CC1110Fx / CC1111Fx
6.5 32.768 kHz Crystal Oscillator
TA = 25 C, VDD = 3.0V if nothing else is stated.
Parameter
Crystal frequency
C0
Min
Typ
32.768
0.9
Max
Unit
kHz
pF
Condition/Note
2.0
16
Simulated over operating conditions
Simulated over operating conditions
Simulated over operating conditions
Value is simulated
Load capacitance
ESR
12
pF
40
130
k
Start-up time
400
ms
Table 13: 32.768 kHz Crystal Oscillator Parameters
6.6 Low Power RC Oscillator
TA = 25 C, VDD = 3.0 V if nothing else is stated.
Parameter
Min
34.7
32.0
Typ
34.7
32.0
Max
36.0
32.0
Unit
Condition/Note
CC1110Fx
Calibrated frequency2
kHz
CC1111Fx
Calibrated low power RC oscillator frequency is
fRef / 750
Frequency accuracy
after calibration
±1
%
Temperature coefficient
+0.5
+3
2
Frequency drift when temperature changes after
calibration
%/ C
%/V
ms
Supply voltage
coefficient
Frequency drift when supply voltage changes after
calibration
Initial calibration time
When the low power RC oscillator is enabled,
calibration is continuously done in the background
as long as the high speed crystal oscillator is
running.
Table 14: Low Power RC Oscillator Parameters
2 fRef = fXOSC for CC1110Fx and fRef = fXOSC /2 for CC1111Fx
For CC1110Fx Min figures are given using fXOSC = 26 MHz. Typ figures are given using fXOSC = 26 MHz,
and Max figures are given using fXOSC = 27 MHz. For CC1111Fx, fXOSC = 48 MHz
SWRS033H
Page 20 of 246
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