Datasheet

1031
SAM9263 [DATASHEET]
Atmel-6249N-ATARM-SAM9263-Datasheet_14-Mar-16
Notes: 1. R
S
= 100 to 200 Ω ; C
SHUNT
= 2.0 to 2.5 pF; C
m
= 2 to 1.5 fF (typ, worst case) using 1 kΩ serial resistor on XOUT.
2. R
S
= 50 to 100 Ω ; C
SHUNT
= 2.0 to 2.5 pF; C
m
= 4 to 3 fF (typ, worst case).
3. R
S
= 25 to 50 Ω ; C
SHUNT
= 2.5 to 3.0 pF; C
m
= 7 to 5 fF (typ, worst case).
4. R
S
= 20 to 50 Ω ; C
SHUNT
= 3.2 to 4.0 pF; C
m
= 10 to 8 fF (typ, worst case).
5. Additional user load capacitance should be subtracted from C
LEXT
.
6. C
LEXT
is determined by taking into account internal parasitic and package load capacitance.
Figure 46-3. Main Oscillator Schematic
46.6.4 Crystal Characteristics
I
DDST
Standby Current Consumption Standby mode 1 µA
P
ON
Drive Level
@ 3 MHz 15
µW
@ 8 MHz 30
@ 16 MHz 50
@ 20 MHz 50
I
DD ON
Current Dissipation
@ 3 MHz
(1)
150 250
µA
@ 8 MHz
(2)
300 530
@ 16 MHz
(3)
300 530
@ 20 MHz
(4)
450 650
Table 46-11. Main Oscillator Characteristics (Continued)
Symbol Parameter Conditions Min Typ Max Unit
1K
XIN XOUT GND
C
LEXT
C
LEXT
C
CRYSTAL
SAM9263
Table 46-12. Crystal Characteristics
Symbol Parameter Conditions Min Typ Max Unit
ESR Equivalent Series Resistor Rs
Fundamental @ 3 MHz 200
Ω
Fundamental @ 8 MHz 100
Fundamental @ 16 MHz 80
Fundamental @ 20 MHz 50
C
m
Motional Capacitance 8fF
C
SHUNT
Shunt Capacitance 7pF