RV-4162 Datasheet, PDF (29/39 Pages) MICORO CRYSTAL SWITZERLAND – Ultra Small Real Time Clock

Micro Crystal
Ultra Small Real Time Clock / Calendar Module
7.4. FREQUENCY CHARACTERISTICS
T_amb= +25°C; f_OSC= 32.768 kHz
PARAMETER
SYMBOL
Frequency accuracy
Frequency vs. temperature
characteristics
Turnover temperature
Aging first year max.
Oscillator start-up voltage
Oscillator start-up time
Δf/f
Δf/TOPR
TO
Δf/f
VStart
TStart
CLKOUT duty cycle
CONDITIONS
Tamb = +25°C
TOPR = -40°C to +85°C
Tamb = +25°C
10 seconds
VDD = 3.0V
FCLKOUT = 32.7678 kHz
TAMB = +25°C
MIN.
TYP.
MAX.
+/-20
-0.035^ppm/°C2 (TOPR-T0)² (+/-10%)
+25
20 - 30
+/-3
1.5
1
50
40/60
7.5. FREQUENCY VS. TEMPERATURE CHARACTERISTICS
20.0
0.0
-20.0
-40.0
-60.0
-80.0
-100.0
-120.0
-140.0
-160.0
-180.0
-60
-40
-20
T₀ = 25°C (±5°C)
-0.035 * (T-T0)² ppm (±10%)
0
20
40
60
T [°C]
80
100
RV-4162
UNIT
ppm
ppm
°C
ppm
V
s
%
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