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32.7680KHZXO5032-20 [EUROQUARTZ]

CMOS Output Clock Oscillator, 0.032768MHz Nom,;
32.7680KHZXO5032-20
型号： 32.7680KHZXO5032-20
厂家： EUROQUARTZ LIMITED    EUROQUARTZ LIMITED
描述：

CMOS Output Clock Oscillator, 0.032768MHz Nom,

机械 振荡器
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XO5032 OSCILLATOR  
QUARTZ  
EURO  
32.768kHz  
Low Power AT-Cut Clock Oscillator  
FEATURES  
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  
OUTLINE & DIMENSIONS  
Miniature 5.0mm x 3.2mm package  
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.  
SPECIFICATION  
Frequency:  
32.7680kHz  
Frequency stability*  
±20ppm, ±25ppm, ±30ppm  
(Overall conditions)  
Operating Temperature Range:  
Storage Temperature Range:  
Input Voltage:  
Input Current:  
Output Symmetry:  
Rise/Fall Times:  
Logic Low '0' Level (Vol):  
Logic High '1' Level (Voh):  
Output Load:  
-40° to +85°C  
-55° to +125°C  
INPUT CURRENT vs. VDD  
+1.8 Volts to 5.0 Volts ±5%  
80µA maximum (50µA typical)  
45% to 55% at ½ Vdd level  
6ns maximum (10% to 90%Vdd)  
10% Vdd maximum  
90% Vdd minimum  
CMOS 15pF maximum  
1ms maximum  
Start-up Time:  
Ageing:  
Enable/Disable Delay Time*:  
±3ppm max. at 25±3°C 1st year  
100ns maximum  
NOTE  
STABILITY OVER TEMPERATURE  
(High stability over -40° to +85°C for XO5032 AT-Cut Type)  
PART NUMBERS  
XO5032 oscillators part numbers are ordered as follows:  
32.7680kHz XO5032 - 25 - B  
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  
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  

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