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FT5306 FocalTech Systems Co., Ltd · www.focaltech-systems.com · support@focaltech-systems.com Document Number: D-FT5x06-1005 (Version: 0.2) Revised June 21, 2010 From No.: F-OI-RD01-03-03-B True Multi-Touch Capacitive Touch Panel Controller INTRODUCTION The FT5x06 Series ICs are single-chip capacitive touch panel controller ICs with a built-in 8 bit Micro-controller unit (MCU).They adopt the mutual capacitance approach, which supports true multi-touch capability. In conjunction with a mutual capacitive touch panel, the FT5x06 have user-friendly input functions, which can be applied on many portable devices, such as cellular phones, MIDs, netbook and notebook personal computers. The FT5x06 series ICs include FT5206/FT5306/FT5406, the difference of their specifications will be listed individually in this datasheet. FEATURES z Mutual Capacitive Sensing Techniques z True Multi-touch with up to 10 Points of Absolution X and Y Coordinates z Immune to RF Interferences z Auto-calibration: Insensitive to Capacitance and Environ- mental Variations z Supports up to 28 Transmit Lines and 16 Receive Lines z Supports up to 8.9” Touch Screen z Full Programmable Scan Sequences with Individual Ad- justable Receive Lines and Transmit Lines to Support Various Applications z High Report Rate: More than 100Hz z Touch Resolution of 100 Dots per Inch (dpi) or above -- depending on the Panel Size z Optional Interfaces :I2C/SPI z 2.8V to 3.6V Operating Voltage z Supports 1.8V/3.3V IOVCC z Capable of Driving Single Channel (transmit/receive) Re- sistance: Up to15K Ω z Capable of Supporting Single Channel (transmit/receive) Capacitance: 60 pF z Optimal Sensing Mutual Capacitor: 1pF~4pF z 12-Bit ADC Accuracy z Built-in MCU with 32KB Program Memory, 6KB Data Memory and 256B Internal Data Space z 11 Internal Interrupt Sources and 2 External Interrupt Sources z 3 Operating Modes ¾ Active ¾ Monitor ¾ Hibernate z Operating Temperature Range: -40°C to +85°C swtung 日期印章 (紅) swtung 註解 “Accepted”的設定者是“swtung” FT5x06 DATASHEET FocalTech Systems Co., Ltd · www.focaltech-systems.com · support@focaltech-systems.com Document Number: D-FT5x06-1005 (Version: 0.2) Revised June 21, 2010 From No.: F-OI-RD01-03-03-B \\   1  OVERVIEW .............................................................................................................................................................. 1  1.1  TYPICAL APPLICATIONS ....................................................................................................................................... 1  2  FUNCTIONAL DESCRIPTION ................................................................................................................................. 1  2.1  ARCHITECTURAL OVERVIEW................................................................................................................................. 1  2.2  MCU ................................................................................................................................................................ 2  2.3  OPERATION MODES ............................................................................................................................................ 2  2.4  HOST INTERFACE ................................................................................................................................................ 3  2.5  SERIAL INTERFACE ............................................................................................................................................. 3  2.5.1  I2C ........................................................................................................................................................... 3  2.5.2  SPI ........................................................................................................................................................... 4  3  ELECTRICAL SPECIFICATIONS .................................................................................................................................... 6  3.1  ABSOLUTE MAXIMUM RATINGS .................................................................................................................................. 6  3.2  DC CHARACTERISTICS............................................................................................................................................. 7  3.3  AC CHARACTERISTICS ............................................................................................................................................. 7  3.4  I/O PORTS CIRCUITS.............................................................................................................................................. 8  4  PIN CONFIGURATIONS ............................................................................................................................................... 8  5  PACKAGE INFORMATION .......................................................................................................................................... 11  5.1  PACKAGE INFORMATION OF QFN-5X5-40L PACKAGE .................................................................................................... 11  5.2  PACKAGE INFORMATION OF QFN-6X6-48L PACKAGE .................................................................................................... 12  5.3  PACKAGE INFORMATION OF QFN-8X8-68L PACKAGE .................................................................................................... 13  5.4  ORDER INFORMATION ............................................................................................................................................ 14  TABLE OF CONTENTS FT5x06 DATASHEET FocalTech Systems Co., Ltd Version 0.2 ︱Page 1 of 17 1 OVERVIEW 1.1 Typical Applications FT5x06 accommodate a wide range of applications with a set of buttons up to a 2D touch sensing device, their typical applications are listed below. z Mobile phones, smart phones z MIDs z Netbook z Navigation systems, GPS z Game consoles z Car applications z POS (Point of Sales) devices z Portable MP3 and MP4 media players z Digital cameras FT5x06 Series ICs support 2.8”~8.9” Touch Panel, users may find out their target IC from the specs. listed in the following table, Panel Package Model Name TX RX Type Pin Size Touch Panel Size FT5206GE1 15 10 QFN5*5 40 0.75-P0.4 2.8"～3.8" FT5306DE4 20 12 QFN6*6 48 0.75-P0.4 4.3"～7" FT5406EE8 28 16 QFN8*8 68 0.75-P0.4 7"～8.9" 2 FUNCTIONAL DESCRIPTION 2.1 Architectural Overview Figure2-1 shows the overall architecture for the FT5x06. Figure 2-1 FT5x06 System Architecture Diagram The FT5x06 is comprised of five main functional parts listed below, z Touch Panel Interface Circuits The main function for the AFE and AFE controller is to interface with the touch panel. It scans the panel by sending AC signals to the panel and processes the received signals from the panel. So, it supports both Transmit (TX) and Receive (RX) functions. Key pa- rameters to configure this circuit can be sent via serial interfaces, which will be explained in detail in a later section. FT5x06 DATASHEET FocalTech Systems Co., Ltd Version 0.2 ︱Page 2 of 17 z 8051-based MCU This MCU is 8051 compatible with some enhancements. For instant, larger program and data memories are supported. In addition, a Multiplication-Division unit (MDU) is implemented to speed up the touch detection algorithms. Furthermore, a Flash ROM is implemented to store programs and some key parameters. Complex signal processing algorithms are implemented with firmware running on this MCU to process further the received signals in order to detect the touches reliably. Communication protocol software is also implemented on this MCU to exchange data and control information with the host processor. z External Interface ¾ I2C/SPI: an interface for data exchange with host ¾ INT: an interrupt signal to inform the host processor that touch data is ready for read ¾ WAKE: an interrupt signal for the host to change F5x06 from Hibernate to Active mode ¾ /RST: an external low signal reset the chip. z A watch dog timer is implemented to ensure the robustness of the chip. z A voltage regulator to generate 1.8V for digital circuits from the input VDD3 supply 2.2 MCU This section describes some critical features and operations supported by the 8051 compatible MCU. Figure 2-2 shows the overall structure of the MCU block. In addition to the 8051 compatible MCU core, we have added the following circuits, z MDU: A 16x8 Multiplier and A 32/32 Divider z Program Memory: 32KB Flash z Data Memory: 6KB SRAM z Real Time Clock (RTC): A 32KHz RC Oscillator z Timer: A number of timers are available to generate different clocks z Master Clock: 24/ 48MHz from A 48MHz RC Oscillator z Clock Manager: To control various clocks under different operation conditions of the system Figure 2-2 MCU Block Diagram 2.3 Operation Modes FT5x06 operates in the following three modes: z Active Mode When in this mode, FT5x06 actively scans the panel. The default scan rate is 60 frames per second. The host processor can configure FT5x06 to speed up or to slow down. z Monitor Mode When in this mode, FT5x06 scans the panel at a reduced speed. The default scan rate is 25 frames per second and the host processor can increase or decrease this rate. When in this mode, most algorithms are stopped. A simpler algorithm is being executed to de- termine if there is a touch or not. When a touch is detected, FT5x06 shall enter the Active mode immediately to acquire the touch FT5x06 DATASHEET FocalTech Systems Co., Ltd Version 0.2 ︱Page 3 of 17 information quickly. During this mode, the serial port is closed and no data shall be transferred with the host processor. z Hibernate Mode In this mode, the chip is placed in a power down mode. It shall only respond to the “WAKE” signal from the host processor. The chip therefore consumes very little current, which help prolong the standby time for the portable devices. 2.4 Host Interface Figure 2-3 shows the interface between a host processor and FT5x06. This interface consists of the following three sets of signals: z Serial Interface z Interrupt from FT5x06 to the Host z Wake-up Signal from the Host to FT5x06 Figure 2-3 Host Interface Diagram The serial interfaces of FT5x06 is I2C or SPI. The details of this interface are described in detail in Section 2.5. The interrupt signal (/INT) is used for FT5x06 to inform the host that data are ready for the host to receive. The /WAKE signal is used for the host to wake up FT5x06 from the Hibernate mode. After exiting the Hibernate mode, FT5x06 shall enter the Active mode. 2.5 Serial Interface FT5x06 supports the I2C or SPI interfaces, which can be used by a host processor or other devices. 2.5.1 I2C The I2C is always configured in the Slave mode. The data transfer format is shown in Figure 2-4. Figure 2-4 I2C Serial Data Transfer Format TP FT5x06 TP Module Host /INT Serial Interface RX TX /WAKE FT5x06 DATASHEET FocalTech Systems Co., Ltd Version 0.2 ︱Page 4 of 17 Figure 2-5 I2C master write, slave read Figure 2-6 I2C master read, slave write Table 2-1 lists the meanings of the mnemonics used in the above figures. Table 2-1 Mnemonics Description Mnemonics Description S I2C Start or I2C Restart A[6:0] Slave address A[6:4]: 3’b011 A[3:0]: data bits are identical to those of I2CCON[7:4] register. W 1’b0: Write R 1’b1: Read C ACK P STOP: the indication of the end of a packet (if this bit is missing, S will indicate the end of the current packet and the beginning of the next packet) I2C Interface Timing Characteristics is shown in Table 2-2. Table 2-2 I2C Timing Characteristics Parameter Unit Min Max SCL frequency KHz 0 400 Bus free time between a STOP and START condition us 4.7 \ Hold time (repeated) START condition us 4.0 \ Data setup time ns 250 \ Setup time for a repeated START condition us 4.7 \ Setup Time for STOP condition us 4.0 \ 2.5.2 SPI SPI is a 4 wire serial interface. The following is a list of the 4 wires: z SCK: serial data clock z MOSI: data line from master to slave z MISO: data line from slave to master z SLVESEL: active low select signal SPI transfers data at 8bit packets. The phase relationship between the data and the clock can be defined by the two registers: phase and polck. Some data transfer examples can be found in Figure 2-7 to Figure 2-10. FT5x06 DATASHEET FocalTech Systems Co., Ltd Version 0.2 ︱Page 5 of 17 Figure 2-7 SPI Data Transfer Format (Phase=0, POLCK=0) Figure 2-8 SPI Data Transfer Format (PHASE=0, POLCK=1) Figure 2-9 SPI Data Transfer Format (Phase=1, POLCK=0) Figure 2-10 SPI Data Transfer Format (Phase=1, POLCK=1) SPI can be configured into either Master or Slave mode via the MAS bit of the SPI0CON register. When in the Master mode, the SPI needs to supply the data clock, whose frequency relationship with the Master clock can be set by CLKDVD bits of the SPI0CON register. When it is configured in the Slave mode, the clock, SCK, is supplied by the external Master. The maximum data clock frequency must not be higher than 8 mclkF . SPI Interface Timing Characteristics is shown in the following Figure2-11,Figure2-12 and Table 2-3. FT5x06 DATASHEET FocalTech Systems Co., Ltd Version 0.2 ︱Page 6 of 17 Figure 2-11 SPI Timing PHASE = 0 Figure 2-12 SPI Timing PHASE = 1 Tms: The time between the first cycle of SCK and the beginning of the valid SLVSEL in the master mode Tme: The time between the end of last cycle of SCK and the beginning of invalid SLVSEL in the master mode Tml: The minimum trailing time of the invalid SLVSEL in the master mode Tss0: The time between the beginning of the valid SLVSEL and the first bit valid output data in the slave mode and when phase = 0 Table 2-3 SPI Timing Characteristics Symbol Unit Value Tms Cycle of SCK 1 Tme Cycle of SCK 1 Tml Cycle of SCK 1 Tss0 Cycle of SPI internal clock 4 3 ELECTRICAL SPECIFICATIONS 3.1 Absolute Maximum Ratings Table 3-1 Absolute Maximum Ratings Item Symbol Unit Value Note Power Supply Voltage 1 VDDA - VSSA V -0.3 ~ +3.6 1, 2 Power Supply Voltage 2 VDD3 – VSS V -0.3 ~ +3.6 1, 3 I/O Power Supply Voltage Vt V -0.3 ~ IOVCC + 0.3 1,4 Operating Temperature Topr ℃ -40 ~ +85 1 Storage Temperature Tstg ℃ -55 ~ +110 1 Notes 1、If used beyond the absolute maximum ratings, FT5x06 may be permanently damaged. It is strongly recommended that the device be used within the electrical characteristics in normal operations. If exposed to the condition not within the electrical characteristics, it may affect the reliability of the device. 2、Make sure VDDA(high)≥VSSA (low) 3、Make sure VDD (high)≥VSS (low) 4、IOVCC is set to VDD3 or VDDD by software configuration. FT5x06 DATASHEET FocalTech Systems Co., Ltd Version 0.1 ︱Page 7 of 17 3.2 DC Characteristics Table 3-2 DC Characteristics (VDDA=VDD3=2.8~3.3V, Ta=-40~85℃) Item Symbol Unit Test Condition Min. Typ. Max. Note Input high-level voltage VIH V 0.7 x IOVCC -- IOVCC Input low -level voltage VIL V -0.3 -- 0.3 x IOVCC Output high -level voltage VOH V IOH=-0.1mA 0.7 x IOVCC -- -- Output low -level voltage VOL V IOH=0.1mA -- -- 0.3 x IOVCC I/O leakage current ILI μA Vin=0~VDDA -1 -- 1 Current consumption （Normal operation mode） Iopr mA VDDA=VDD3 = 2.8V Ta=25℃ MCLK=24MHz -- 6 -- Current consumption （Monitor mode） Imon mA VDDA=VDD3 = 2.8V Ta=25℃ MCLK=24MHz -- 4 -- Current consumption （Sleep mode） Islp mA VDDA=VDD3 = 2.8V Ta=25℃ MCLK=24MHz -- 0.03 -- Step-up output voltage VDD5 V VDDA=VDD3= 2.8V 5 5.25 5.6 Power Supply voltage VDDA VDD3 V 2.8 -- 3.6 3.3 AC Characteristics Table 3-3 AC Characteristics of Oscillators Item Symbol Unit Test Condition Min. Typ. Max. Note OSC clock 1 fosc1 MHz VDD3 = 2.8V Ta=25℃ 43 48 52 OSC clock 2 fosc2 KHz VDD3 = 2.8V Ta=25℃ 29 32 36 Table 3-4 AC Characteristics of TX & RX Item Symbol Unit Test Condition Min Typ Max Note TX acceptable clock ftx KHz 100 150 270 TX output rise time Ttxr nS -- 20 -- TX output fall time Ttxf nS -- 20 -- RX input voltage Trxi V 1.2 -- 1.6 FT5x06 DATASHEET FocalTech Systems Co., Ltd Version 0.1 ︱Page 8 of 17 3.4 I/O Ports Circuits Figure 3-1 Input & Output Port Circuits Figure 3-2 In/Out Port Circuit 4 PIN CONFIGURATIONS Pin List of FT5x06 Table 4-1 Pin Definition of FT5x06 Pin No. Name FT5206GE1 FT5306DE4 FT5406EE8 Type Description VSSA 40 1 1 GND Analog ground NC 1 2 2 Not connected NC 48 3 Not connected TX28 4 O Transmit output pin TX27 5 O Transmit output pin TX26 6 O Transmit output pin TX25 7 O Transmit output pin TX24 8 O Transmit output pin TX23 9 O Transmit output pin TX22 10 O Transmit output pin TX21 11 O Transmit output pin TX20 3 12 O Transmit output pin TX19 4 13 O Transmit output pin TX18 5 14 O Transmit output pin TX17 6 15 O Transmit output pin TX16 7 16 O Transmit output pin TX15 2 8 17 O Transmit output pin TX14 3 9 18 O Transmit output pin TX13 4 10 19 O Tra