LSM OSCILLATOR
30 kHz to 400 kHz
Low Power Surface Mount Crystal Oscillator
DESCRIPTION
The LSM oscillator is an ultra-low current quartz crystal
oscillator with a typical start-up time of 500ms. The
design consists of a STATEK crystal, and a CMOS-
compatible integrated circuit. The hybrid design is
hermetically-sealed with a kovar lid in a surface mount
ceramic package. Permanent precision tuning of the
oscillator is accomplished by laser trimming the crystal.
FEATURES
PACKAGE DIMENSIONS
2
3
Ultra-low power consumption
Typical start-up time of 500ms
Typical rise and fall times of 25ns
Hermetically sealed ceramic package
Optional output enable/disable with Tri-State
Full military testing per MIL-PRF-55310 available
Designed, manufactured, and tested in the USA
3.3 volt operation available
APPLICATIONS
1
4
F
TYPICAL
DIM
A
B
C*
D
E
F
G
inches
0.400
0.180
0.071
0.200
0.080
0.050
0.055
mm
10.16
4.57
1.80
5.08
2.03
1.27
1.40
MAXIMUM
inches
0.405
0.185
0.079
0.205
0.085
0.058
0.063
mm
10.29
4.70
2.00
5.21
2.16
1.47
1.60
Industrial, Computer & Communications
General purpose clock oscillator
Data logger
Remote sensor
Real time clock
Medical test and diagnostics
Military
Portable field communication
Military high speed modem
Flight recorder
Termination material is Au over Ni (SM1), solder dip
(SM3) also available.
*SM1 Termination; SM3 = 0.084 in. (2.13mm) Max.
SUGGESTED LAND PATTERN
0.075 (1.91)
0.068 (1.73)
0.064 (1.63)
GRID
PLACEMENT
COURTYARD
0.132 (3.35)
inches (mm)
0.200 (5.08)
10151 - Rev D
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256
www.statek.com
SPECIFICATIONS: LSM 30 kHz to 400 kHz
ABSOLUTE MAXIMUM RATINGS
Specifications are typical at 25 C unless otherwise noted.
Specifications are subject to change without notice.
O
Supply Voltage V
DD
Storage Temperature
Process Temperature
-0.5 V to 7 V
-55
O
C to +125
O
C
260
O
C 20 sec.
Supply Voltage
1
Calibration Tolerance
_
5 V
+
10%
_
3.3 V
+
10%
+
_
+
_
+
_
ELECTRICAL CHARACTERISTICS
LSM 32.768 kHz
10 ppm (0.001%)
25 ppm (0.0025%)
100 ppm (0.01%)
Typ.
MAX.
Typ.
MAX.
(0.0025%)
(0.004%)
(0.007%)
(0.01%)
All parameters are measured at 25ºC with a 10MΩ and
10pF load with
V
DD
3.3 V.
SYMBOL PARAMETER
V
OH
V
OL
SYM
t
r
t
f
Output Voltage Lo
Duty Cycle
Fall Time (10%-90%)
45
Rise Time (10%-90%)
MIN.
TYP. MAX. UNIT
V
0.4
55
50
50
V
%
nsec.
nsec.
0
50
Frequency Stability Over Temperature
2
0
O
C to +50
O
C
-10
O
C to+70
O
C
Voltage Coefficient
Aging, first year
Shock
Vibration
Operating Temp. Range
+
_
+
_
25 ppm
40 ppm
+
_
70 ppm
+
_
100 ppm
+
_
+
_
Output Voltage Hi V
DD
-0.4 V
DD
1 ppm/V
2 ppm
5000 g, 0.3 ms,1/2 sine
20 g RMS, 10 - 2000 Hz
-10
O
C to +70
O
C (Commercial)
-40
O
C to +85
O
C (Industrial)
-55
O
C to +125
O
C (Military)
PIN CONNECTIONS
Pin
1
2
3
4
Connection
Output Enable or NC
Ground
Output
V
DD
1. Contact the factory for lower voltage.
2. Does not include calibration tolerance. Positive variations small compared
to negative variations.
PACKAGING OPTIONS
LSM
Current Consumption*
* VDD = 3.3 V and 10pF load.
-Tray Pack
-16mm tape, 7” or 13” reels
(Reference tape and reel data sheet 10109)
2.8
µA
(32.768 kHz)
8.0
µA
(100.0 kHz)
TRISTATE/DISABLE OPTIONS (T/N)
TRISTATE/DISABLE OPTION T
FUNCTION TABLE
Statek offers two enable/disable options: T and N. The T-
version has a Tri-State output and continues oscillating
internally when the output is put into the high Z state. The
N-version does not have PIN 1 connected internally and so
has no Tri-State/Disable capability. The following table
describes the Tri-State/Disable option T.
Tri-State (Pin 1 High*)
Output
Frequency Output
Disable (Pin 1 Low)
High Z State
Oscillates
Lower than Normal
Internal Osc.
Oscillates
Current
Normal
*
When PIN 1 is allowed to float, it is held high by an internal pull-up resistor.
HOW TO ORDER LSM SURFACE MOUNT CRYSTAL OSCILLATORS
LSM
3
S
“S” if special
or custom
design.
Blank if Std.
+
T
T = Tri-State
Blank = Pin 1
no connection
SM3
Blank = SM1
= Gold Plated
(Lead Free)
SM3 = Solder Dipped
SM5 = Solder Dipped
(Lead Free)
32.768K
Frequency
K = kHz
,
100
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
3 = 3.3 V
Blank = 5 V (Std.)
10151 - Rev D
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256
www.statek.com
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