LOW POWER CONSUMPTION OSCILLATORS
LPO 44 SERIES, Model 7
4 pad SMD Package
DESCRIPTION
The Euroquartz LPO44 series of low power consumption oscillators are
ideal parts providing the time base signals for real-time clocks. The
oscillators have very low current consumption (as low as 14µA) and are
ideal for battery operated devices such as data logging and portable test
equipment.
OUTLINES AND DIMENSIONS
FEATURES
·
•
•
•
•
Very low current consumption from 14µA
Industry-standard 4 pad SMD package
Wide frequency range, from 1Hz to 160kHz
Supply Voltage from 2.0 Volts to 15.0 Volts
Standard CMOS output
SPECIFICATION
Input Voltage:
Frequency Range:
+3.3 VDC
+5.0VDC
+2.0 Volts to +7.0 Volts is available
20kHz to 160kHz
(Limited to standard frequencies.)
CMOS
CURRENT CONSUMPTION vs SUPPLY VOLTAGE
Output Logic:
Output Voltage
CMOS HIGH’1’:
2.97V min.
4.0V min.
CMOS LOW ‘0’:
0.33V max.
0.4V max.
Calibration Tolerance:
see table opposite
Frequency Stability:
see curve opposite
Current Consumption:
14µA typical
18µA typical
Rise/Fall Times:
25ns typical, 45ns maximum
(Measured from 10%Vdd to 90%Vdd)
Start-up Voltage:
1.60 VDC
Pin 1 Option, Tristate:
Output is high impedance when LOW
Duty Cycle:
50%±5% typical, 50%±10% maximum
Start-up Time:
450ms maximum
Storage Temperature:
-50° to +100°C
Ageing:
±5ppm maximum at 25°C
CALIBRATION TOLERANCE
FREQUENCY DEVIATION vs TEMPERATURE
Euroquartz
Part Number
Suffix
P
A
B
C
Cailbration
Tolerance
at 25°C
±10ppm
±25ppm
±50ppm
±100ppm
PART NUMBER GENERATION
LPO oscillators part numbers are derived as follows:
EXAMPLE:
5LPO44 -C7-32.768k
kHz RANGE OSCILLATORS mA CURRENT CONSUMPTION
If you require oscillators in the kHz frequency range with mA current
consumption please see our standard CMOS oscillator range.
Voltage Code
‘5’ = 5 Volts
‘3’ = 3 Volts (etc.)
Package Code
LPO44 = 4 pad SMD
Calibration Tolerance
P, A, B or C
Model Code
4 or 7
Frequency
k = kHz, H = Hz
STOCK HOLDING AND CUSTOM PARTS
Euroquartz maintain a large stock of standard frequency and specification
oscillators. If you require custom frequencies and/or specification
oscillators, Euroquartz will manufacture in-house with short delivery
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 1460 230000 Fax: +44 1460 230001 email: info@euroquartz.co.uk web: www.euroquartz.co.uk
PCB Design
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