Datenblatt

LSC OSCILLATOR
30 kHZ to 400 kHz
Low Power Surface Mount Crystal Oscillator
DESCRIPTION
The LSC oscillator is designed especially for
applications requiring low power consumption. The
design consists of a Statek miniature Tuning Fork quartz
crystal and a CMOS compatible integrated circuit in a
ceramic package.
X
XX
SX
PACKAGE DIMENSIONS
FEATURES
Ultra-low power consumption
Typical start-up time of 500ms
Low aging
CMOS compatible
Typical rise and fall times of 25ns
5 V operation standard
3.3 V operation also available
Optional Tri-State output
Low cost solution
Designed, manufactured, and tested in the USA
APPLICATIONS
Industrial, Computer & Communications
General purpose clock oscillator
Data logger
Remote sensor
Real time clock
Medical test and diagnostics
TYPICAL
MAXIMUM
DIM
inches
mm
inches
mm
A
0.400
10.16
0.405
10.29
B
0.180
4.57
0.185
4.70
C*
0.065
1.65
0.070
1.77
D
0.200
5.08
0.205
5.21
E
0.080
2.03
0.085
2.16
F
0.050
1.27
0.058
1.47
G
0.055
1.40
0.063
1.60
Termination material is Au over Ni (SM1), solder dip
(SM3) also available.
*SM1 Termination; SM3 = 0.075 in. (1.91mm) Max.
SUGGESTED LAND PATTERN
Portable field communication
10153 - Rev F
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
SPECIFICATIONS: LSC 30 kHz to 400 kHz
ABSOLUTE MAXIMUM RATINGS
Specifications are typical at 25 C unless otherwise noted.
Specifications are subject to change without notice.
Supply Voltage VDD
Storage Temperature
Process Temperature
O
5 V +_ 10%
3.3 V +_ 10%
Supply Voltage1
Calibration Tolerance
ELECTRICAL CHARACTERISTICS
+
_
10 ppm (0.001%)
+
_
25 ppm (0.0025%)
+
_
100 ppm (0.01%)
LSC 32.768 kHz
All parameters are measured at 25ºC with a 10MΩ and
10pF load with VDD 3.3 V.
SYMBOL PARAMETER
Frequency Stability Over Temperature2
+
_
0 C to +50 C
O
25 ppm
40 ppm
+
_ 70 ppm
+
_ 100 ppm
O
+
_
-10OC to+70OC
Voltage Coefficient
Aging, first year
Shock
Vibration
Operating Temp. Range
Typ.
MAX.
Typ.
MAX.
(0.0025%)
(0.004%)
(0.007%)
(0.01%)
1 ppm/V
+
_ 2 ppm
5000 g, 0.3 ms,1/2 sine
20 g RMS, 10 - 2000 Hz
-10OC to +70OC (Commercial)
-40OC to +85OC (Industrial)
-55OC to +125OC (Military)
TYP. MAX. UNIT
Output Voltage Hi VDD-0.4 VDD
VOL
Output Voltage Lo
Duty Cycle
45
V
0
0.4
V
50
55
%
tr
Rise Time (10%-90%)
50
nsec.
tf
Fall Time (10%-90%)
50
nsec.
PIN CONNECTIONS
Pin
Connection
1
Output Enable or NC
2
Ground
3
Output
4
VDD
PACKAGING OPTIONS
LSC
* VDD = 3.3 V and 10pF load.
MIN.
VOH
SYM
+
_
1. Contact the factory for lower voltage.
2. Does not include calibration tolerance. Positive variations small compared
to negative variations.
Current Consumption*
-0.5 V to 7 V
-55OC to +125OC
260OC 20 sec.
-Tray Pack
-16mm tape, 7” or 13” reels
2.8 µA (32.768 kHz)
8.0 µA (100.0 kHz)
(Reference tape and reel data sheet 10109)
TRISTATE/DISABLE OPTION T
FUNCTION TABLE
TRISTATE/DISABLE OPTIONS (T/N)
Statek offers two enable/disable options: T and N. The Tversion 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.
Output
Tri-State (Pin 1 High*)
Disable (Pin 1 Low)
Frequency Output
High Z State
Internal Osc. Oscillates
Oscillates
Current
Lower than Normal
Normal
* When PIN 1 is allowed to float, it is held high by an internal pull-up resistor.
HOW TO ORDER LSC SURFACE MOUNT CRYSTAL OSCILLATORS
LSC
3
3 = 3.3 V
Blank = 5 V (Std.)
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
@ 25OC
(in ppm)
I
/
Temp. Range:
C = -10OC to +70OC
I = -40OC to +85OC
M = -55OC to +125OC
S = Customer Specified
10153 - Rev F
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
Similar pages