PCT1336QN | DigiCamel IC Datasheet

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PCT1336QN General Datasheet Cap-Touch Controller PixArt Imaging Inc. PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. Version 1.0 | 11 Apr 2016 | 81000AEN PCT1336QN: Cap-Touch Controller General Description PCT1336QN is a low-power, 5-touch Cap-Touch controller to provide a touch sensor system with high report rate, high accuracy, and low latency. The IC uses a mutual-capacitance measurement technology to sense capacitance ch anges and to detect multiple touch points simultaneously. Basing on mutual capacitance sensing technology, PCT1336QN is designed to meet the increasingly demanding needs for multi-touch performance application. All the touch detection, gesture interpretation and motion tracking are handled by the PCT1336QN. An Interrupt flag from the touch controller signals the host to read the touch reports. I2C and SPI are used for serial communication between the PCT1336QN and the host. A large set o f registers facilitates features and performance optimization. Additional user enhancements or adjustments complement the system performance objectives. Key Features  Low power consumption  Wide input power range  Flexible touch are size and shape  I2C/HID-I2C/SPI interface  Embed Flash  Excellent Water Immunity  Smart Auto-Calibration  Palm Rejection  Thick cover support, up to 2.0mm PC  Customize Gesture Support  Win10 PTP Compliance  Open-short test support

Applications

 Trackpad  Touch mouse  Touch keyboard  Remote Controller  Wearable Key Parameters Parameter Value Channel Number 24x12~20x16 Touch area 1”~6” Sensing Type Mutual Object Detection 5 Touches Supply Voltage 2.3~3.6V Power Consumption 3mA @ 100fps/touch 35uA @ Standby 8uA @ Suspend mode Sensitivity 4mm Stylus Report Rate Max 250Hz Latency < 10ms CPI 300~2000 Operation Temperature (Tj) -20 to +85 °C

Ordering Information

For any additional inquiries, please contact us at http://www.pixart.com/contact.asp

PixArt Imaging Inc. PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. PCT1336QN General Datasheet Cap-Touch Controller Version 1.0 | 11 Apr 2016 | 81000AEN Table of Contents

1.1 Overview

controller signals the host to read the touch reports. Figure 1. System Block Diagram

1.2 Operation Theory

match the touch screen active areas. avoidance automatically to get good SNR, so the report rate may be reduced automatically when the environment is noisy.

1.3 Package and Pin Definition

PCT1336QN is packaged in QFN48 6mmx6mm with pad pitch 0.5mm. Figure 2. QFN48 Package Pin Assignment Table 1. PCT1336QN QFN48 Pin Definition 1 SEN3 Sense line pin, could be connected to any Touch sensor row. 2 SEN4 Sense line pin, could be connected to any Touch sensor row. 3 SEN5 Sense line pin, could be connected to any Touch sensor row. 4 SEN6 Sense line pin, could be connected to any Touch sensor row. 5 SEN7 Sense line pin, could be connected to any Touch sensor row. 6 SEN8 Sense line pin, could be connected to any Touch sensor row. 7 SEN9 Sense line pin, could be connected to any Touch sensor row. 8 SEN10 Sense line pin, could be connected to any Touch sensor row. 9 SEN11 Sense line pin, could be connected to any Touch sensor row. 10 SEN12 Sense line pin, could be connected to any Touch sensor row. 11 SEN13 Sense line pin, could be connected to any Touch sensor row. 12 VDDA Analog power, 1uF capacitor to ground. 13 VDDD Digital power, 1uF capacitor to ground.

14 DRV12_SEN14

Mux pin: Can be set to Drive or Sense function. When used as Drive function, could be connected to any Touch sensor column. When used as Sense function, could be connected to any Touch sensor row.

15 DRV13_SEN15

When used as Drive function, could be connected to any Touch sensor column. When used as Sense function, could be connected to any Touch sensor row. 16 DRV14 Drive line pin, could be connected to any Touch sensor column.

PixArt Imaging Inc. PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. PCT1336QN General Datasheet Cap-Touch Controller Version 1.0 | 11 Apr 2016 | 81000AEN Pin Name Description 17 DRV15 Drive line pin, could be connected to any Touch sensor column. 18 DRV16 Drive line pin, could be connected to any Touch sensor column. 19 DRV17 Drive line pin, could be connected to any Touch sensor column. 20 DRV18 Drive line pin, could be connected to any Touch sensor column. 21 DRV19 Drive line pin, could be connected to any Touch sensor column. 22 DRV20 Drive line pin, could be connected to any Touch sensor column. 23 DRV21 Drive line pin, could be connected to any Touch sensor column. 24 DRV22 Drive line pin, could be connected to any Touch sensor column.

25 DRV23/BTN

Multi-function Pin. Default be used as Drive function, could be connected to any Touch sensor column. Could be used as GPIO to support external button. 26 VIN Main power input, 1uF capacitor to ground. 27 VDDIO Power for interface to Host, 0.1uF capacitor to ground.

28 RXD/RST

Multi-function Pin. At power on instant, this pin is used as interface activate function, it should be pull low to active I2C interface. Or pull high to activate SPI interface. After power on, this pin could be configured as HW reset function through register configuration. This pin could also be used as UART RX for PXI debugging.

29 TXD/BTN

Could be used as GPIO to support external button Also used for UART TX for PXI debugging. 30 IO_CLK SPI_CLK or I2C_SCL mux function pin, depend on IO_SEL/RX/RST power on instant level. When used as I2C_SCL, it is open drain IO and should be pull high (4.7k~10k) externally. 31 MISO_SDA SPI_MISO or I2C_SDA mux function pin, depend on IO_SEL/RX/RST power on instant level. When used as I2C_SDA, it is open drain IO and should be pull high (4.7k~10k) externally. 32 MOSI_A0 SPI_MOSI, or I2C slave ID pin. 33 NCS_A1 SPI_CS, or I2C slave ID pin. 34 INT Interrupt to Host to indicate data ready. 35 GND Ground pin.

36 DRV0/BTN

Multi-function Pin. Default be used as Drive function, could be connected to any Touch sensor column. Could be used as GPIO to support external button. 37 DRV1 Drive line pin, could be connected to any Touch sensor column. 38 DRV2 Drive line pin, could be connected to any Touch sensor column. 39 DRV3 Drive line pin, could be connected to any Touch sensor column. 40 DRV4 Drive line pin, could be connected to any Touch sensor column. 41 DRV5 Drive line pin, could be connected to any Touch sensor column. 42 DRV6 Drive line pin, could be connected to any Touch sensor column.

PixArt Imaging Inc. PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. PCT1336QN General Datasheet Cap-Touch Controller Version 1.0 | 11 Apr 2016 | 81000AEN Pin Name Description 43 DRV7 Drive line pin, could be connected to any Touch sensor column. 44 DRV8 Drive line pin, could be connected to any Touch sensor column. 45 DRV9 Drive line pin, could be connected to any Touch sensor column.

46 DRV10_SEN0

Mux pin: Can be set to Drive or Sense function. When used as Drive function, could be connected to any Touch sensor column. When used as Sense function, could be connected to any Touch sensor row.

47 DRV11_SEN1

Mux pin: Can be set to Drive or Sense function. When used as Drive function, could be connected to any Touch sensor column. When used as Sense function, could be connected to any Touch sensor row. 48 SEN2 Sense line pin, could be connected to any Touch sensor row.

2.1 Absolute Maximum Ratings

Table 2. Absolute Maximum Ratings

Maximum Ratings are those values beyond which damage to the device may occur.
Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability. Functional operati on

under absolute maximum-rated conditions is not implied.

Functional operation should be restricted to the Recommended Operating Conditions.

2.2 Recommended Operation Conditions

Table 3. Recommended Operating Conditions for Internal Regulator Mode Note: PixArt does not guarantee the performance if the operating temperature is beyond the specified limit.

2.3 DC Electrical Specifications

Table 4. Power Consumption *1: 35uA is the condition when rest2 is set to deep sleep mode. Table 5. I/O Interface Specifications

All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. PCT1336QN is packaged in QFN48 6mmx6mm with pad pitch 0.5mm. Figure 3. Package Mechanical Information

9 SEN11

Figure 4. Reference Schematic

5.1 Touch Data and Control Register

settings to increase the flexibility against different usages and performance requirement.  Reg0x00~Reg0x1F provide 5 touch data’s (ID, x, y) information: The touch data reported sequence always follows ID order. Reg0x02~Reg0x07. The new ID will be 2 and touch data reported in Reg0x08~Reg0x0D if a new, 3rd finger puts on.  Reg0x20~Reg0x5B extra touch information such as object size and touch force.  Reg0x5F~Reg0x6A provide physical button and gesture information. Table 6. Touch Data and Control Registers

PixArt Imaging Inc. PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. PCT1336QN General Datasheet Cap-Touch Controller Version 1.0 | 11 Apr 2016 | 81000AEN Addr Name Bit R/W 0x1A OBJ_4_valid [7:0] R 0x1B OBJ_4_ID [2:0] R 0x1C OBJ_4_X[7:0] [7:0] R 0x1D OBJ_4_X[15:8] [7:0] R 0x1E OBJ_4_Y[7:0] [7:0] R 0x1F OBJ_4_Y[15:8] [7:0] R 0x20 OBJ_0_SIZE[7:0] [7:0] R 0x21 OBJ_0_SIZE[15:8] [7:0] R 0x22 OBJ_0_SOI[7:0] [7:0] R 0x23 OBJ_0_SOI[15:8] [7:0] R 0x24 OBJ_0_WIDTH[7:0] [7:0] R 0x26 OBJ_0_HEIGHT[7:0] [7:0] R 0x2A OBJ_0_MAX_FORCE[7:0] [7:0] R 0x2B OBJ_0_MAX_FORCE[15:8] [7:0] R 0x2C OBJ_1_SIZE[7:0] [7:0] R 0x2D OBJ_1_SIZE[15:8] [7:0] R 0x2E OBJ_1_SOI[7:0] [7:0] R 0x2F OBJ_1_SOI[15:8] [7:0] R 0x30 OBJ_1_WIDTH[7:0] [7:0] R 0x32 OBJ_1_HEIGHT[7:0] [7:0] R 0x36 OBJ_1_MAX_FORCE[7:0] [7:0] R 0x37 OBJ_1_MAX_FORCE[15:8] [7:0] R 0x38 OBJ_2_SIZE[7:0] [7:0] R 0x39 OBJ_2_SIZE[15:8] [7:0] R 0x3A OBJ_2_SOI[7:0] [7:0] R 0x3B OBJ_2_SOI[15:8] [7:0] R 0x3C OBJ_2_WIDTH[7:0] [7:0] R 0x3E OBJ_2_HEIGHT[7:0] [7:0] R 0x42 OBJ_2_MAX_FORCE[7:0] [7:0] R 0x43 OBJ_2_MAX_FORCE[15:8] [7:0] R 0x44 OBJ_3_SIZE[7:0] [7:0] R 0x45 OBJ_3_SIZE[15:8] [7:0] R

PixArt Imaging Inc. PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. PCT1336QN General Datasheet Cap-Touch Controller Version 1.0 | 11 Apr 2016 | 81000AEN Addr Name Bit R/W 0x46 OBJ_3_SOI[7:0] [7:0] R 0x47 OBJ_3_SOI[15:8] [7:0] R 0x48 OBJ_3_WIDTH[7:0] [7:0] R 0x4A OBJ_3_HEIGHT[7:0] [7:0] R 0x4E OBJ_3_MAX_FORCE[7:0] [7:0] R 0x4F OBJ_3_MAX_FORCE[15:8] [7:0] R 0x50 OBJ_4_SIZE[7:0] [7:0] R 0x51 OBJ_4_SIZE[15:8] [7:0] R 0x52 OBJ_4_SOI[7:0] [7:0] R 0x53 OBJ_4_SOI[15:8] [7:0] R 0x54 OBJ_4_WIDTH[7:0] [7:0] R 0x56 OBJ_4_HEIGHT[7:0] [7:0] R 0x5A OBJ_4_MAX_FORCE[7:0] [7:0] R 0x5B OBJ_4_MAX_FORCE[15:8] [7:0] R 0x5F BUTTON_STAT [4:0] R 0x60 GESTURE_0_TYPE [4:0] R 0x62 GESTURE_0_X[7:0] [7:0] R 0x63 GESTURE_0_X[15:8] [7:0] R 0x64 GESTURE_0_Y[7:0] [7:0] R 0x65 GESTURE_0_Y[15:8] [7:0] R 0x68 GESTURE_1_TYPE [7:0] R 0x6A GESTURE_1_X[7:0] [7:0] R 0x70 BOOT_STAT[7:0] [7:0] R 0x71 STATUS[7:0] [7:0] R/W 0x73 USER_BANK[7:0] [7:0] R/W 0x74 USER_ADDR[7:0] [7:0] R/W 0x75 USER_DATA[7:0] [7:0] R/W 0x7A SHUTDOWN[7:0] [7:0] W 0x7B SW_RESET_EN [0] R/W 0x7C DEEP_SLEEP_STATUS [7:0] R/W

5.2 User Registers

Table 7 to access the user registers. Behavior/Drive-Sense mapping, etc.  Bank1 responses for noise avoidance and auto calibration relative parameters.

5.2.1 Bank0

Table 7. System Level User Registers

PixArt Imaging Inc. PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. PCT1336QN General Datasheet Cap-Touch Controller Version 1.0 | 11 Apr 2016 | 81000AEN Addr Name Bit R/W Initial Value 0x1c REST1_FRAME_RATE [7:0] R/W 0x14 0x1d REST2_FRAME_RATE [7:0] R/W 0x04 0x1f REST2_SLEEP_MODE [7:0] R/W 0x00 0x20 GPIO_IO_CTRL [4:0] R/W 0x1D 0x22 GPI_INTR_TRI_TYPE [4:0] R/W 0x03 0x23 GPI_WAKEUP_CTRL [4:0] R/W 0x00 0x24 GPI_PU_CTRL [4:0] R/W 0x1C 0x26 GPI_RESET_EN [4:0] R/W 0x00 0x27 INT_LEVEL_CTRL [4:0] R/W 0x00 0x28 BTN_DEBOUNCE_CNTS [3:0] R/W 0x05 0x29 UART_CTRL [2:0] R/W 0x03 0x30 COL0 [7:0] R/W - 0x31 COL1 [7:0] R/W - 0x32 COL2 [7:0] R/W - 0x33 COL3 [7:0] R/W - 0x34 COL4 [7:0] R/W - 0x35 COL5 [7:0] R/W - 0x36 COL6 [7:0] R/W - 0x37 COL7 [7:0] R/W - 0x38 COL8 [7:0] R/W - 0x39 COL9 [7:0] R/W - 0x3a COL10 [7:0] R/W - 0x3b COL11 [7:0] R/W - 0x3c COL12 [7:0] R/W - 0x3d COL13 [7:0] R/W - 0x3e COL14 [7:0] R/W 0x3f COL15 [7:0] R/W 0x40 COL16 [7:0] R/W 0x41 COL17 [7:0] R/W 0x42 COL18 [7:0] R/W 0x43 COL19 [7:0] R/W 0x44 COL20 [7:0] R/W 0x45 COL21 [7:0] R/W 0x46 COL22 [7:0] R/W 0x47 COL23 [7:0] R/W 0x48 ROW0 [7:0] R/W -

PixArt Imaging Inc. PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. PCT1336QN General Datasheet Cap-Touch Controller Version 1.0 | 11 Apr 2016 | 81000AEN Addr Name Bit R/W Initial Value 0x49 ROW1 [7:0] R/W - 0x4a ROW2 [7:0] R/W - 0x4b ROW3 [7:0] R/W - 0x4c ROW4 [7:0] R/W - 0x4d ROW5 [7:0] R/W - 0x4e ROW6 [7:0] R/W - 0x4f ROW7 [7:0] R/W - 0x50 ROW8 [7:0] R/W - 0x51 ROW9 [7:0] R/W - 0x52 ROW10 [7:0] R/W - 0x53 ROW11 [7:0] R/W - 0x54 ROW12 [7:0] R/W - 0x55 ROW13 [7:0] R/W - 0x56 ROW14 [7:0] R/W - 0x57 ROW15 [7:0] R/W - 0x58 DRV_SEN_SELECT [7:0] R/W 0x00 0x59 NF_ROW [7:0] R/W 0x08 0x5a NF_COL [7:0] R/W 0x0E 0x76 DRV_DR [1:0] R/W 0x02

5.2.2 Bank1

Table 8. Register Bank for Noise Avoidance and Auto Calibration

5.2.3 Bank2

Table 9. Register Bank for Absolute Touch Coordinate Performance Tuning

5.2.4 Bank3

Table 10. Register Bank for Gesture Performance Fine Tune

PixArt Imaging Inc. PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. PCT1336QN General Datasheet Cap-Touch Controller Version 1.0 | 11 Apr 2016 | 81000AEN Addr Name Bit R/W Initial Value 0x1a V_INERTIA_TM [7:0] R/W 0x0F 0x1b H_INERTIA_TM [7:0] R/W 0x0F 0x1c MIN_V_INERTIA_SPEED[7:0] [7:0] R/W 0x2C 0x1d MIN_V_INERTIA_SPEED[15:8] [7:0] R/W 0x01 0x1e MIN_H_INERTIA_SPEED[7:0] [7:0] R/W 0x2C 0x1f MIN_H_INERTIA_SPEED[15:8] [7:0] R/W 0x01 0x20 MAX_GAIN_V_SCROLL_SPEED[7:0] [7:0] R/W 0xDC 0x21 MAX_GAIN_V_SCROLL_SPEED[15:8] [7:0] R/W 0x05 0x22 MIN_GAIN_V_SCROLL_SPEED[7:0] [7:0] R/W 0x2C 0x23 MIN_GAIN_V_SCROLL_SPEED[15:8] [7:0] R/W 0x01 0x24 MAX_GAIN_V_SCROLL_BASE_2 [7:0] R/W 0x05 0x25 V_SCROLL_SPEED [7:0] R/W 0x14 0x26 V_SCROLL_WHEEL_RES [7:0] R/W 0x00 0x28 MAX_GAIN_H_SCROLL_SPEED[7:0] [7:0] R/W 0xDC 0x29 MAX_GAIN_H_SCROLL_SPEED[15:8] [7:0] R/W 0x05 0x2a MIN_GAIN_H_SCROLL_SPEED[7:0] [7:0] R/W 0x2C 0x2b MIN_GAIN_H_SCROLL_SPEED[15:8] [7:0] R/W 0x01 0x2c MAX_GAIN_H_SCROLL_BASE_2 [7:0] R/W 0x05 0x2d H_SCROLL_SPEED [7:0] R/W 0x14 0x2e H_SCROLL_WHEEL_RES [7:0] R/W 0x00 0x30 MAX_GAIN_ZOOM_SPEED[7:0] [7:0] R/W 0xDC 0x31 MAX_GAIN_ZOOM_SPEED[15:8] [7:0] R/W 0x05 0x32 MIN_GAIN_ZOOM_SPEED[7:0] [7:0] R/W 0x2C 0x33 MIN_GAIN_ZOOM_SPEED[15:8] [7:0] R/W 0x01 0x34 MAX_GAIN_ZOOM_BASE_2 [7:0] R/W 0x02 0x35 ZOOM_SPEED [7:0] R/W 0x28 0x36 ZOOM_WHEEL_RES [7:0] R/W 0x00 0x3d DRAG_WAIT_TM [7:0] R/W 0x0F 0x3e TAP_AND_DRAG_DIST [7:0] R/W 0x32 0x3f CURSOR_RLS_MAX_TM [7:0] R/W 0x32 0x40 BTN_RIGHT_X1[7:0] [7:0] R/W 0x00 0x41 BTN_RIGHT_X1[15:8] [7:0] R/W 0x00 0x42 BTN_RIGHT_Y1[7:0] [7:0] R/W 0x00

5.2.5 Bank4

Table 11. Register Bank for Palm Rejection

PixArt Imaging Inc. PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. PCT1336QN General Datasheet Cap-Touch Controller Version 1.0 | 11 Apr 2016 | 81000AEN Document Revision History Revision Date Notes 1.0 11 Apr 2016 1st creation based on DS V1.3

Product Information

PCT1336QN specifications and overview.

Summary

Cap-Touch Controller

Description

Cap-Touch Controller

Source title PCT1336QN Datasheet(PDF) - Pixart Imaging Inc.

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