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

DESCRIPTION

The CXOXULP 32.768kHz oscillator achieves low power consumption

comparable witht a tuning fork design and the fast start up and tight

stability obtainable with AT-cut crystal designs. Designed for

applications requiring ultra-low current and fast start-upthe part offers

stability of ±30ppm to ±100ppm over -55° to +125°C; this being

achieved while being able to withstand significantly higher shock than

a tuning fork design.

OUTLINE & DIMENSIONS

Frequency Range:

32.7680kHz

Supply Voltage:

1.8V to +3.3 Volts ±10%

Calibration Tolerance:

±25ppm

Frequency Stability

over Operating Temperature Range

Commercial (0° ~ +70°C):

±10 to ±50ppm

Industrial(-40° ~ +85°C):

±20 to ±100ppm

Military (-55° ~ +125°C):

±50 to ±100ppm

Output Load (CMOS):

15pF

Ageing:

±5ppm first year

Shock, Survival:

Standard: 5000g, 0.3ms, ½ sine

HG: 10,000g, 0.3ms, ½ sine

Vibration Survival:

20g, 10~2000Hz swept sine

Rise and Fall Time:

6ns maximum

ABSOLUTE MAXIMUM RATINGS

Supply Voltage:

-0.3V to 5.0V

Storage Temperature:

-55° t +125°C

Maximum Process Temperature:

260°C for 20 seconds

SPECIFICATION

FEATURES

Ultra-low current consumption (typically 15µA)

Fast start-up (typically 15ms)

Tight Tolerance

High Shock Resistance

Low Ageing

Full military testing available

Output

Frequency Output

High Z state

Oscillator

Oscillates

Stops

Current

15µA

4.0µA at 25°C

When Pad 1 is allowed to float it is held high by an

internal pull-up resistor.

Enable (Pad 1 High)

ENABLE/DISABLE OPTIONS

PACKAGING OPTIONS

CXOXULP oscillators are available either tray packed (<250pcs) or

tape and reel (>250 pieces).

12mm tape, 178mm or 330mm reels (EIA 418).

CXOXULP OSCILLATORS

HOW TO ORDER CXOXULP CRYSTAL OSCILLATORS

CXOXULP HG 4

S

N

-

SM3 -

32.768k,

50

/

50

/ – /

I

Blank = standard

S = special or

custom

Enable/Disable

option, E or N

Terminations

Blank = SM1 = Gold plated

SM3 = Solder dipped

SM5 = Solder dipped

(SM1 and SM5 are pB free)

Frequency

in kHz

Calibration

Tolerance

at 25°C

(in ±ppm)

Frequency

Stability over

Temp. Range

(in ppm)

Temp. Range

C = -10° ~ +70°C

I = -40° ~ +85°C

M = -55° ~ +125°C

S = Customer specified

Ultra-Low Power/Fast Start-Up/High Shock

32.768kHz

Supply V.

1 = 1.8V

2 = 2.5V

3 = 3.0V

4 = 3.3V

Shock Level

Blank = Std.

HG = High Shock

Actual Size

Top

View

Side

View

There are two Enable/Disable options available, 'E' and 'N'. The 'E'

option stops oscillating when the output is put into the High Z state.

the 'N' version does not have Pad 1 connected internally. The table

below describes the 'E' Enable/Disable option.

Disable (Pad 1 Low)

Output Voltage High

0.9Vdd

V

Output Voltage Low

0.1Vdd

V

Start-up Time:

15

ms

Rise Time (10%~90%)

85

160

ns

Fall Time (10%~90%)

45

100

ns

Duty Cycle

45

50

55

%

Input Current

15

µA

Symbol Parameter

Min.

Typ.

Max.

Unit