LC717A10ARGPGEVB CapacitanceDigitalConverter LSI for Electrostatic Capacitive Touch Sensors Evaluation Board User's Manual http://onsemi.com EVAL BOARD USER’S MANUAL Introduction In order for evaluation, it is necessary to obtain an USB-to-Serial conversion module for SPI communication, a PC to evaluate software, and a board with a designed switch pattern. This manual contains configuration, usage and main specifications regarding Electrostatic Capacitive Touch Sensor Evaluation Board (LC717A10ARGPGEVB). For the latest edition of this manual, please refer to ON Semiconductor homepage. (http://www.onsemi.com) • Electrostatic Capacitive Touch Sensor Evaluation Product Outline • This product is a board that can be used to evaluate LSI “LC717A10AR”. Due to the fact it is 600 mil wide DIP shape, it is easy to use. It can be set up to evaluate any given touch switch pattern. Board LC717A10ARGPGEVB Accessory Connector Pin (8pin) EVALUATION BOARD LC717A10ARGPGEVB Evaluation Board Outline Power LED 15.24 LED1 Cin8 R1 2.54 ∅ 0.9 Cin7 2.54 Reset Switch 717A10 Touch Sensor LSI LC717A10AR Cin9 Cin6 LC717A10ARGPGEVB Cin10 Cin5 Cin4 Cin11 C1 Cin12 Cin3 U1 Cin13 Cin2 R6 Cin14 Cin1 Cin0 Cin15 nCS nRST R5 SA0 Cref SO C2 R7 CrefAdd C3 SDA R4 SI Cdrv SCL GND SCK R3 R2 3 2 1 GND INTOUT 2 3 J P2 R8 1 INTOUT LED SA1 LED2 JP 1 VDD Figure 1. Configuration of LC717A10ARGPGEVB © Semiconductor Components Industries, LLC, 2014 July, 2014 − Rev. 3 1 Publication Order Number: EVBUM2173/D LC717A10ARGPGEVB • Touch Sensor LSI: • • Reset Switch: Electrostatic Capacitive Touch Sensor LSI LC717A10AR Power LED: When a power is supplied, it turns on. Power supply voltage is 2.6 to 5.5 V. • This is used to RESET Touch Sensor LSI. Use this switch if any abnormality is encountered during operation. INTOUT LED: When the INTOUT signal outputs, it turns on. Evaluation Board Specifications Non Connect Cin11 Cin12 Cin13 Cin14 Cin15 CrefAdd Cdrv INTOUT SA1 Cin7 Cin6 Cin9 LC717A10ARGPGEVB Cin5 Cin10 Cin4 Cin11 C1 Cin3 Cin12 U1 Cin2 Cin13 R6 Cin14 Cin1 Cin0 Cin15 nCS nRST R5 SA0 Cref SO C2 R7 CrefAdd C3 SDA R4 SI SCL Cdrv GND SCK R3 R2 3 2 1 GND Cin6 SA1 LED2 VDD 2 3 J P2 Cref Cin7 1 nRST R1 JP 1 VDD Figure 2. Terminal Pin Layout http://onsemi.com 2 Cin5 Cin4 Cin3 Cin2 Cin1 Cin0 nCS SA0/SO R8 Cin10 LED1 717A10 Cin9 Cin8 INTOUT Cin8 SDA/SI SCL/SCK GND LC717A10ARGPGEVB Table 1. SIGNAL PIN FUNCTIONS Pin Name I/O Cin0 I/O Capacitance Sensor Input Pin Functions Cin1 I/O Capacitance Sensor Input Cin2 I/O Capacitance Sensor Input Cin3 I/O Capacitance Sensor Input Cin4 I/O Capacitance Sensor Input Cin5 I/O Capacitance Sensor Input Cin6 I/O Capacitance Sensor Input Cin7 I/O Capacitance Sensor Input Cin8 I/O Capacitance Sensor Input Cin9 I/O Capacitance Sensor Input Cin10 I/O Capacitance Sensor Input Cin11 I/O Capacitance Sensor Input Cin12 I/O Capacitance Sensor Input Cin13 I/O Capacitance Sensor Input Cin14 I/O Capacitance Sensor Input Cin15 I/O Capacitance Sensor Input Cref I/O Reference Capacitance Input CrefAdd I/O Reference Capacitance Input for Addition Cdrv O Output for Capacitance Sensors Drive INTOUT O Interrupt Output SCL/SCK I Clock Input (I2C)/Clock Input (SPI) nCS I Interface Selection/Chip Select Inverting Input (SPI) nRST I External Reset Signal Inverting Input (2.2 kW Pull-up, with Switch) SA1 I Slave Address Selection (I2C) SDA/SI I/O Data Input and Output (I2C)/Data Input (SPI) SA0/SO I/O Slave Address Selection (I2C)/Data Output (SPI) (JP2 100 kW Pull-down) VDD − Power Supply (2.6 V to 5.5 V). It is Connected to VDD of LC717A10AR GND − Ground (Earth). It is Connected to VSS of LC717A10AR Table 2. MAIN SPECIFICATIONS Parameter Conditions Remarks Board Size 35.56 × 20.32 (mm) Board Material Glass Epoxy (FR4) Supply Voltage 2.6 to 5.5 V Capacitance Touch Sensor LC717A10AR Communication Specification SPI Copper Foil: 35 mm, Thickness: 1.6 mm, 2-layer Board It can be change to I2C Compatible Bus by Parts Exchange http://onsemi.com 3 LC717A10ARGPGEVB Table 3. JUMPER, PATTERN FOR ADDITIONAL PARTS Pattern Parameter C2 Pattern for Cref Capacity Adjustment Implement capacitor of any capacity as needed. (Size: 1608) Set Contents C3 Pattern for CrefAdd Capacity Adjustment Implement capacitor of any capacity as needed. (Size: 1608) R3 Pattern for SCL Pull-up When I2C compatible bus is chosen by nCS, implement a resistance of 2.2 kW. (Size: 1608) (Pull-up VDD) R4 Pattern for SDA Pull-up When I2C compatible bus is chosen by nCS, implement a resistance of 2.2 kW. (Size: 1608) (Pull-up VDD) R5 Pattern for nCS Pull-up When I2C compatible bus is chosen by nCS, implement a resistance of 2.2 kW. (Size: 1608) (Pull-up VDD) R7 Reserve Pattern (R7 Initialization: Short) (Size: 1608) (R8 Initialization: Open) (Size: 1608) R8 Reserve Pattern JP1 Pattern for I2C Compatible Bus Slave Address Selection When I2C compatible bus is chosen by nCS, set the I2C compatible bus slave address by JP1 and JP2. When SPI is chosen, connect to the ground. (JP1 Initialization: Ground Short) 1−2 Short: H Level 2−3 Short: L Level JP2 Pattern for I2C Compatible Bus Slave Address Selection/SO Pull-down When I2C compatible bus is chosen by nCS, set the I2C compatible bus slave address by JP1 and JP2. When SPI is chosen, implement a resistance of 100 kW between 2 to 3. (It has been implemented.) (JP2 Initialization: Ground Pull-down) 1−2 Short: H Level 2−3 Short: L Level Table 4. LC717A10AR I2C COMPATIBLE BUS SLAVE ADDRESS SA1 Input (JP1) SA0 Input (JP2) 7bit Slave Address Binary Notation 8bit Slave Address Low Low 0x16 00101100b (Write) 0x2C 00101101b (Read) 0x2D Low High 0x17 00101110b (Write) 0x2E 00101111b (Read) 0x2F High High Low 0x18 High 0x19 00110000b (Write) 0x30 00110001b (Read) 0x31 00110010b (Write) 0x32 00110011b (Read) 0x33 HOW TO USE 4. Install evaluation software to PC. The evaluation software is available from the ON Semiconductor Homepage, and selecting “LC717A10 software”. Double-click on the icon “LC717A10App.exe” from the installed folder and start it. 5. Press RESET Switch when evaluation board is acting strange. 6. Please note: If the user directly touches the LSI on the evaluation board or patterns with their finger, it may cause malfunction or breakdown. 1. Connection of connector pin. Solder attached connector pin (8pin) at the position pictured in Figure 3. 2. Connect the LC717A10ARGPEVB to a board with a designed switch pattern. When designing a switch pattern, please refer to the Application and Design Note on the ON Semiconductor Touch Sensor Homepage. 3. Connect LC717A10ARGPGEVB to PC through an USB-to-Serial conversion module. Supply the power, and verify the Power LED is turned on. http://onsemi.com 4 LC717A10ARGPGEVB Cin8 LED1 R1 Cin7 717A10 Cin9 Cin6 LC717A10ARGPGEVB Cin10 Cin5 Cin4 Cin11 C1 Cin12 Cin3 U1 Cin13 Cin2 R6 Cin14 Cin1 Cin0 Cin15 nCS nRST R5 SA0 Cref SO C2 R7 CrefAdd C3 SDA R4 SI SCL Cdrv GND SCK R3 R2 3 2 1 GND Non Connect nCS 1 R8 2 3 J P2 SO SI INTOUT SCK SA1 LED2 JP 1 GND VDD VDD Figure 3. Connection of Connector Pin USB and Serial Conversion Module SPI USB Connector Pin (8pin) LC717A10ARGPGEVB PC Header Pin (14pin × 2) Touch Switch Board (Other than LC717A10ARGPGEVB and Connector Pin (8pin) are not Attached.) Figure 4. Connection Example of LC717A10ARGPGEVB http://onsemi.com 5 6 http://onsemi.com Figure 5. Circuit Diagrams SA1 INTOUT Cdrv Cref CrefAdd nRST Cin15 Cin14 Cin13 Cin12 Cin11 Cin10 Cin9 Cin8 SA1 INTOUT Cdrv Cref CrefAdd nRST Cin15 Cin14 Cin13 Cin12 Cin11 Cin10 Cin9 Cin8 CN1 1 VDD 2 GND 3 4 5 6 7 8 I2C/SPI Connecter R7 R5 VDD R8 GND 3 R9 100 kW 2 JP2 1 VDD R4 VDD R3 GND SW R6 2.2 kW VDD GND 2 JP1 3 1 INTOUT SA1 SCL/SCK SDA/SI SA0/SO nCS nRST GND LED2 ORANGE R2 1.5 kW INTOUT 22 23 24 25 26 27 28 C3 21 20 19 18 17 16 15 Cdrv CrefAdd Cref Cin15 Cin14 Cin13 Cin12 Cin0 Cin1 Cin2 Cin3 VDD VSS Cin4 GND LED1 GREEN R1 1.5 kW VDD 1 2 3 4 5 6 7 VDD 14 13 12 11 10 9 8 GND C1 1 mF VDD SDA/SI SA0/SO nCS Cin0 Cin1 Cin2 Cin3 Cin4 Cin5 Cin6 Cin7 VDD GND SCL/SCK U1 LC717A10AR Cin11 Cin10 Cin9 Cin8 Cin7 Cin6 Cin5 C4 VDD GND SCL/SCK SDA/SI SA0/SO nCS Cin0 Cin1 Cin2 Cin3 Cin4 Cin5 Cin6 Cin7 LC717A10ARGPGEVB CIRCUIT DIAGRAMS LC717A10ARGPGEVB PRECAUTION FOR USE For approach in the use of LSI and design rule of the switch pattern: Please refer to the Application Note and Design Note in ON Semiconductor Touch Sensor Homepage. 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