EVALB1127-SUPPORT Fujitsu Semiconductor America Inc, EVALB1127-SUPPORT Datasheet

EVALB1127-SUPPORT

Manufacturer Part Number

EVALB1127-SUPPORT

Description

KIT TUNING/DEV BOARD W/SUPPORT

Manufacturer

Fujitsu Semiconductor America Inc

Datasheets

1.FMA1127DC-30S.pdf (32 pages)

2.EVALB1127.pdf (2 pages)

3.EVALB1127.pdf (2 pages)

Specifications of EVALB1127-SUPPORT

Sensor Type

Touch, Capacitive

Interface

I²C

Voltage - Supply

2.3 V ~ 5.5 V

Embedded

Utilized Ic / Part

FMA1127

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Sensitivity

Sensing Range

Other names

865-1052

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FMA1127

Touch Sensor Controller

Description

Features

The FMA1127 is a low-power, compact, flexible touch sensor

controller that converts capacitance generated between the human

body and a conductive touch pad to digital data without any

analog signal processing. It includes touch sensor technology that

compares reference and sensor input impedances to detect touch,

all in digital domain.

Its programmability increases design flexibility and gives better

performance and stability for a broad range of applications. The

FMA1127’s Automatic Impedance Calibration (AIC™) function

can be easily configured to support different sensitivities for

individual channels independently as well as to change values of

parameters such as calibration intervals. AIC may also be

temporarily paused and resumed by a host MCU.

• Patented full-digital architecture

• Supports 12 input channels (40QFN and 30SSOP) or 9 input

• Programmable registers to characterize applications

• I 2 C interface with the host MCU

• Configurable Automatic Impedance Calibration (AIC™ )

• Two types of interrupts (GINT for general purpose and

channels (32QFN and 24SSOP) or 6 input channels

(24QFN and 20SSOP)

TINT for touch detection)

FMA1127

Fujitsu

• 8-bit resolution of touch strength data (256 steps)

• Three different modes for Adjacent Pattern Interference

• Configurable DIO pins as direct touch outputs, extended

• Beep generation for tactile feeling

• Idle and Sleep modes for power saving

• De-bounced touch outputs

Among the many features of the FMA1127 touch sensor

controller, is the Adjacent Pattern Interference Suppression

(APIS™) which acts as a filter to eliminate adjacent key or

pattern interference. The FMA1127 also gives touch-strength

output in addition to touch on/off output. There are a number of

general-purpose DIOs depending on the package type that can be

configured and programmed to meet customers’ specific needs. This

gives customers greater flexibility and value.

The FMA1127 comes in various package types to support different

numbers of input channels and DIOs.

The FMA1127 touch sensor controller is developed and owned by

ATLab Inc., South Korea, and is distributed by Fujitsu

Microelectronics America, Inc.

Touch Pad System Model

Zref

Zin

Suppression (APIS™)

GPIOs, or external interrupt inputs.

Touch Pad

Principle of Touch Detection

Impendance

Detection

Change

Zin

Zref

Impedance Status

Detected

Contact

Touch

Finger

Related parts for EVALB1127-SUPPORT

EVALB1127-SUPPORT Summary of contents

Page 1

FMA1127 Touch Sensor Controller Fujitsu FMA1127 Description The FMA1127 is a low-power, compact, flexible touch sensor controller that converts capacitance generated between the human body and a conductive touch pad to digital data without any analog signal processing. It includes ...

Page 2

Touch Sensor Controller Applications • Portable devices such as PDAs, cellular phones, MP3 players, remote controllers, and other integrated input Specifications • Wide voltage range of 2.5V to 5.5V • Current < 0.15mA • Response time as fast as 0.2msec ...

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