Техническая Спецификация для Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK

 1303

SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

Notes:

1. R

S

 is the equivalent series resistance.

2. C

LEXT32

 is determined by taking into account internal, parasitic and package load capacitance. 

32 kHz Oscillator Characteristics

1/(t

CP32KHz

)

Crystal Oscillator Frequency

32 768

kHz

C

CRYSTAL32

Load Capacitance

Crystal @ 32.768 kHz

6

12.5

pF

C

External Load Capacitance

C

CRYSTAL32 

= 6 pF

6

pF

C

CRYSTAL32 

= 12.5 pF

19

pF

Duty Cycle

40

60

%

t

ST

Startup Time

R

S

 = 50 k

C

CRYSTAL32 

= 6 pF

400

ms

C

CRYSTAL32 

= 12.5 pF

900

ms

R

S

 = 100 k

C

CRYSTAL32 

= 6 pF

600

ms

C

CRYSTAL32 

= 12.5 pF

1200

ms

32 kHz Crystal Characteristics

ESR

Equivalent Series Resistor Rs

Crystal @ 32.768 kHz

50

100

k

Ω

C

M

Motional Capacitance

Crystal @ 32.768 kHz

3

fF

C

S

Shunt Capacitance

Crystal @ 32.768 kHz

2

pF

XIN32

XOUT32

GNDBU

C

LEXT32

C

LEXT32

C

CRYSTAL32

SAM9M10