V3020SO8A EMMICRO [EM Microelectronic - MARIN SA], V3020SO8A Datasheet - Page 6

• Manufacturer Part Number: V3020SO8A
• Description: Ultra Low Power 1-Bit 32 kHz RTC
• Manufacturer: EMMICRO [EM Microelectronic - MARIN SA]

Typical Frequency on I/O Pin
Quartz Characteristics
Copyright © 2005, EM Microelectronic-Marin SA
Typical drift for ideal 32'768 Hz quartz
R
Note : The trimming capacitor value must not exceed
15 pF. Greater values may disturb the oscillator
function
∆F/F
T
T
To determine the clock error (accuracy) at a given
temperature, add the frequency tolerance at 25°C to the
value obtained from the formula above.
∆
F
O
O
6
F
O
= -0.038
=
=
=
the ratio of the change in frequency to the
nominal value expressed in ppm (it can be
thought of as the frequency deviation at any
temperature)
the temperature of interest in °C
the turnover temperature (25 ± 5°C)
ppm
°
C
2
(T – T
O
)
2
± 10%
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V3020
Fig. 5
Fig. 6