Data Sheet

EURO QUARTZ
XO91 Low Frequency Oscillator
32.768kHz
7 x 5mm SMD HCMOS
FEATURES
Miniature 7.0 x 5.0 x 1.4mm hermetically-sealed package
Frequency 32.000kHz
Tristate (Enable/Disable) function as standard
Supply voltage 5.0 Volts
DESCRIPTION
XO91miniature oscillators consist of a TTL/CMOS-compatible hybrid
circuit together with a miniature quartz crystal packaged in a lowprofile, industry-standard ceramic package. The high quality design
and materials employed provide a highly reliable clock oscillator in a
miniature package while mass production methods ensure that the
XO91 provides a cost-effective oscillator solution.
OUTLINE & DIMENSIONS
SPECIFICATION
Frequency:
32.768kHz
Supply Voltage:
5.0 Volts ±10%
Output Logic:
HCMOS/LSTTL
Frequency Stability:
100ppm*
Rise/Fall Time:
4ns typical
Output Voltage:
HIGH ‘1’:
90%Vdd minimum
LOW ‘0’:
10%Vdd maximum
Output Load
CMOS:
15pF
TTL:
10 LSTTL loads
Duty Cycle:
50%±5%
Supply Current:
8.0mA typical, 15mA maximum
Operating Temperature:
-10° to +70°C
Storage Temperature:
-40° to +85°C
Startup Time:
2ms typical
Ageing:
±3ppm max. per year
Tristate Function (Pad 1):
Output (Pad 3) is active if Pad 1 is not connected or a
voltage to Pad 1 is 'HIGH'. Output is high impedance
when 'LOW' or GROUND is applied to Pad 1.
* Frequency stability is inclusive of calibration tolerance at 25°C,
frequency change due to shock & vibration, ±10 supply voltage
variation and stability over temperature range.
SOLDER TEMPERATURE PROFILE
PART NUMBERING
32.000kHz XO91100UCT
Frequency
Series Designation XO91
Temperature Stability
100 = ±100ppm
Output CMOS/TTL
Operating Temperature Range
C = Commercial
Tristate Function
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk
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