LFXO TF OSCILLATOR

LFXO TF OSCILLATOR
32.768 kHz
Low Power Consumption
Miniature Surface Mount Crystal Oscillator
DESCRIPTION
Statek’s 32.768 kHz LFXO oscillators, designed especially
for applications requiring low power consumption, as low as
500 nA, consist of a Statek miniature Tuning Fork quartz
crystal and a CMOS/TTL compatible hybrid circuit in a
ceramic package. Each crystal is pre-qualified before
assembly into the oscillator through electrical tests and
characterization over temperature.
FEATURES
Low power
Tight frequency tolerance
CMOS output
Optional output Enable/Disable with Tri-State
Low EMI emission
Full military testing available
DIMENSIONS
D
2
A
TOP
3
BOTTOM
APPLICATIONS
1
4
D
Medical
Military & Aerospace
Industrial, Computer & Communications
B
TYPICAL
SUGGESTED LAND PATTERN
E
C
MAXIMUM
DIM
inches
mm
inches
mm
A
0.256
6.50
0.263
6.68
B
0.197
5.00
0.204
5.18
0.063
C (SM1)
C (SM3/SM5) 0.067
1.60
1.70
0.065
0.073
1.65
1.85
D
0.055
1.40
0.065
1.65
E
0.060
1.52
0.070
1.78
PIN CONNECTIONS ENABLE/DISABLE
1. Not connected (N) or Enable (T)
2. Ground
3. Output
4. VDD
IS O
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
90
01
TEM
C ERT I F I C
AT
N
IO
S
10195 Rev A
YS
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Specifications are typical at 25OC unless otherwise noted.
Specifications are subject to change without notice.
Supply Voltage VDD
Storage Temperature
Process Temperature
Supply Voltage
+
_
1.8V to 5V
1
Calibration Tolerance
+
_
10 ppm
+
_
50 ppm
+
_
100 ppm
10%
ELECTRICAL CHARACTERISTICS
All parameters are measured at ambient temperature with a
10MΩ and 15pF load at 5V.
SYMBOL PARAMETER
2
Frequency Stability
+
_
0OC to +50OC
-20OC to +70OC
-55OC to + 125OC
25 ppm
+
_ 70 ppm
+
_ 310 ppm
+
_
Aging
+
_
Vibration4
20 g RMS, 10 - 2000 Hz
Operating Temp. Range
TYP. MAX. UNIT
Output Voltage Hi
V OL
Output Voltage Lo
4.8
tr
Rise Time (10%-90%)
12
25
nsec.
tf
Fall Time (10%-90%)
12
25
nsec.
50
55
%
Duty Cycle
45
4.95
V
0.05 0.2
V
OUTPUT WAVE FORM
5,000 g, 0.3 ms, ½ sine
+
_
MIN.
V OH
SYM
1 ppm/year Typ.
3 ppm/year MAX
Shock3
Frequency Change vs
10%Output Load Change
0.5V to 7V
-55OC to +125OC
260OC 20 sec.
VDD
VOH
90%*
1 ppm MAX.
-10OC to +70OC (Commercial)
-40OC to +85OC (Industrial)
-55OC to +125OC (Military)
VOL
0
10%*
tr
1. Tighter tolerances available.
tf
* Of VDD
2. Does not include calibration tolerance. Positive variations are much smaller.
3. High shock version is available. Please contact factory.
4. Per MIL-STD-202G, Method 204D, Condition D. Random vibration testing also
available.
TYPICAL CURRENT CONSUMPTION
5. Measurements were done with no load condition.
Idd5 (uA)
Vdd (V)
1.8
0.5
2.5
0.6
3.3
0.7
5.0
1.3
HOW TO ORDER 32.768 kHz LFXO OSCILLATORS/ULTRA LOW POWER
LFXO
TF = Low
Power
TF
3
S
T
SM3
1 = 1.8V
2 = 2.5V
3 = 3.0V
4 = 3.3V
5 = 5.0V
S = Special or
Custom
Blank = Std.
Enable/Disable
Option
T or N
Termination
Blank = SM1
= Gold Plated
(Pb Free)
SM3 = Solder Dipped
SM5 = Solder Dipped
(Pb Free)
32.768K
,
Frequency
K = kHz
30
30
/
Calibration
Tolerance
@ 250C
(in ppm)
/
/
Frequency
Stability over
Temp.Range
(in ppm)
I
Temperature Range
C = -10OC to +70OC
I = -40OC to +85OC
M = -55OC to +125OC
S = Customer Specified
OR
/
/
50
Total
Frequency
Tolerance
(in ppm)
/
I
Temperature Range
C = -10OC to +70OC
I = -40OC to +85OC
M = -55OC to +125OC
S = Customer Specified
10195 Rev A
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com