CS5346 datasheet(18/40 Pages) CIRRUS

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DS861PP1

CS5346

SWITCHING CHARACTERISTICS - CONTROL PORT - I²C FORMAT

Inputs: Logic 0 = DGND = AGND = 0 V, Logic 1 = VLC, CL =30pF.

17. Data must be held for sufficient time to bridge the transition time, tfc, of SCL.

Parameter

Symbol

Min

Max

Unit

SCL Clock Frequency

fscl

100

kHz

RST Rising Edge to Start

tirs

500

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 17)

thdd

µs

SDA Setup time to SCL Rising

tsud

250

Rise Time of SCL and SDA

trc, trd

-1

µs

Fall Time SCL and SDA

tfc, tfd

300

Setup Time for Stop Condition

tsusp

4.7

µs

Acknowledge Delay from SCL Falling

tack

300

1000

bu f

hds t

lo w

hdd

high

su d

Sto p

S t a r t

SD A

SCL

irs

RS T

hds t

t sust

t susp

St a r t

Sto p

R epe a t e d

ac k

Figure 5. Control Port Timing - I²C Format

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