CS5509

4

DS125F2

Notes: 10. Specidified using 10% and 90% points on waveform of interest.

11. An internal power-on-reset is activated whenever power is applied to the device.

12. Oscillator start-up time varies with the crystal parameters. This specification does not apply when using

an external clock source.

reset time elapses.

14. Calibration can also be initiated by pulsing CAL high while CONV=1.

Parameter

Symbol

Min

Typ

Max

Unit

Master Clock Frequency

Internal Oscillator

External Clock

XIN

30.0

30

32.768

-

53.0

330

kHz

kHz

Master Clock Duty Cycle

40

-

60

%

Rise Times

Any Digital Input

(Note 10)

Any Digital Output

-

-

-

50

1.0

-

µs

ns

Fall Time

Any Digital Input

(Note 10)

Any Digital Output

-

-

-

20

1.0

-

µs

ns

Start-Up

Power-On Reset Period

(Note 11)

-10-

ms

Oscillator Start-up Time

XTAL = 32.768 kHz (Note 12)

-500-

ms

Wake-up Period

(Note 13)

-

-s

Calibration

CONV Pulse Width (CAL = 1)

(Note 14)

100

-

-

ns

CONV and CAL High to Start of Calibration

--

ns

Start of Calibration to End of Calibration

-

-s

Conversion

CONV Pulse Width

100

-

-

ns

CONV High to Start of Conversion

--

ns

Set Up Time

BP/UP stable prior to DRDY falling

--

s

Hold Time

BP/UP stable after DRDY falls

0-

-

ns

Start of Conversion to End of Conversion

(Note 15)

-

-s