Atmel SAM4L Xplained Pro Starter Kit Atmel ATSAM4L-XSTK ATSAM4L-XSTK Data Sheet

42023E–SAM–07/2013

Figure 42-3. Oscillator Connection

C

L

Crystal load capacitance

(1)

6

18

pF

C

SHUNT

Crystal shunt capacitance

(1)

7

C

XIN

Parasitic capacitor load

(2)

TQFP100 package

4.91

C

XOUT

Parasitic capacitor load

(2)

3.22

t

STARTUP

Startup time

(1)

SCIF.OSCCTRL.GAIN = 2

30 000

 (3)

 cycles

I

OSC

Current consumption

(1)

Active mode, f = 0.6MHz, 
SCIF.OSCCTRL.GAIN = 0

30

µA

Active mode, f = 4MHz,

SCIF.OSCCTRL.GAIN = 1

130

Active mode, f = 8MHz,

SCIF.OSCCTRL.GAIN = 2

260

Active mode, f = 16MHz,

SCIF.OSCCTRL.GAIN = 3

590

Active mode, f = 30MHz,

SCIF.OSCCTRL.GAIN = 4

960

1.

These values are based on simulation. These values are not covered by test limits in production or characterization.

2.

These values are based on characterization. These values are not covered by test limits in production.

3.

Nominal crystal cycles.

Table 42-23. Crystal Oscillator Characteristics

C

S H U N T

L

M

R

M

C

M

C

S TR A Y

C

LE X T

C

LE X T

Xin

X out

C rystal