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LXO-AT OSCILLATOR
500 kHz to 120 MHz
TM
Low Power Crystal Oscillator
DESCRIPTION
The LXO-AT consists of a TTL and CMOS-compatible hybrid circuit and a miniature quartz crystal packaged in a hermetically-sealed metal DIP. Permanent, precision tuning and a hermetically sealed AT quartz crystal allows for very tight calibration tolerance and eliminates the need for a tuning capacitor, a major source of long-term frequency drift.
z MH .0 -70 LX0
FEATURES
Low aging CMOS and TTL compatible Double hermetically sealed package Full military testing available 3 Volt model also available Optional Tri-State or Output Enable
E F G H J
APPLICATIONS PACKAGE DIMENSIONS
I
Industrial, Computer & Communications General purpose clock oscillator Military Flight recorder Airborne hybrid computers
B C PIN NO.1
A D PIN NO.7
PIN NO.14
OUTPUT WAVE FORM
PIN NO.8
VDD VOH
DIM A
INCHES 0.810 MAX. 0.510 MAX. 0.300 0.005 0.600 0.005 0.430 TYP. 0.240 MAX. 0.040 TYP. 0.150 MIN. 0.018 0.002 0.070 TYP.
+ _ + _ + _
mm 20.57 MAX. 12.95 MAX.
_ 7.62 + 0.13 _ 15.24 + 0.13
90%* 10%*
B C D E
VOL 0
10.92 TYP. 6.10 MAX. 1.02 TYP. 3.81 MIN.
_ 0.46 + 0.05
* Of VDD
tr
tf
F G H I J
1.78 TYP.
* Position of bumps for reference only
10111 - Rev D
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 25oC unless otherwise noted. Specifications are subject to change without notice. Supply Voltage (VDD) Calibration Tolerance (at 5V)*
_ 5V + 10% (3.3V available)
Supply Voltage VDD Storage Temperature
TRUTH TABLE
-0.3V to 7V -55OC to +125OC
A: B: C:
+ _ + _ + _
0.01% (100ppm) 0.03% 0.10%
+ _
PIN 1* LXO-AT-8E LXO-AT-2E Low (0) High (1) Low (0) High (1) LXO-AT-10T Low (0) High (1)
* Normally high (internal pull-up resistor)
PIN 3 High (1) Freq. Output Low (0) Freq. Output High (Z) Freq. Output
Frequency Stability**
0O C to +50OC from
5 to
+ _
30ppm
_ _ -10OC to +70OC from + 10 to + 50ppm _ -40OC to +85OC from + 20 to + _
100ppm
-55OC to +125OCfrom Supply Current Output Levels TTL CMOS Start-up Time Rise/Fall Time Duty Cycle Aging, first year Shock, survival*** Vibration survival
+ _
_ 30 to + 100ppm
4 mA to 60 mA (Depending on freq.)
ENABLE VS. TRI-STATE
VOL 0.4V MAX. 0.5V MAX. 5 msec. MAX.
VOH 2.4V MIN. 4.5V MIN.
6 nsec. Typ., 10 nsec. MAX. 40% Min., 60% MAX. 10 ppm MAX. 1,000g peak 1 msec., 1/2 sine 10g rms 10-2000 Hz
Enable: When pin 1 is low (0), the oscillator stops oscillation. Tri-state: When pin 1 is low, the oscillator is running. However, the output buffer amplifier stops functioning and output is in high impedance (Z) state. Enable Current consumption when pin 1 is low Output recovery delay when pin 1 changes from low (0) to high (1) Low Delayed Tri-state High Immediate
Operating Temperature -10OC to +70OC Commercial -40OC to +85OC Industrial -55OC to +125OC Military Storage Temperature -55OC to +125OC
PIN CONNECTIONS
___
1. Output Enable, INH (Tri-State) or NC
* Tighter tolerances available for calibration and stability. ** Does not include calibration tolerance *** High shock version available Note: All parameters are measured at ambient temperature with a 10M and 10pF load at 5V
7. Ground 8. Output 14. VDD
PACKAGING
LXO-AT- Tube Pack (Standard)
HOW TO ORDER LXO-AT CRYSTAL OSCILLATORS LXO-AT "S" if special or custom design. Blank if Std. S 10 T 32 MHz E = Enable T = Tri-State N = Neither Frequency
* Other calibration fill in ppm
(
100ppm Calibration Tolerance* @ 250C (A) (B) (C)
/
100ppm Frequency Stability over Temp. Range
/
200ppm Total Frequency Tolerance
/
I Temp. Range: C = Commercial I = Industrial M = Military S = Specify
)
2 = 2 LS TTL Load 8=8 TTL Load 10 =10 TTL Load
10111 - 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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