FMA1125DC-24S Fujitsu Semiconductor America Inc, FMA1125DC-24S Datasheet

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FMA1125DC-24S

Manufacturer Part Number
FMA1125DC-24S
Description
IC CTLR TOUCH SENSOR 24SSOP
Manufacturer
Fujitsu Semiconductor America Inc
Type
Capacitiver
Datasheets

Specifications of FMA1125DC-24S

Touch Panel Interface
*
Number Of Inputs/keys
*
Resolution (bits)
*
Data Interface
I²C
Data Rate/sampling Rate (sps, Bps)
*
Voltage Reference
*
Voltage - Supply
2.4 V ~ 5 V
Current - Supply
100µA
Operating Temperature
-40°C ~ 90°C
Mounting Type
Surface Mount
Package / Case
24-SSOP
Output Type
Logic
Interface
I²C
Input Type
Logic
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
865-1049-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FMA1125DC-24S
Manufacturer:
FUJI
Quantity:
20 000
The FMA1125DC 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.
Its programmability provides design flexibility, high performance
and stability for a broad range of applications. The
FMA1125DC’s AIC™ (Automatic Impedance Calibration)
function can be easily configured to support different sensitivities
for individual channels independently as well as to change values
of parameters such as the calibration interval. AIC
temporarily paused and resumed by a host MCU.
Among the many features of the FMA1125DC is APIS™
(Adjacent Pattern Interference Suppression). APIS is a filtering
function that eliminates adjacent key or pattern interference. The
FMA1125DC also gives touch-strength output in addition to
touch on/off output. There are a number of DIOs depending on
the package type that can be configured and programmed to meet
specific requirements, giving customers greater flexibility and
value.
The FMA1125DC comes with various package types to support
different numbers of input channels and DIOs.
• Patented fully digital architecture
• Extremely low power consumption (100μA in active mode)
• Supports 8 input channels (24QFN, 24SSOP, 24SOP)
• Programmable registers to characterize applications
• I
• Configurable Touch Input Channels as extended DIOs
• 6-bit resolution of LED dimming control via DIO pins
• Configurable AIC™ (Automatic Impedance Calibration)
• Two types of interrupts (GINT for general purpose and TINT
or 6 input channels (16QFN,16SOP)
for touch detection)
2
Overview
Features
C interface with the host MCU
FMA1125DC
Touch Sensor Controller
TM
may also be
Confidential
Applications
• 8-bit resolution of touch strength data (256 steps)
• Three different modes for APIS™ (Adjacent Pattern
• Configurable DIO pins as direct touch outputs, extended
• Idle and Sleep modes for power saving
• De-bounced touch outputs
• Portable devices such as PDAs, cellular phones, MP3 players,
• Home appliances and consumer electronic products
• Computer input devices such as mice and keyboards
The FMA1125DC touch sensor controller is developed and
owned by ATLab Inc., South Korea, and is distributed by
Fujitsu Microelectronics America, Inc.
Interference Suppression)
GPIOs or external interrupt inputs
remote controllers, and other integrated input devices
Touch Pad System Model
Touch Pad System Model
Zref
Zin
Zref
Zin
Touch Pad
Touch Pad
Impedance
Impedance
Detection
Detection
Zin < Zref
Change
Change
Impedance Status
Zin
Zref
Impedance Status
Zin
Zref
Ztouch
Touch
Detected

Related parts for FMA1125DC-24S

FMA1125DC-24S Summary of contents

Page 1

... There are a number of DIOs depending on the package type that can be configured and programmed to meet specific requirements, giving customers greater flexibility and value. The FMA1125DC comes with various package types to support different numbers of input channels and DIOs. Features • Patented fully digital architecture • ...

Page 2

... C ......................................................................................................................................6 Application Information.........................................................................................................................................................8 24-pin Package (24QFN) ............................................................................................................................................8 FMA1125DC 24QFN Typical Application Circuit: Internal LDO.............................................................................9 FMA1125DC 24QFN Typical Application Circuit: External LDO Case 1 ..............................................................10 FMA1125DC 24QFN Typical Application Circuit: External LDO Case 2 ..............................................................11 16-pin Package (16QFN) ..........................................................................................................................................12 FMA1125DC 16QFN Typical Application Circuit: Internal LDO...........................................................................13 24-pin Package (24SSOP) ...

Page 3

... Ordering Information Product Code Package Type FMA1125DC-24N 24QFN FMA1125DC-16N 16QFN FMA1125DC-24S 24SSOP FMA1125DC-24P 24SOP FMA1125DC-16P 16SOP Package Pinouts GPIO0 19 PA2 20 FMA1125DC PA3 21 24QFN GPIO1 22 PA4 23 PA5 24-Pin QFN FMA1125DC 24S/24P 24-Pin SOP/SSOP Package Dimension 4mm x 4mm x 0.55mm 3mm x 3mm x 0.575mm 8.2mm x 7.8mm x2.0mm 15 ...

Page 4

Touch Sensor Controller Electrical Characteristics Symbol Parameter ABSOLUTE MAXIMUM RATINGS Tstg Storage Temperature Topr Operating Temperature Hopr Operating Humidity VPH Power Supply Voltage V25 Power Supply Voltage(V25) Vin Input Voltage RECOMMENDED OPERATING CONDITIONS Toprr Operating Temperature Vddp Power Supply Voltage ...

Page 5

... More detailed information is available in the FMA1125DC Tuning Guide. The ICD engine residing in the FMA1125DC controls reference impedance values for each sensor input pin by acquiring each input’s impedance data. It periodically updates all reference values under the condition that all touch pads remain in no-touched status. This auto-calibration function absorbs environmental changes and guarantees product stability. ™ ...

Page 6

Touch Sensor Controller There are three modes in APIS: APIS mode 1: Reports the strongest output only (Figure 3). APIS mode 2: Reports all outputs that exceeds pre-defined thresholds (value of Strength Threshold register) (Figure 4). APIS mode 3: Reports ...

Page 7

... A sec Max. 40ms Min. 2ns sec Max. 40ms Min. 2ns sec Max. 80ms Min. 2ns sec Max. 80ms Min. 2ns sec Max. 160ms Confidential FMA1125DC Active to Sleep Idle to Sleep 1ns 1ns 1ns 1ns 1ns 1ns 1ns 1ns 1ns 1ns 1ns 1ns ...

Page 8

Touch Sensor Controller Communication Specifications for I Table 1: DC Electrical Specifications for I Symbol Parameter LOW Level Input Voltage: Fixed Input Levels Related Input Levels DD HIGH Level Input Voltage: Fixed Input Levels ...

Page 9

... IHmin ) of the SCL signal. LOW 2 C-bus system, but the requirement t SU:DAT 2 C bus specification) before the SCL line is released. t HD:STA SU:STA t HIGH Sr Confidential FMA1125DC Fast-Mode Min. Max 0 400 0.6 1.3 0.6 0.6 – – 0 (2) 0.9 (3) 100 ( 0.1C (5) 300 0.1C ...

Page 10

... P 11 VLDO P 12 VSS Fujitsu Microelectronics America, Inc FMA1125DC 21 10 24QFN Reset, active LOW Test Clock Input Eight Sensor Inputs or DIOs configured by the host MCU: • DIOs also can be configured as extended GPIOs, Direct Touch outputs or External Interrupt Inputs. • PA1~PA3 are capable of LED dimming control. ...

Page 11

... ID selects I C chip ID of the FMA1125DC. When ID is ‘0’, chip ID is 0x68. Otherwise, chip ID is 0x69. • For LED dimming control through DIO ports, sink current circuit is mandatory as shown above. • When PA ports are configured as DIO and used for LED dimming control, the circuit should be the same as DIO ports explained above. ...

Page 12

... ID selects I C chip ID of the FMA1125DC. When ID is ‘0’, chip ID is 0x68. Otherwise, chip ID is 0x69. • For LED dimming control through DIO ports, sink current circuit is mandatory as shown above. • When PA ports are configured as DIO and used for LED dimming control, the circuit should be the same as DIO ports explained above. ...

Page 13

... ID selects I C chip ID of the FMA1125DC. When ID is ‘0’, chip ID is 0x68. Otherwise, chip ID is 0x69. • For LED dimming control through DIO ports, sink current circuit is mandatory as shown above. • When PA ports are configured as DIO and used for LED dimming control, the circuit should be the same as DIO ports explained above. ...

Page 14

... VDDH P 4 VDDL P 5 VSS Fujitsu Microelectronics America, Inc FMA1125DC 14 7 16QFN Description Reset, active LOW Test Clock Input Six Sensor Inputs or DIOs configured by the host MCU: • DIOs also can be configured as extended GPIOs, Direct Touch outputs or External Interrupt Inputs. • PA1~PA3 are capable of LED dimming control. ...

Page 15

... FMA1125DC 16QFN Typical Application Circuit: Internal LDO Notes: • The voltage range of VDDH can be from 2.5V to 5V. • 2k¾ pull-up resistors are required for I • PA1 ~ PA6 can be configured as either touch input channels or DIO ports. 2 • chip ID is fixed to 0x68. • For LED dimming control through DIO ports, sink current circuit is mandatory as shown above. ...

Page 16

... P VDDL P VLDO P VSS P 14 Fujitsu Microelectronics America, Inc FMA1125DC 24S/24P Reset, active LOW 18 Test Clock Input Eight Sensor Inputs or DIOs configured by the host MCU: • DIOs also can be configured as extended GPIOs, Direct Touch outputs or External Interrupt Inputs. • PA1~PA3 are capable of LED dimming control. ...

Page 17

... ID selects I C chip ID of the FMA1125DC. When ID is ‘0’, chip ID is 0x68. Otherwise, chip ID is 0x69. • For LED dimming control through DIO ports, sink current circuit is mandatory as shown above. • When PA ports are configured as DIO and used for LED dimming control, the circuit should be the same as DIO ports explained above. ...

Page 18

... VDDH P VDDL P VSS P 16 Fujitsu Microelectronics America, Inc FMA1125DC 16P Reset, active LOW 13 Test Clock Input Six Sensor Inputs or DIOs configured by the host MCU: • DIOs also can be configured as extended GPIOs, Direct Touch outputs or External Interrupt Inputs. • PA1~PA3 are capable of LED dimming control. ...

Page 19

... FMA1125DC 16SOP Typical Application Circuit: Internal LDO Notes: • The voltage range of VDDH can be from 2.5V to 5V. • 2k¾ pull-up resistors are required for I • PA1 ~ PA6 can be configured as either touch input channels or DIO ports. 2 • chip ID is fixed to 0x68. • For LED dimming control through DIO ports, sink current circuit is mandatory as shown above. ...

Page 20

... Power Connection There are two methods to supply power to the FMA1125DC. One is to receive V25 core voltage from an internal LDO and the other is to receive core voltage from an external power supply. When using the internal LDO, the LDO should be turned on to Sleep mode, which causes slightly higher power consumption than using an external power supply for V25 core voltage ...

Page 21

... External LDO 2.5V GND Case E. VDDH: External 2.5V VLDO: External 2.5V (Internal LDO Off: Register Control) 2.5V VDDH 10m F External LDO VLDO GND VGG Confidential FMA1125DC 5V VDDH External LDO 10m F VLDO GND VGG 3.3V VDDH External LDO 10m F VLDO GND VGG Fujitsu Microelectronics America, Inc ...

Page 22

... Touch Sensor Controller Power Sequence To initialize the FMA1125DC properly, please refer to the Power Sequence below when the power is given initially during boot-up. If the reset transition time during power on does not follow the time sequence below, the Internal LDO and oscillator would not operate normally ...

Page 23

... 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 ...

Page 24

Touch Sensor Controller Software The tuning software installed in the PC will display various parameters that the user can set and monitor. A typical tuning window is shown in Figure 9. 22 Fujitsu Microelectronics America, Inc. Figure 9: A Typical ...

Page 25

... Package Dimensions 24QFN Confidential FMA1125DC 23 Fujitsu Microelectronics America, Inc. ...

Page 26

Touch Sensor Controller 16QFN 24 Fujitsu Microelectronics America, Inc. Confidential ...

Page 27

... Top View 0.75 1.70±0.50 0.75 ø3.00 7.80±0.20 +0.0 0.30 -0.05 12° 0.65 Typ. 8° 0.65 Typ. Side View Confidential FMA1125DC 0.25 BSC 0° Min. 12° 1.20 8° 0.05 Min. 5.40±0.10 0°–8° 1.20 R0.20 R0.20 +0.0 0.20 -0.05 End View R0 ...

Page 28

Touch Sensor Controller 24SOP g 26 Fujitsu Microelectronics America, Inc. Confidential ...

Page 29

... Confidential FMA1125DC 27 Fujitsu Microelectronics America, Inc. ...

Page 30

... Revision History Date Revision April 25, 2009 V1.0 The FMA1125DC touch sensor controller is developed and owned by ATLab Inc., South Korea, and is distributed by Fujitsu Microelectronics America, Inc. FUJITSU MICROELECTRONICS AMERICA, INC. Corporate Headquarters 1250 East Arques Avenue, M/S 333, Sunnyvale, California 94085-5401 Tel: (800) 866-8608 Fax: (408) 737-5999 E-mail: inquiry@fma ...

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