STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
10141 - Rev C
DESCRIPTION
The LQXO-4 oscillator design consists of a CMOS-
compatible hybrid circuit, packaged in a standard TO-39
metal package. Permanent, precision tuning of the
oscillator 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 LQXO-4 vary with frequency. The
characteristics of the 32.768 kHz model are presented in
this data sheet.
FEATURES
Very low power consumption
Low aging
CMOS compatible
Double hermetically sealed package
Full military testing available
3 Volt operation available
APPLICATIONS
Industrial, Computer & Communications
General purpose clock oscillator
Tone generators
Data loggers
Telephone equipment
Ultrasonic detectors
Airborne hybrid computer
Flight recorder
LQXO-4 OSCILLATOR
32 kHz to 200 kHz*
Low Power Crystal Oscillator
™
B
E
CD
A
F
G
3
2
1
BOTTOM VIEW
DIM INCHES mm
A 0.380 MAX. 9.65 MAX.
B 0.185 MAX. 4.70 MAX.
C 0.500 Min. 12.70 Min.
D 0.029 0.74
E 0.326 MAX. 8.28 MAX
F 0.200 Ref. 5.08 Ref.
G45
O45O
Note:
1. All metal parts gold plated
2. Leads are 0.019 in.[0.48mm] MAX.
PACKAGE DIMENSIONS
TOP VIEW
*Consult factory for other
frequencies.
PIN CONNECTIONS
1. VDD
2. Output
3. Ground
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
10141 - Rev C
SPECIFICATIONS-LQXO-4 32.768 kHz
Specifications are typical at 25oC unless otherwise noted.
Specifications are subject to change without notice.
Supply Voltage (VDD) 5V 10% (3.3V available)
Calibration A: 0.01% (100ppm)
Tolerance* B: 0.03%
C : 0.1%
Frequency Stability** 0OC to +50OC -0.0025% Typ. 25 ppm
-0.004% MAX. 40 ppm
-20OC to +70OC -0.007% Typ. 70 ppm
-0.01% MAX 100 ppm
Voltage Coefficient 1 ppm/V Typ.
3 ppm/V MAX.
Aging, first year 1 ppm/year Typ.
3 ppm/year MAX.
Shock 1,000g, 1 msec.,1/2 sine 3 ppm MAX.
Vibration 10g rms10-2000 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
* Tighter tolerances available.
** Does not include calibration tolerance. Positive variations small compared to negative
variations.
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
ABSOLUTE MAXIMUM RATINGS
Supply Voltage VDD -0.3V to 7.0V
Storage Temperature -55OC to +125OC
Maximum Process Temp. 260OC, 10 seconds
ELECTRICAL CHARACTERISTICS
LQXO-4 32.768 kHz
All parameters are measured at ambient temperature
with a 10M
V
and 10pF load at 5V.
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V Output Voltage Hi 4.8 4.95 V
V Output Voltage Lo 0.05 0.2 V
*trRise Time (10%-90%) 12 25 nsec.
*tfFall Time (10%-90%) 12 25 nsec.
SYM Duty Cycle 40 50 60 %
Supply Current
V =5V 7 15
m
A
V =3V 5 10
m
A
* Models with faster rise and fall time available, consult factory.
PACKAGING
LQXO-4 - Tray Pack (Standard)
OUTPUT WAVE FORM
VDD
VOH
trtf
0
VOL
90%*
10%*
TYPICAL CURRENT CONSUMPTION
LQXO-4-32.768 kHz
HOW TO ORDER LQXO-4 CRYSTAL OSCILLATORS
LQXO-4 S 32.768 kHz ( A / I )
“S” if special or Frequency *Calibration Temp. Range:
custom design. Tolerance C = Commercial
Blank if Std. @25OC I = Industrial
(A) M= Military
(B) S = Specify
(C)
IDD
23456
6
8
VDD (Volts)
CURRENT (uA)
10
12
7
4
* Of VDD
*Other calibration fill in ppm
