EURO
QUARTZ
Low Power Crystal Oscillator
FEATURES
Industry-standard 1/2 size DIP for compatibility
Low ageing
Double hermetically sealed package
Full MILITARY testing available
Choice of 5.0V or 3.3V supply voltage
Optional Enable/Disable or Tristate function
LXOM-AT OSCILLATORS
500kHz to 120MHz
OUTLINE & DIMENSIONS
DESCRIPTION
The LXOM-AT oscillator is designed as a highly reliable crystal
oscillator able to withstand use in sever environments. The double
hermetically sealed package provides a permanently precise control of
ouput frequency.
SPECIFICATION
Supply Voltage:
Calibration Tolerance
Code 'A':
Code 'B':
Code 'C':
Frequency Stability
0° to +50°C:
-10° to +70°C:
-40° to +85°C:
-55° to +125°C:
Supply Current:
Output Levels 5V (CMOS)
VOL:
VOH:
Start-up Time:
Rise/Fall Time:
Duty Cycle:
Ageing first year:
Shock Survival:
Vibration Survival:
Operating Temperature Ranges
Commercial (C):
Industrial (I):
Military (M):
+5.0V±5% or +3.3V±5%
±0.01% (±100ppm)
±0.03%
±0.10%
from ±5 to ±30ppm
from ±10 to ±50ppm
from ±20 to ±100ppm
from ±30 to ±100ppm
from 4mA to 60mA
(frequency dependent)
0.5V max.
4.5V max.
5ms max.
6ns typical, 10ns maximum
60/40%
±5ppm max.
1,000g peak 1.0ms, ½ sine
10g rms 10~2000Hz random
-10° to +70°C
-40° to +85°C
-55° to +125°C
ENABLE/DISABLE OPTIONS (E/T/N)
The LXOM-AT oscillator has these pin options available:
'E' (Enable), when pin 1 is LOW (0), the oscillator stops oscillating.
'T' (Tri-state), when pin 1 is LOW, the oscillator continues to run,
hoever, the output buffer amplifier stops functioning and output is in
a high impedance (Z) state.
ENABLE vs TRI-STATE
Enable
Current consumption when
Pin 1 is low
Output recovery delay when
Pin 1 changes from low to high
Low
Delayed
Tri-State
High
Immediate
ABSOLUTE MAXIMUM RATINGS
Supply Voltage:
Storage Temperature:
-0.3V to +7.0V
-55° to +125°C
PACKAGING
HOW TO ORDER LXOM-AT OSCILLATORS
LXOM-AT oscillators are supplied tube packed.
LXOM-AT
S
10
2 = 2LSTTL loads
8 = 8 LSTTL loads
10 = 10 LSTTL loads
T
E = Enable
T = Tri-state
N = Neither
32MHz ( 100
Frequency
Calibration
Tolerance
at 25°C
(A)
(B)
(C)
/
100
Frequency
Stability
over
temperature
range
(in ±ppm)
/
200
Total
Frequency
Tolerance
(±ppm)
/
M)
S if special or
custom design
(Blank if
standard)
Temp. Range
C = Commercial
I = Industrial
M = Military
S = Specify
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
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