C2510Fx / CC2511Fx
7.6
Low Power RC Oscillator
T
A
= 25
°C,
VDD = 3.0 V if nothing else is stated.
Parameter
Calibrated frequency
Min
32.0
Typ
34.7
Max
36.0
±1
Unit
kHz
%
%/°C
%/V
ms
Condition/Note
Calibrated low power RC oscillator frequency is
f
XOSC
/
750
Frequency accuracy after
calibration
Temperature coefficient
Supply voltage coefficient
Initial calibration time
+0.5
+3
2
Frequency drift when temperature changes after
calibration
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
7.7
High Speed RC Oscillator
T
A
= 25
°C,
VDD = 3.0 V if nothing else is stated.
Parameter
Calibrated frequency
Min
12
Typ
13
±15
Max
13.5
Unit
MHz
%
Condition/Note
Calibrated HS RCOSC frequency is
f
XOSC
/
2
Uncalibrated frequency
accuracy
Calibrated frequency
accuracy
Start-up time
Temperature coefficient
Supply voltage coefficient
Initial calibration time
±1
10
-325
28
65
%
µs
ppm/°C
ppm/V
µs
Frequency drift when temperature changes after
calibration
Frequency drift when supply voltage changes after
calibration
The HS RCOSC will be calibrated once when the
high speed crystal oscillator is selected as system
clock source (CLKCON.OSC is set to 0), and also
when the system wakes up from PM{1-3}. See
Table 15: High Speed RC Oscillator Parameters
Min figures are given using
f
XOSC
= 24 MHz. Typ figures are given using
f
XOSC
= 26 MHz, and Max
figures are given using
f
XOSC
= 27 MHz
2
SWRS055D
Page 18 of 243
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
