FS9912 datasheet(11/34 Pages) FORTUNE

11 / 34 page

FS9912

Rev. 3.6

11/34

Absolute Maximum Ratings

Parameter

Rating

Unit

Supply Voltage to Ground Potential

-0.3 to 5.0

Applied Input/Output Voltage

-0.3 to VDD+0.3

Ambient Operating Temperature

0 to +70

°C

Storage Temperature

-55 to +150

°C

Soldering Temperature, Time

260

°C, 10 Sec

10. Electrical Characteristics

10.1 DC Characteristic (Unless otherwise specified VDD=3V，Ta=25℃)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Recommend Operation

Power Voltage

2.4

3.6

IDD

Supply Current

CPU, ADC On

1.5

IPO1

Power-off Supply Current

At Power Off, LVR

disable

IPO2

Power-off Supply Current

At Power Off, LVR

enable

VIH

Digital Input High Voltage

VDD-0.5

VIL

Digital Input Low Voltage

0.5

Ipu

Pull up Current

Vin=0

IOH

High Level Output Current

VOH=0.9xVDD

IOL

High Level Output Current

VOL=0.1xVDD

AGND

Analog Ground Voltage

VDD/2

VDDA

Analog Power

VREF

Build in Reference Voltage

To AGND

1.20

VCREF

Build in Reference Voltage

Supply Voltage Coefficient

VDD=2.4~3.6

-2000

+2000

ppm/V

TCREF

Build in Reference Voltage

Temperature Coefficient

Ta=0~50℃

100

ppm/℃

VLBAT

Low Battery Detector Voltage

2.4

FLCD

LCD Frame Frequency

VLCD

LCD Pk-Pk Driver Voltage

2.8

3.2

10.2 ADC Characteristic (Unless otherwise specified VDD=3V，Ta=25℃)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VAIN

ADC Differential Input Range

AGND-0.4 0

AGND+0.

VRFIN

ADC Reference Input Range

0.25

0.5

Resolution

±15625

Counts

ADC Linearity Error

VRFIN=0.44V

-0.1

+0.1

ADC Input Offset Voltage

With Zero Cancellation

VRFIN=0.44V

VAIN=0

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