FMA1125DC-24S-CS Fujitsu, FMA1125DC-24S-CS Datasheet - Page 23

CONTROLLER, TOUCH SENSOR, 24SSOP

FMA1125DC-24S-CS

Manufacturer Part Number
FMA1125DC-24S-CS
Description
CONTROLLER, TOUCH SENSOR, 24SSOP
Manufacturer
Fujitsu
Datasheet

Specifications of FMA1125DC-24S-CS

Brief Features
Patented Fully Digital Architecture, Configurable Touch Input Channels, Host Interface Via I2C
Supply Voltage Range
2.3V To 5.5V
Operating Temperature Range
-40°C To +90°C
Digital
RoHS Compliant
Ic Function
Touch Sensor Controller
Tuning System
The tuning system helps the developer tune the target board with various parameters that determine the performance of the target touch
board. The tuning system is positioned between the PC and the target touch board (Figure 7). It allows the developer to view all the
necessary parameters for tuning and transfers the desired parameters to the FMA1125DC attached on the target touch board.
Hardware
Using this tuning system, the user can send commands to the MCU or receive touch data from the MCU through the USB interface. The
MCU on the USB interface board controls the FMA1125DC on the target touch board via the I
access internal registers in the FMA1125DC.
I
Cable
2
C Communication
4CH I
2
C Communication Port
FMA1125DC Touch Board
PC
Figure 7: Conceptual Diagram for Tuning System
Figure 8: Tuning System (USB Interface Board)
Communication Line On/Off Switch
USB
LCD Brightness
Control Resistor
ROM Select Switch
Confidential
System
Tuning
FMA1125DC Tuning Kit Main Board
16x2 Display LCD
I
2
C
FMA1125DC Demo Board
Test Pin
Touch Board
2
C interface by reading/writing data to
Buzzer
Power On/Off Switch
USB Cable
FMA1125DC
Fujitsu Microelectronics America, Inc.
21

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