FS9922-DMM3

Rev. 1.1

9/35

8.2

Electrical Parameters

Symbol

Parameter

Test Condition

Min.

Typical Max.

Unit

VDD

Recommended

Operation

Power Voltage

2.4

3.6

V

IDD

Operation Current

In DCV Mode

1.5

3

mA

IPO

Sleep Current

In Auto Power-off Status

10

μA

VIH

Digital High Voltage Level

VDD-0.5

V

VIL

Digital Low Voltage Level

0.5

V

AGND

Analog Ground Voltage

VDDA/2

-3%

VDDA/2

VDDA/2

+3%

V

VDDA

Analog Power Supply

3.4

3.9

4.4

V

VBAND

Built in Bandgap Voltage

Voltage

Relative

to

AGND

1.1

1.25

1.4

V

Coefficient of curve of Bandgap

Voltage

along

with

power

voltage

VDD=2.4~3.6V

2

mV/V

REFI

Recommended

referenced

Voltage

Voltage

Relative

to

AGND

0.44

V

VBATT

Low Voltage Detector

Use DC 3V

2.25

2.4

2.55

V

FLCD

LCD Frequency

32

Hz

VLCD

LCD PK-PK Driver Voltage

2.8

3

3.2

V

FBEEP

Buzzer Frequency

2.7

kHz

FRS232

RS232 Baud Rate

2400

bps

IRSOUT

RS232

Transmission

High

Voltage Level Current

VOH=2V

2

mA

“0”Input Reading

DC ADP×1

-0.001

0

0.001

digits

Input=0V

Linearity (Max. Deviation From

Best Straight Line Fit)

DC ADP×1

-1

0

1

Bit

Full Scale±400mV

AC

Measurement

Bandwidth

Error

AC ADP×1

0.2

%

Input 400mVrms

20Hz~1kHz

RCC

Continuity Check Value

10

60

Ω

ADC Measurement O.L Display

Count

4040

counts

Auto range Up Count

4040

counts

Auto range Down Count

360

counts

VFREA

Frequency

Count

Voltage

(Hz/Duty Control)

VIL (relative to AGND)

-60

mV

VIH (relative to AGND)

60

mV

FMAXA

Max. Frequency Input (Hz/Duty

Control)

Vpp=±100mV

Square Wave Input

500

kHz

*1

Duty

Cycle

Measurement

Deviation (Hz/Duty Control)

Vpp=±100mV

Square Wave Input

1

μs

VFRED

Frequency Count Input Voltage

(MEAS=10100)

VIL (relative to AGND)

-600

mV

VIH (relative to AGND)

600

mV

FMAX

(MEAS=10100) Input Frequency

of Frequency Count

Vpp=±600mV

Square Wave Input

5

MHz

*1

(MEAS=10100)Duty

Cycle

Measurement Deviation

Vpp=±600mV

Square Wave Input

100

ns

Accuracy

of

Capacitance

Measurement in Relative Value

Measurement

Status

(by

400.0nF

Mode

standard

adjustment)

40.00 nF Mode

2%+10

digits

400.0 nF Mode

0.5%+3

digits

4.000 μF Mode

1%+2

digits

40.00 μF Mode

1.5%+2

digits

*1 During Duty Cycle measurement, when a square wave is input, the difference comes mainly from the analyzable impulse

width difference of the competitor.

If the input is a 100kHz square wave, which can be divided into 1000 counts, each count

is 10 ns.

Therefore, the max. difference is （100ns/10 ns）=10Counts, 50.0%±1.0% can be measured from 50.0% of output

signal.

The signal larger than 99% or less than 1% might not be able to be measured.