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

LOW POWER CONSUMPTION OSCILLATORS

·

Very low current consumption from 14mA

·

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

LPO 42 SERIES, Model 7

OUTLINES AND DIMENSIONS

4 pad SMD Package

DESCRIPTION

The Euroquartz LPO42 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 14mA) and are

ideal for battery operated devices such as data logging and portable test

equipment.

FEATURES

SPECIFICATION

Input Voltage:

+3.3 VDC

+5.0VDC

+2.0 Volts to +7.0 Volts is available

Frequency Range:

20kHz to 160kHz

(Limited to standard frequencies.)

Output Logic:

CMOS

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:

14mA typical

18mA 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

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.

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

FREQUENCY DEVIATION vs TEMPERATURE

CURRENT CONSUMPTION vs SUPPLY VOLTAGE

CALIBRATION TOLERANCE

Euroquartz

Part Number

Suffix

Cailbration

Tolerance

at 25°C

P

±10ppm

A

±25ppm

B

±50ppm

C

±100ppm

PART NUMBER GENERATION

LPO oscillators part numbers are derived as follows:

EXAMPLE:

5LPO42 -C7-32.768k

Voltage Code

‘5’ = 5 Volts

‘3’ = 3 Volts (etc.)

Package Code

LPO42 = 4 pad SMD

Calibration Tolerance

P, A, B or C

Model Code

4 or 7

Frequency

k = kHz, H = Hz