AS3525 datasheet(168/194 Pages) AMSCO

168 / 194 page

AS3525-A/-B C22O22

Data Sheet, Confidential

www.austriamicrosystems.com

Revision 1.13

168

- 194

7.4.22

2-Wire-Serial Control Interface

7.4.22.1 General

There is an I2C slave block implemented to have access to 64 byte of setting information.

The I2C address is: Adr_Group8 - audio processors

•

8Ch_write

•

8Dh_read

Figure 59 I2C timing

7.4.22.2 Parameter

Table 158 I2C Operating Conditions

Symbol

Parameter

Notes

Min

Typ

Max

Unit

VIL

Input low voltage

CSCL, CSDA (max 30%DVDD)

0.87

VIH

Input high voltage

CSCL, CSDA (min 70%DVDD)

2.03

5.5

HYST

Hysteretic

CSCL, CSDA

200

450

800

VOL

Output low voltage

CSDA @3mA

0.4

Tsp

Spike insensitivity

100

Clock high time

500

Clock low time

500

TSU

Data setup time

CSDA has to change TSU before rising

edge of CSCL

100

THD

Data hold time

No hold time needed for CSDA relative

to rising edge of CSCL

Clock start-condition hold time CSCL HIGH hold time relative to

CSDA edge for start/stop/rep_start

200

TPD

Output delay

CSDA propagation delay relative to

low going edge of CSCL

DVDD =2.9V, Tamb=25ºC; unless otherwise specified

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