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PDF FS9922-DMM3 Data sheet ( Hoja de datos )

Número de pieza FS9922-DMM3
Descripción Integrated Circuits
Fabricantes Fortune Semiconductor 
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No Preview Available ! FS9922-DMM3 Hoja de datos, Descripción, Manual

REV. 1.0 FS9922-DMM3-DS-10_EN
DEC 2009
Datasheet
FS9922-DMM3
Integrated Circuits of 4,000 Counts
Auto-ranging Digital Multimeter with Bar Graph

1 page




FS9922-DMM3 pdf
FS9922-DMM3
1. General Description
FS9922-DMM3 is a high performance, low power consumption and 3 4/5 digits (4000 Counts) dual
Analog to Digital Converter with a built-in microprocessor. It includes a 8 bits microprocessor, low noise
and the OPAMP of high stability, AC rectifier OPAMP, voltage doubling and regulated voltage, highly
regulated bandgap, auto measurement switch and function control circuit, buzzer driver circuit, clock
oscillation circuit, backlight display control circuit, LCD driver circuit and so on.
Built-in dual Analog to Digital Converter , one is a high accuracy ADC for main measurement; the other
is a high speed ADC whose measurement result shows by a 41 segment analog section bar that can
respond fast, the analog indication owns the property of immediate response and can provide the fast
measurement and monitoring of instant signals.
With the microprocessor, FS9922-DMM3 can do the logic function control via the I/O ports. By selecting
the codes of MEA1 MEA5 pins can realize various functions during measurement.
By triggering the keys of the settings of SELECT, RANGE, REL/RS232, HZ/DUTY, HOLD/LIGHT,
MAX/MIN keys, you can realize the functions of function switch, measurement mode select, relative
value measurement, frequency/duty cycle measurement, reading hold, MAX/MIN value hold, backlight
display, RS232 output and so on.
With the auto power off function, when there is no action on the mode switch or keys of the meter
within 15 minutes, the system will enter into the sleep mode automatically to save the power. This
function can also be cancelled during use.
FS9922-DMM3 has LCD driver circuits, which is designed for driving LCD.
FS9922-DMM3 is made by the large integrated circuit technology, and therefore greatly rises up the
reliability of the product. It makes the design simple, the volume small, low power consumption by
using 3V power source, and convenient to use the power supply of battery, especially suitable for the
application on the palm mode meter.
FS9922-DMM3 is a microprocessor-embedded and multifunctional measuring dual ADC; fewer external
components added can form a high accuracy, multifunctional and low cost measuring meter.
2. Features
z Max. Display: 4000 Counts (Frequency 9999), Bar graph 41 segments.
z Converter Rate: 3 times/sec; Bar graph: 30 times/sec.
z Measuring Mode: Fully Auto/Manual measurement.
z Pole Indication: Auto.
z Operation Voltage: 2.4V~3.6V
z Operation Current: 2mA
z Low Power Indication: about 2.4V
z Buzzer Frequency: about 2.7kHz
z AC Rectifying: Embedded OPAMP
z Current Resistance: μA is 50; mA is 0.5; A is 0.005
z Function Keys: SELECT, RANGE, REL/ RS232, HZ/DUTY, HOLD/ LIGHT, MAX/MIN
z Data Output: RS232 (2400bps )
z Auto Power-off: 15min. can be cancelled.
z Unit Symbol and Backlight Display
Rev. 1.0
5/35

5 Page





FS9922-DMM3 arduino
FS9922-DMM3
11111
/
/ ●●
0 0 0 0 0 AC/DC A
AC/DC ● ●
(4.000A/40.00A)
0
1
1
1
1
Ohm/Buzzer/Diode /B/D
●●
Note: “”means the function key in the column is in operation
●●
9.2 ADP Input/User-Defined Symbols and Confirmation of Decimal Locations
MEA1 MEA5: no connection is “1”; connect to INT is “0”
ME ME ME ME ME Input
Input
Decimal
A5 A4 A3 A2 A1 Voltage
channel Location
Range
01
1 01
±400mV
SA
4.000
01
0 11
40.00
00
1 11
400.0
01
0 01
4000
Symbol
Location
COM1,
SEG27
COM2,
SEG27
COM3,
SEG27
COM4,
SEG27
Symbol
Defined
by users
Rev. 1.0
11/35

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