SAM3N00A Atmel Corporation, SAM3N00A Datasheet - Page 710
SAM3N00A
Manufacturer Part Number
SAM3N00A
Description
Manufacturer
Atmel Corporation
- Current page: 710 of 752
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35.4.3
Table 35-17. 32.768 kHz Crystal Oscillator Characteristics
Note:
Where
35.4.4
Table 35-18. Crystal Characteristics
710
Symbol
F
P
R
C
C
Symbol
ESR
C
C
req
ON
f
LEXT
para
M
SHUNT
C
1. R
PCB
SAM3N
32.768 kHz Crystal Oscillator Characteristics
32.768 kHz Crystal Characteristics
is the capacitance of the printed circuit board (PCB) track layout from the crystal to the SAM3 pin.
S
is the series resistor.
Parameter
Operating Frequency
Supply Ripple Voltage (on VDDIO)
Duty Cycle
Startup Time
Current consumption
Drive level
Internal resistor
Maximum external capacitor
on XIN32 and XOUT32
Internal Parasitic Capacitance
Parameter
Equivalent Series Resistor (R
Motional capacitance
Shunt capacitance
C
LEXT
XIN32
S)
C
LEXT
= 2x(
Conditions
Normal mode with crystal
Rms value, 10 KHz to 10 MHz
Rs < 50KΩ
Rs < 100KΩ
(1)
Rs < 50KΩ
Rs < 100KΩ
(1)
between XIN32 and XOUT32
C
CRYSTAL
Conditions
Crystal @ 32.768 KHz
Crystal @ 32.768 KHz
Crystal @ 32.768 KHz
SAM3
–
C
para
–
C
C
C
C
C
C
C
C
crystal
crystal
crystal
crystal
crystal
crystal
crystal
crystal
C
PCB
C
XOUT32
LEXT
)
= 12.5pF
= 6pF
= 12.5pF
= 6pF
= 12.5pF
= 6pF
= 12.5pF
= 6pF
Min
0.6
0.6
Min
0.8
40
Typ
50
Typ
650
450
900
650
50
10
1
32.768
11011A–ATARM–04-Oct-10
1200
1400
1200
1600
1400
Max
900
300
500
0.1
1.2
30
60
20
Max
100
3
2
Unit
KHz
mV
µW
MΩ
ms
nA
pF
pF
%
Unit
KΩ
pF
fF
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