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3v switching characteristics, Cs5509 – Cirrus Logic CS5509 User Manual

Page 5

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CS5509

DS125F3

5

3.3V SWITCHING CHARACTERISTICS

(T

A

= 25 °C; VA+ = 5V ±5%; VD+ = 3.3V ±5%; Input

Levels: Logic 0 = 0V, Logic 1 = VD+; C

L

= 50 pF) (Note 2)

Parameter

Symbol Min

Typ

Max

Unit

Master Clock Frequency

Internal Oscillator

External Clock

XIN

f

clk

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

t

rise

-
-

-

50

1.0

-

µs
ns

Fall Time

Any Digital Input

(Note 10)

Any Digital Output

t

fall

-
-

-

20

1.0

-

µs
ns

Start-Up

Power-On Reset Period

(Note 11)

t

res

-

10

-

ms

Oscillator Start-up Time

XTAL = 32.768 kHz (Note 12)

t

osu

-

500

-

ms

Wake-up Period

(Note 13)

t

wup

-

1800/f

clk

-

s

Calibration

CONV Pulse Width (CAL = 1)

(Note 14)

t

ccw

100

-

-

ns

CONV and CAL High to Start of Calibration

t

scl

-

-

2/f

clk

+200

ns

Start of Calibration to End of Calibration

t

cal

-

3246/f

clk

-

s

Conversion

CONV Pulse Width

t

cpw

100

-

-

ns

CONV High to Start of Conversion

t

scn

-

-

2/f

clk

+200

ns

Set Up Time

BP/UP stable prior to DRDY falling

t

bus

82/f

clk

-

-

s

Hold Time

BP/UP stable after DRDY falls

t

buh

0

-

-

ns

Start of Conversion to End of Conversion

(Note 15)

t

con

-

1624/f

clk

-

s