LXOM OSCILLATOR
10 kHz to 2.1 MHz*
™
Low Power Crystal Oscillator
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.
-32k
2T
*Consult factory for other frequencies.
PACKAGE DIMENSIONS
FEATURES
D
E
F
H
G
PIN
NO.4
Low power consumption
Low aging
CMOS compatible
Double hermetically sealed package
Full military testing available
3 Volt operation available
C
PIN
NO.1
A
APPLICATIONS
B
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
PIN
NO.8
PIN
NO.5
DIM
A
B
C
D
E
F
G
H
INCHES
0 .505 MAX.
_
0 .300
+
0.005
mm
12.83 MAX.
_
7.62
+
0.13
0 .430 TYP.
0 .225 MAX.
0 .025 MAX.
0 .150 MIN.
_
0 .018
+
0.002
10.92 TYP.
5.72 MAX.
0.64 TYP.
3.81 MIN.
_
0.46
+
0.05
0 .063 TYP.
1.60 TYP.
* Position of bumps for reference only
10145- Rev D
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
SPECIFICATIONS: LXOM 32.768 kHz
ABSOLUTE MAXIMUM RATINGS
Specifications are typical at 25oC unless otherwise noted.
Specifications are subject to change without notice.
Supply Voltage (V
DD
)
Calibration Tolerance*
5V
A:
B:
C:
Frequency Stability**
0 C to +50 C
-20
O
C to+70
O
C
Voltage Coefficient
Aging
Shock
Vibration
O
O
Supply Voltage V
DD
Storage Temperature
-0.3V to 7V
-55
O
C to +125
O
C
+
_
10% (3.3V available)
+
_
.001% (10ppm)
+
_
+
_
ELECTRICAL CHARACTERISTICS
LXO-M-32.768 kHz
.0025%
.01%
Typ.
MAX.
Typ.
MAX.
+
_
+
_
All parameters are measured at ambient temperature
with a 10M and 10pF load at 5V.
SYMBOL PARAMETER
MIN.
4.8
TYP. MAX. UNIT
4.95
0.05 0.2
12
12
40
50
7
5
25
25
60
15
10
V
V
nsec.
nsec.
%
A
A
-0.0025%
-0.004%
-0.007%
-0.01%
25ppm
40ppm
+
_
70ppm
+
_
100ppm
V
OH
V
OL
t
r
t
f
SYM
I
DD
Output Voltage Hi
Output Voltage Lo
Rise Time (10%-90%)
Fall Time (10%-90%)
Duty Cycle
Supply Current
V
DD
=5V
V
DD
=3V
1 ppm/V Typ.
3 ppm/V MAX.
1 ppm/year Typ.
3 ppm/year MAX.
1000g, 1msec.,1/2 sine
3 ppm MAX.
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,
PIN CONNECTIONS
Pin
1
4
5
8
Connection
INH (Tri-State) or NC
Ground
Output
V
DD
PACKAGING
LXOM -Tube Pack (Standard)
LXOM-32.768 kHz
OUTPUT WAVE FORM
CURRENT (uA)
12
10
8
6
4
2
3
4
V (Volts)
DD
V
DD
V
OH
90%*
10%*
5
6
7
V
OL
0
* Of
V
DD
t
r
t
f
HOW TO ORDER LXOM CRYSTAL OSCILLATORS
LXOM
S
“S” if special or
custom design.
Blank if Std.
*Other calibration fill in ppm
Frequencies other than 32.768 kHz
_
A:
+
0.01%
_
B:
+
0.03%
_
C:
+
0.1%
32.768 kHz
Frequency
T = Tri-State
Blank = Pin1
no connection
(
A
*Calibration
Tolerance
@25
O
C
(A)
(B)
(C)
/
I
)
Temp. Range:
C = Commercial
I = Industrial
M = Military
S = Specify
10145 - Rev D
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
ADI Reference Circuit
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