Datasheet

82
XMEGA B1 [DATASHEET]
Atmel-8330H-AVR-ATxmega64B1-128B1_datasheet–AVR–12/2014
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. Internal PLL Characteristics
Note: 1. The maximum output frequency vs. supply voltage is linear between 1.8V and 2.7V, and can never be higher than four 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 step size 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 MHz
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
= 1.6 - 1.8V 20 48
MHz
V
CC
= 2.7 - 3.6V 20 128
Start-up time 23 100 µs
re-lock time 20 50 µs