CS2000-CP_15 datasheet(10/37 Pages) CIRRUS

10 / 37 page

CS2000-CP

DS761F3

CONTROL PORT SWITCHING CHARACTERISTICS- I²C FORMAT

Inputs: Logic 0 = GND; Logic 1 = VD; CL =20pF.

Notes: 13. Data must be held for sufficient time to bridge the transition time, tf, of SCL.

Parameter

Symbol

Min

Max

Unit

SCL Clock Frequency

fscl

100

kHz

Bus Free-Time Between Transmissions

tbuf

4.7

µs

Start Condition Hold Time (prior to first clock pulse)

thdst

4.0

µs

Clock Low Time

tlow

4.7

µs

Clock High Time

thigh

4.0

µs

Setup Time for Repeated Start Condition

tsust

4.7

µs

SDA Hold Time from SCL Falling

(Note 13)thdd

µs

SDA Setup Time to SCL Rising

tsud

250

Rise Time of SCL and SDA

-1

µs

Fall Time SCL and SDA

300

Setup Time for Stop Condition

tsusp

4.7

µs

Acknowledge Delay from SCL Falling

tack

300

1000

Delay from Supply Voltage Stable to Control Port Ready

tdpor

100

µs

t buf

t hdst

low

t r

t f

hdd

t high

t sud

t sust

t susp

Stop

Start

Stop

Repeated

SDA

SCL

tdpor

Figure 5. Control Port Timing - I²C Format

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