LXO1 OSCILLATOR
10 kHz to 2.1 MHz
Low Power Crystal Oscillator
DESCRIPTION
The LXO1 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 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 LXO1 vary with
frequency. The characteristics of the 32.768 kHz model
are presented in this data sheet.
FEATURES
Hz
1.0M
01-
LX
PACKAGE DIMENSIONS
E
F
G
H
J
A
I
Low power consumption
Low aging
CMOS compatible
Double hermetically sealed package
Full military testing available
5 V operation standard
3.3 V and 5 V operation available
Optional Tri-State
PIN
NO.14
APPLICATIONS
PIN
NO.1
D
PIN
NO.7
B
C
PIN
NO.8
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
DIM
A
B
C
D
E
F
G
H
I
J
inches
0.810 MAX.
0.510 MAX.
_
0.300
+
0.005
_
0.600
+
0.005
mm
20.57 MAX.
12.95 MAX.
_
7.62
+
0.13
_
15.24
+
0.13
0.430 TYP.
0.240 MAX.
0.040 TYP.
0.150 MIN.
_
0.018
+
0.002
10.92 TYP.
6.10 MAX.
1.02 TYP.
3.81 MIN.
_
0.46
+
0.05
0.070 TYP.
1.78 TYP.
* Position of bumps for reference only
10112- Rev E
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256
www.statek.com
SPECIFICATIONS: LXO1 32.768 kHz
ABSOLUTE MAXIMUM RATINGS
Specifications are typical at 25
O
C unless otherwise noted.
Specifications are subject to change without notice.
Supply Voltage (V
DD
)
Calibration Tolerance
1
_
5 V
+
10% (standard)
(3.3 V operation also available)
+
_
Supply Voltage
Storage Temperature
-0.3 V to 7 V
-55
O
C to +125
O
C
ELECTRICAL CHARACTERISTICS
LXO-1 32.768 kHz
10 ppm (0.001%)
+
_
25 ppm (0.0025%)
+
_
100 ppm (0.01%)
+
_
All parameters are measured at ambient temperature
with a 10MΩ and 10pF load at 5V.
SYMBOL PARAMETER
V
OH
Output Voltage Hi
Output Voltage Lo
Rise Time (10%-90%)
Fall Time (10%-90%)
Duty Cycle
Supply Current
V
DD
=5 V
V
DD
=3 V
PIN CONNECTIONS
MIN.
4.8
TYP. MAX. UNIT
4.95
0.05 0.2
12
12
50
6.5
5
25
25
60
12
10
V
V
ns
ns
%
Frequency Stability
2
0
O
C to +50
O
C
-20
O
C to +70
O
C
Voltage Coefficient
Aging
Shock
Vibration
Frequency Change vs.
10% Output Load Change
Operating Temp. Range
25 ppm Typ.
+
_
40 ppm MAX.
+
_
70 ppm Typ.
+
_
100 ppm MAX.
+
_
+
_
+
_
+
_
(0.0025%)
(0.004%)
(0.007%)
(0.01%)
V
OL
t
r
t
f
SYM
I
DD
40
1 ppm/V Typ.
3 ppm/V MAX.
1 ppm/year Typ.
3 ppm/year MAX.
µ
A
µ
A
1000 g, 1 ms,1/2 sine
+
_
3 ppm MAX.
10 g RMS, 10-2000 Hz
+
_
3 ppm MAX.
+
_
Pin
1
7
8
14
Connection
INH (Tri-State) or NC
V
ss
(Gnd)
Output
V
DD
1 ppm MAX.
-10
O
C to +70
O
C (Commercial)
-40
O
C to +85
O
C (Industrial)
-55
O
C to +125
O
C (Military)
PACKAGING
1. Tighter tolerances available
2. Does not include calibration tolerance. Positive variations small compared
to negative variations.
LXO1 -Tube Pack
OUTPUT WAVE FORM
TYPICAL CURRENT CONSUMPTION
LXO1 32.768 kHz
CURRENT (uA)
8
7
6
5
3
2
3
4
DD
V
DD
V
OH
90%*
10%*
V
OL
0
5
6
7
V (Volts)
*Of
V
DD
t
r
t
f
HOW TO ORDER LXO1 CRYSTAL OSCILLATORS
LXO1
S
“S” if special
or custom
design.
Blank if Std.
T
T = Tri-State
Blank = Pin1
no connection
32.768K
Frequency
K = kHz
M = MHz
,
+
10
Calibration
Tolerance
@ 25
O
C
(in ppm)
/
I
Temp. Range:
C = -10
O
C to +70
O
C
I
= -40
O
C to +85
O
C
M = -55
O
C to +125
O
C
S = Customer Specified
Other calibration fill in ppm.
Standard Calibration Tolerances for
frequencies other than 32.768 kHz:
1) 100 ppm (0.01%)
2) 300 ppm (0.03%)
3) 1000 ppm (0.1%)
+
10112 - Rev E
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256
www.statek.com
Analog electronics
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