circuit, packaged in
a hermetically-sealed, half-size metal DIP. Permanent,
precision tuning of the oscillator is accomplished by laser
trimming the crystal after it has been hermetically sealed in
a ceramic package and connected to the oscillator circuit.
This method of fine tuning allows for very tight calibration
tolerance and eliminates the need for a trimming capacitor,
a major source of long-term frequency drift. The
specifications and characteristics of the LXOM vary with
frequency. The characteristics of the 32.768 kHz model
are presented in this data sheet.
FEATURES
Low power consumption
Low aging
CMOS compatible
Double hermetically sealed package
Full military testing available
3 Volt operation available
APPLICATIONS
Industrial, Computer & Communications
General purpose clock oscillator
Data Logger
Remote sensor
Liquid level sensing
Medical test and diagnostics
Military
Portable field communication
Military high speed modem
Flight recorder
LXOM OSCILLATOR
10 kHz to 2.1 MHz*
Low Power Crystal Oscillator
TM
2T-32k
PACKAGE DIMENSIONS
PIN
NO.4
PIN
NO.1
PIN
NO.8
PIN
NO.5
A
B
H
G
D
C
E
F
DIM
INCHES
mm
A
0 .505 MAX.
12 .83 MAX.
B
0 .300 0.005
7 .62 0.13
C
0 .430 TYP.
10 .92 TYP.
D
0 .225 MAX.
5 .72 MAX.
E
0 .025 MAX.
0 .64 TYP.
F
0 .150 MIN.
3 .81 MIN.
G
0 .018 0.002
0 .46 0.05
H
0 .063 TYP.
1 .60 TYP.
* Position of bumps for reference only
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*Consult factory for other frequencies.
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
SPECIFICATIONS: LXOM 32.768 kHz
Specifications are typical at 25oC unless otherwise noted.
Specifications are subject to change without notice.
Supply Voltage (V
DD
)
5V 10% (3.3V available)
Calibration Tolerance*
A: .001% (10ppm)
B: .0025%
C: .01%
Frequency Stability**
0
O
C to +50
O
C
-0.0025% Typ.
25ppm
-0.004%
MAX.
40ppm
-20
O
C to+70
O
C -0.007%
Typ.
70ppm
-0.01%
MAX.
100ppm
Voltage Coefficient
1 ppm/V Typ.
3 ppm/V MAX.
Aging
1 ppm/year Typ.
3 ppm/year MAX.
Shock
1000g, 1msec.,1/2 sine
3 ppm MAX.
Vibration
10g rms, 10-2000 Hz
3 ppm MAX.
Frequency Change vs
10%Output Load Change 1 ppm MAX.
Operating Temperature -10
O
C to +70
O
C Commercial
-40
O
C to +85
O
C Industrial
-55
O
C to +125
O
C Military
* Tighter tolerances available
** Does not include calibration tolerance. Positive variations small compared
to negative variations.
TYPICAL CURRENT CONSUMPTION,
LXOM-32.768 kHz
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10145 - Rev D
ABSOLUTE MAXIMUM RATINGS
Supply Voltage V
DD
-0.3V to 7V
Storage Temperature
-55
O
C to +125
O
C
ELECTRICAL CHARACTERISTICS
LXO-M-32.768 kHz
All parameters are measured at ambient temperature
with a 10M
and 10pF load at 5V.
SYMBOL PARAMETER
MIN.
TYP.
MAX. UNIT
V
Output Voltage Hi
4.8
4.95
V
V
Output Voltage Lo
0.05
0.2
V
t
r
Rise Time (10%-90%)
12
25
nsec.
t
f
Fall Time (10%-90%)
12
25
nsec.
SYM
Duty Cycle
40
50
60
%
Supply Current
V
DD
=5V
7
15
A
V
DD
=3V
5
10
A
PIN CONNECTIONS
Pin
Connection
1
INH (Tri-State) or NC
4
Ground
5
Output
8
V
DD
PACKAGING
LXOM -Tube Pack (Standard)
OUTPUT WAVE FORM
OH
OL
V
DD
V
OH
t
r
t
f
0
V
OL
90%*
10%*
HOW TO ORDER LXOM CRYSTAL OSCILLATORS
LXOM
S
32.768 kHz
(
A
/
I
)
"S" if special or
Frequency
*Calibration
Temp. Range:
custom design.
Tolerance
C = Commercial
Blank if Std.
@25
O
C
I = Industrial
(A)
M = Military
(B)
S = Specify
(C)
* Of
V
DD
T = Tri-State
Blank = Pin1
no connection
I
DD
2
3
4
5
6
6
8
V
DD
(Volts)
CURRENT (uA)
10
12
7
4
*Other calibration fill in ppm
Frequencies other than 32.768 kHz
A:
0.01%
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B:
0.03%
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C:
0.1%
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