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
EURO
QUARTZ
Low Power AT-Cut Clock Oscillator
DESCRIPTION
XO5032 oscillators utilise AT-Cut crystals providing much improved,
tight frequency stability as opposed to that stabiity provided by
32.768kHz oscillators using the more usual X-Cut (tuning fork)
crystals. The tight control of frequency provided by these oscillators
results in a typical variation of 52 seconds for one month of
continuous operation as against 260 seconds over the same period
for oscillators that use tuning fork crystals.Other benefits include low
supply current consumption coupled with quick start-up times.
AT-Cut crystal for excellent temperature stability
Low power consumption: 50µA typical at 15pF load
Wide supply voltage: +1.8 V to 5.0 Volts
Stability ±20ppm, 25ppm or ±30ppm
Fast start-up time
Miniature 5.0mm x 3.2mm package
FEATURES
OUTLINE & DIMENSIONS
Frequency: 32.7680kHz
Frequency stability* ±20ppm, ±25ppm, ±30ppm
(Overall conditions)
Operating Temperature Range: -40° to +85°C
Storage Temperature Range: -55° to +125°C
Input Voltage: +1.8 Volts to 5.0 Volts ±5%
Input Current: 80µA maximum (50µA typical)
Output Symmetry: 45% to 55% at ½ Vdd level
Rise/Fall Times: 6ns maximum (10% to 90%Vdd)
Logic Low '0' Level (Vol): 10% Vdd maximum
Logic High '1' Level (Voh): 90% Vdd minimum
Output Load: CMOS 15pF maximum
Start-up Time: 1ms maximum
Ageing: ±3ppm max. at 25±3°C 1st year
Enable/Disable Delay Time*: 100ns maximum
SPECIFICATION
NOTE
PART NUMBERS
XO5032 oscillators part numbers are ordered as follows:
32.7680kHz XO5032 - 25 - B
XO5032 OSCILLATOR
32.768kHz
Frequency
32.768kHz
Model Number
XO5032
Stability in ppm
20, 25 or 30ppm
Supply Voltage
Blank = 5.0 Volts
A = 3.3 Volts
B = 2.5 Volts
C = 1.8 Volts
STABILITY OVER TEMPERATURE
(High stability over -40° to +85°C for XO5032 AT-Cut Type)
INPUT CURRENT vs. VDD