EURO
QUARTZ
FEATURES
Low current consumption, low frequency from 700kHz
Low profile, miniature SMD package
Full military testing available
MIL testing to MIL-PRF-55310 available
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.
LSM Series Oscillators
700kHz to 2.1MHz
Low Frequency - Low power SMD Oscillator
OUTLINE & DIMENSIONS
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:
*
**
***
****
PART NUMBERING
Example:
2.0000MHz
LSMA050UMA
Contact factory for lower supply voltages
Tighter tolerances available
Does not include calibration tolerance. Positive variations
are much smaller.
Contact factory for other frequencies
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 info@euroquartz.co.uk www.euroquartz.co.uk
嵌入式系统
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