EURO
QUARTZ
FEATURES
Ultra-low current consumption (typically 15µA)
Fast start-up (typically 15ms)
Tight Tolerance
High Shock Resistance
Low Ageing
Full military testing available
CXOXULP OSCILLATORS
32.768kHz
Actual Size
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Ultra-Low Power/Fast Start-Up/High Shock
OUTLINE & DIMENSIONS
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.
SPECIFICATION
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
Symbol Parameter
V
OH
V
OL
t
startup
t
r
t
f
I
DD
Output Voltage High
Output Voltage Low
Start-up Time:
Rise Time (10%~90%)
Fall Time (10%~90%)
Duty Cycle
Input Current
Min.
0.9Vdd
0.1Vdd
15
85
45
50
15
160
100
55
Typ.
Max.
Unit
V
V
ms
ns
ns
%
µA
ENABLE/DISABLE OPTIONS
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.
Enable (Pad 1 High) Disable (Pad 1 Low)
Output
Oscillator
Current
Frequency Output
Oscillates
15µA
High Z state
Stops
4.0µA at 25°C
When Pad 1 is allowed to float it is held high by an
internal pull-up resistor.
PACKAGING OPTIONS
CXOXULP oscillators are available either tray packed (<250pcs) or
tape and reel (>250 pieces).
12mm tape, 178mm or 330mm reels (EIA 418).
45
HOW TO ORDER CXOXULP CRYSTAL OSCILLATORS
CXOXULP HG 4
Shock Level
Blank = Std.
HG = High Shock
Supply V.
1 = 1.8V
2 = 2.5V
3 = 3.0V
4 = 3.3V
S
N
Enable/Disable
option, E or N
-
SM3 -
32.768k,
Frequency
in kHz
50
Calibration
Tolerance
at 25°C
(in ±ppm)
/
50
Frequency
Stability over
Temp. Range
(in ppm)
/ – /
I
Blank = standard
S = special or
custom
Terminations
Blank = SM1 = Gold plated
SM3 = Solder dipped
SM5 = Solder dipped
(SM1 and SM5 are pB free)
Temp. Range
C = -10° ~ +70°C
I = -40° ~ +85°C
M = -55° ~ +125°C
S = Customer specified
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
