CC1110Fx / CC1111Fx
7.5 32.768 kHz Crystal Oscillator
TA = 25 °C, VDD = 3.0V if nothing else is stated.
Parameter
Min
Typ
32.768
0.9
Max
Unit Condition/Note
Crystal frequency
kHz
Crystal shunt
capacitance
2.0
pF
Simulated over operating conditions
Simulated over operating conditions
Load capacitance
ESR
12
40
16
pF
kΩ
ms
130
Simulated over operating conditions
Value is simulated
Start-up time
400
Table 13: 32.768 kHz Crystal Oscillator Parameters
7.6 Low Power RC Oscillator
TA = 25 °C, VDD = 3.0 V if nothing else is stated.
Parameter
Min
Typ
Max
Unit
Condition/Note
Calibrated frequency2
32.0
34.7
36.0
kHz
Calibrated low power RC oscillator frequency is
fXOSC / 750
Frequency accuracy after
calibration
±1
%
Temperature coefficient
Supply voltage coefficient
Initial calibration time
+0.5
+3
2
Frequency drift when temperature changes after
calibration
%/°C
%/V
ms
Frequency drift when supply voltage changes after
calibration
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 Min figures are given using fXOSC = 24 MHz. Typical figures are given using fXOSC = 26 MHz, and Max
figures are given using fXOSC = 27 MHz
SWRS033E
Page 21 of 239
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
