STATEK LXO

LXO OSCILLATOR
10 kHz to 2.1 MHz
Low Power Crystal Oscillator
™
DESCRIPTION
The LXO oscillator has the highest accuracy and stability of
all STATEK oscillators. The design consists of a CMOScompatible 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 LXO vary
with frequency. The characteristics of the 32.768 kHz
model are presented in this data sheet.
Hz
M
2.0
0
LX
PACKAGE DIMENSIONS
FEATURES
E
Low power consumption
F
G
H
Low aging
I
J
CMOS compatible
Double hermetically sealed package
Full military testing available
5V operation standard
A
PIN
NO.1
PIN
NO.7
D
2.5V to 15V operation also available
B
C
APPLICATIONS
Industrial, Computer & Communications
PIN
NO.8
PIN
NO.14
General purpose clock oscillator
Data Logger
DIM
inches
mm
A
0.810 MAX.
20.57 MAX.
B
0.510 MAX.
12.95 MAX.
C
0.300 +_ 0.005
7.62 +_ 0.13
D
0.600 +_ 0.005
15.24 +_ 0.13
E
0.430 TYP.
10.92 TYP.
F
0.240 MAX.
6.10 MAX.
Military high speed modem
G
0.040 TYP.
1.02 TYP.
Flight recorder
H
0.150 MIN.
3.81 MIN.
Remote sensor
Liquid level sensing
Medical test and diagnostics
Military
Portable field communication
+
_
I
0.018 0.002
0.46 +_ 0.05
J
0.070 TYP.
1.78 TYP.
* Position of bumps for reference only
IS O
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
YS
90
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10110 - Rev D
SPECIFICATIONS: LXO 32.768 kHz
ABSOLUTE MAXIMUM RATINGS
O
Specifications are typical at 25 C unless otherwise noted.
Specifications are subject to change without notice.
Supply Voltage VDD
Storage Temperature
5V +_ 10% (standard)
(2.5V to 15V available)
Supply Voltage (VDD)
Calibration Tolerance1
(at 5V)
+
_
10 ppm (0.001%)
+
_
25 ppm (0.0025%)
+
_
100 ppm (0.01%)
-0.3V to 7V
-55OC to +125OC
ELECTRICAL CHARACTERISTICS
LXO-32.768 kHz
All parameters are measured at ambient temperature
with a 10MΩ and 10pF load at 5V.
SYMBOL PARAMETER
MIN.
TYP. MAX. UNIT
4.8
4.95
2
Frequency Stability
+
_
0OC to +50OC
25 ppm
+
_ 40 ppm
+
_ 70 ppm
+
_ 100 ppm
-20OC to+70OC
+
_
Voltage Coefficient
+
_
Current Consumption
Typ.
MAX.
Typ.
MAX.
(0.0025%)
(0.004%)
(0.007%)
(0.01%)
1 ppm/V Typ.
3 ppm/V MAX.
Output Voltage Hi
VOL
*tr
*tf
IDD
Output Voltage Lo
Rise Time
Fall Time
Supply Current
Duty Cycle
40
V
0.05
0.16
0.46
45
0.2
1
1
60
µsec.
µsec.
µA
V
50
60
%
* Models with faster rise and fall time available, contact factory.
See below
+
_
Aging
+
_
1 ppm/year Typ.
3 ppm/year MAX.
PIN CONNECTIONS
Pin
Shock, survival
1000 g peak, 1ms,1/2 sine
+
_ 3 ppm MAX.
Vibration, survival
10 g RMS, 10-2000 Hz
+
_ 3 ppm MAX.
Frequency Change vs.10% Output Load Change
+
_ 1 ppm MAX.
Operating Temperature -10OC to +70OC (Commercial)
-40OC to +85OC (Industrial)
-55OC to +125OC (Military)
Connection
1
NC
7
Ground
8
Output
14
VDD
PACKAGING
LXO
-Tube Pack
OUTPUT WAVE FORM
1. Tighter tolerances available
2. Does not include calibration tolerance.
(Positive variations small compared to negative variations.)
TYPICAL CURRENT CONSUMPTION,
LXO-32.768 kHz
100
CURRENT (u A)
VOH
VDD
VOH
90%*
80
60
VOL
0
40
20
10
10%*
tr
tf
* Of VDD
2
4
3
5
6
7
VD D (VOLTS)
HOW TO ORDER LXO CRYSTAL OSCILLATORS
LXO
S
“S” if special
or custom
design.
Blank if Std.
32.768K
Frequency
K = kHz
M = MHz
,
10
Calibration
Tolerance
@ 25OC
(in ppm)
I
/
Operating Temp. Range:
C = -10OC to +70OC
I = -40OC to +85OC
M = -55OC to +125OC
S = Customer Specified
*Other calibrations available:
indicate your requirement in ppm.
IS O
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
YS
90
01
TEM
C ERT I F I C
AT
N
IO
S
10110 - Rev D