CS4237B datasheet(7/114 Pages) CIRRUS

部件名	CS4237B

功能描述	CrystalClear Advanced Audio System with 3D Sound

Download	114 Pages

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制造商	CIRRUS [Cirrus Logic]

网页	http://www.cirrus.com

标志

7 / 114 page

TIMING PARAMETERS (TA = 25 °C; VA, VD1, VDF1-VDF4 = +5V; outputs loaded with 30pF

Input Levels: Logic 0 = 0V, Logic 1 = VD1)

Parameter

Symbol

Min

Max

Units

E

2PROM Timing (Note 1)

SCL Low to SDA Data Out Valid

tAA

03.5

µs

Start Condition Hold Time

tHD:STA

4.0

-

µs

Clock Low Period

tLSCL

4.7

-

µs

Clock High Period

tHSCL

4.0

-

µs

Start Condition Setup Time

(for a Repeated Start Condition)

tSU:STA

4.7

-

µs

Data In Hold Time

tHD:DAT

0-

µs

Data In Setup Time

tSU:DAT

250

-

ns

SDA and SCL Rise Time

(Note 7)

tR

-1

µs

SDA and SCL Fall Time

tF

-

300

ns

Stop Condition Setup Time

tSU:STO

4.7

-

µs

Data Out Hold Time

tDH

0-

ns

Notes

7. Rise time on SDA is determined by the capacitance of the SDA line with all connected gates and the

external pullup resistor required.

XA0/SCL

XD0/SDA (IN)

XD0/SDA (OUT)

tF

tHSCL

tLSCL

t R

t SU:STA

t HD:STA

t HD:DAT

t SU:DAT

t SU:STO

t AA

tDH

E

2PROM 2-Wire Interface Timing

DS213PP4

CS4237B

7

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