Data Sheet

LSM Series Oscillators
EURO QUARTZ
Low Frequency - Low power SMD Oscillator
700kHz to 2.1MHz
FEATURES
Low current consumption, low frequency from 700kHz
Low profile, miniature SMD package
Full military testing available
MIL testing to MIL-PRF-55310 available
OUTLINE & DIMENSIONS
DESCRIPTION
LSM series oscillators are precision surface mount oscillators with a
frequency range from 700kHz to 2.1MHz. The part comprises of a
hermetically sealed crystal with a hybrid circuit sealed in a ceramic
package with a Kovar lid. Full MIL testing is available.
SPECIFICATION
Frequency Range:
Supply Voltage*:
Calibration Tolerance**
Code A:
Code B:
Code C:
Frequency Stability***
0° to +70°C:
700kHz to 2.1MHz
2.0MHz standard****
3.3 or 5.0 Volts ±10%
±0.01% (±100ppm)
±0.03%
±0.1%
-0.12% typical
-0.017% maximum
±5ppm/V maximum
±10ppm/year maximum
750g, 0.3ms, ½ sine, ±3ppm max.
10g rms, 10-2000Hz, ±3ppm max.
Voltage Coefficient:
Ageing:
Shock:
Vibration:
Frequency Change
vs. 10% Output Load Change: ±1ppm maximum
Operating Temperature:
-10° to +70°C Commercial
-40° to +85°C Industrial
-55° to +125°C Military
Output Voltage (5.0V supply)
HIGH:
4.8V minimum, 4.95V typical
LOW:
0.2V maximum, 0.05V typical
Rise/Fall Times:
12ns typical
Symmetry:
40/60% maximum, 45/55% typical
Supply Current
5.0V supply: 400 mA max., 300 mA typical
3.3V supply: 300 mA max., 200 mA typical
Packaging:
Tray pack (standard)
16mm tape, 17.8cm or 33cm reels
Start-up Time:
20ms typical
Notes:
*
**
***
****
Contact factory for lower supply voltages
Tighter tolerances available
Does not include calibration tolerance. Positive variations
are much smaller.
Contact factory for other frequencies
PART NUMBERING
Example:
2.0000MHz
LSMA050UMA
Frequency
Series Designation LSM
Calibration Tolerance (see table above)
Stability*
100 = ±100ppm
50 = ±50ppm
25 = ±25ppm
Output Universal (CMOS)
Operating Temp. Range
C = Commercial
I = Industrial
M = Military
Supply Voltage**
Blank = 5.0 Volts
A = 3.3 Volts
*
**
For other stability requirements enter figure required.
For other supply voltage enter required voltage.
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk
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