Datasheet

83
XMEGA B3 [DATASHEET]
8074D–AVR–08/2013
36.14.2 Calibrated 2MHz RC Internal Oscillator characteristics
Table 36-21. Calibrated 2MHz internal oscillator characteristics.
36.14.3 Calibrated and tunable 32MHz Internal Oscillator characteristics
Table 36-22. Calibrated 32MHz internal oscillator characteristics.
36.14.4 32kHz Internal ULP Oscillator characteristics
Table 36-23. 32kHz internal ULP oscillator characteristics.
36.14.5 Phase Locked Loop (PLL) characteristics
Table 36-24. Calibrated 32MHz internal oscillator characteristics.
Note: 1. The maximum output frequency vs. supply voltage is linear between 1.8V and 2.7V, and can never be higher than 4 times the maximum CPU frequency.
Symbol Parameter Condition Min Typ Max Units
Frequency range
DFLL can tune to this frequency over
voltage and temperature
1.8 2.2 MHz
Factory calibrated frequency 2.0 MHz
Factory calibration accuracy T = 85C, V
CC
= 3.0V -1.5 1.5 %
User calibration accuracy -0.2 0.2 %
DFLL calibration stepsize 0.22 %
Symbol Parameter Condition Min Typ Max Units
Frequency range
DFLL can tune to this frequency over
voltage and temperature
30 35
MHz
Factory calibrated frequency 32
Factory calibration accuracy T = 85C, V
CC
= 3.0V -1.5 1.5
%User calibration accuracy -0.2 0.2
DFLL calibration step size 0.23
Symbol Parameter Condition Min Typ Max Units
Factory calibrated frequency 32 kHz
Factory calibration accuracy T = 85C, V
CC
= 3.0V -12 12 %
Symbol Parameter Condition Min Typ Max Units
f
IN
Input Frequency Output frequency must be within f
OUT
0.4 64 MHz
f
OUT
Output frequency
(1)
V
CC
= 1.60V 20 32
MHz
V
CC
= 2.70V 20 128
Start-up time 23 100 µs
re-lock time 20 50 µs