AS3665 datasheet(7/78 Pages) AMSCO

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AS3665

Datasheet, Confidential - Elect rical Chara c t e ri st ics P i n D e scri pti o n

ADCTOFFSE

ADC temperature

measurement offset

value

393

ºC

ADCTC

Code temperature

coefficient

1.322

ºC/

Code

TTOL

Temperature sensor

accuracy

-10

+10

ºC

Audio Input

RAUDIO_IN Audio Input resistance

pin INT/AUDIO_IN if used as analog input;

at maximum input gain (+30dB)

Digital Interface

VIH

High Level Input

Voltage

Pins SDA, SCL, EN, CLK32K, TRIG,

INT/AUDIO_IN, GPO

1.26

VVBAT

VIL

Low Level Input

Voltage

0.0

0.54

VOL

Low Level Output

Voltage

Pins SDA, TRIG, INT/AUDIO_IN, GPO

IOL=3mA

0.2

ILEAK

Leakage Current

Pins SDA, SCL, EN, CLK32K, TRIG, INT/

AUDIO_IN, GPO

0.01

1.0

µA

2C mode timings - see Figure 3 on page 7

fSCLK

SCL Clock Frequency

400

kHz

tBUF

Bus Free Time

Between a STOP and

START Condition

1.3

µs

tHD:STA

Hold Time (Repeated)

START Condition

0.6

µs

tLOW

LOW Period of SCL

Clock

1.3

µs

tHIGH

HIGH Period of SCL

Clock

0.6

µs

tSU:STA

Setup Time for a

Repeated START

Condition

0.6

µs

tHD:DAT

Data Hold Time

00.9

µs

tSU:DAT

Data Setup Time

100

Rise Time of Both

SDA and SCL Signals

20 +

0.1CB

300

Fall Time of Both SDA

and SCL Signals

20 +

0.1CB

300

tSU:STO

Setup Time for STOP

Condition

0.6

µs

Capacitive Load for

Each Bus Line

CB — total capacitance of one bus line in pF

400

CI/O

I/O Capacitance

(SDA, SCL)

tTIMEOUT

2C timeout

If SCL and SDA are low for longer than this

time, the AS3665 is switched into shutdown

mode

100

Table 3. Electrical Characteristics (Continued)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

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