CXOLAT OSCILLATOR
32.768 kHz
Ultra-Low Power/Fast Start-Up/Ultra-Miniature
DESCRIPTION
The CXOXLAT 32.768 kHz oscillator achieves the low
power comparable with a tuning fork design and the fast
start-up and tight frequency stability attained by an AT cut
crystal design. Designed for applications requiring ultra-
low current (15 µA), fast start-up time (15 ms), and a tight
frequency stability (±30 ppm to ±100 ppm) over a wide
temperature range (-55
O
C to +125
O
C). These oscillators
are also capable of withstanding significantly higher
shock than a standard tuning fork design.
FEATURES
Ultra-low current (typical 15 µA)
Fast start-up (typical 15 ms)
Tight tolerance
High shock resistance
Low aging
CMOS output
Optional Output Enable/Disable with Tri-State
Hermetically sealed ceramic package
Full military testing available
Designed and manufactured in the USA
APPLICATIONS
DIMENSIONS
TYPICAL
DIM
A
B
C
(SM1)
D
E
inches
0.126
0.059
0.037
0.029
0.020
mm
3.20
1.50
0.95
0.75
0.50
MAXIMUM
inches
0.130
0.063
0.039
0.030
0.021
mm
3.30
1.60
1.00
0.77
0.52
Military, Aerospace & Avionics
Communications
Navigation
GPS
Industrial, Computer & Communications
Handheld instrumentation
Transponder/Animal migration
SUGGESTED LAND PATTERN
PIN CONNECTIONS
1. Output
2. Ground
3. Output Enable/Disable (E) or no connection (N)
4. V
DD
10217 Rev A
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256
www.statek.com
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Specifications are typical at 25
O
C unless otherwise noted.
Specifications are subject to change without notice. Tighter
specifications available (contact factory).
Supply Voltage
Calibration Tolerance
1
Frequency Stability
Over Temperature
2
Output Load (CMOS)
Aging, first year
Shock
Vibration
3
1.8 V to 3.3 V ±10%
±25 ppm
±10 to ±50 ppm for Commercial
±20 to ±100 ppm for Industrial
±50 to ±100 ppm for Military
15 pF
5 ppm
5,000 g, 0.3 ms, ½ sine
20 g, 10-2,000 Hz swept sine
Supply Voltage V
DD
-0.5 V to 5.0 V
Storage Temperature
-55
O
C to 125
O
C
Maximum Process Temperature 260
O
C for 20 seconds
ENABLE/DISABLE OPTIONS (E/N)
For the 32.768 kHz CXOLAT, Statek offers two
enable/disable options: E and N. The E-version has a Tri-
State output and stops oscillating internally when the
output is put into the high Z state. The N-version does not
have PIN 3 connected internally and so has no
enable/disable capability. The following table summarizes
the Enable/Disable option E.
Operating Temp. Range -10
O
C to 70
O
C (Commercial)
-40
O
C to 85
O
C (Industrial)
-55
O
C to 125
O
C (Military)
1. Other tolerances available.
2. Does not include calibration tolerance. Other tolerances available.
3. Per MIL-STD-202G, Method 204D, Condition D. Random vibration testing also
available.
ENABLE/DISABLE OPTION E
FUNCTION TABLE
Enable (Pin 3 High*) Disable (Pin 3 Low)
Output
Oscillator
Current
Frequency Output
Oscillates
15
µ
A
High Z State
Stops
Less than 1
µ
A at
25
O
C
ELECTRICAL CHARACTERISTICS
CXOLAT 32.768 kHz
*
When PIN 1 is allowed to float, it is held high by an internal pull-up resistor.
All parameters are measured at 25ºC with a 10MΩ and
15pF load with
V
DD
3.3 V.
SYMBOL PARAMETER
MIN
TYP
MAX
UNIT
V
OH
V
OL
t
startup
t
r
t
f
I
DD
Output Voltage High
Output Voltage Low
Start-up Time
Rise Time (10%-90%)
Fall Time (10%-90%)
Duty Cycle
Current Consumption
0.9V
DD
15
2.8
2.4
45
50
15
10
10
55
V
0.1V
DD
V
ms
ns
ns
%
PACKAGING OPTIONS
CXOLAT
- Tray Pack
- 12 mm tape, 7” or 13” reels
(
Per EIA 481)
µ
A
HOW TO ORDER CXOLAT 32.768 kHz SURFACE MOUNT CRYSTAL OSCILLATORS
CXOLAT
4
Supply Voltage
1 = 1.8 V
2 = 2.5 V
3 = 3.0 V
4 = 3.3 V
S
“S” if special or
custom design.
Blank if Std.
N
Enable/Disable
Option
E or N
SM3
,
32.768k /
Frequency
k = kHz
50
Calibration
Tolerance
@ 25
0
C
(in ppm)
/
50
Frequency
Stability over
Temp. Range
(in ppm)
/
/
Terminations
Blank = SM1
= Gold Plated
(Lead Free)
SM2 = Solder Plated
SM3 = Solder Dipped
SM4 = Solder Plated
SM5 = Solder Dipped
(Lead Free)
Temp. Range:
C = -10
O
C to +70
O
C
I
= -40
O
C to +85
O
C
I
M = -55
O
C to +125
O
C
S = Customer Specified
OR
/
/
50
Total
Frequency
Tolerance
(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
10217 Rev A
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256
www.statek.com
stm32/stm8
