msg22S_pb_v01_great_power

Doc. No.: 2014080689

MSG22S Capacitive Touch Panel Controller

Preliminary Product Brief Version 0.1

Doc. No.: 2014080689

? 2014 MStar Semiconductor, Inc. All rights reserved.

MStar Semiconductor makes no representations or warranties including, for example but not limited to, warranties of merchantability, fitness for a particular purpose, infringement of any intellectual property right or the accuracy or completeness of this document, and reserves the right to make changes without further notice to any products herein to improve reliability, function or design. No responsibility is assumed by MStar Semiconductor arising out of the application or user of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others.

MStar is a trademark of MStar Semiconductor, Inc. Other trademarks or names herein are only for identification purposes only and owned by their respective owners.

Preliminary Product Brief Version 0.1 Doc. No.: 2014080689

REVISION HISTORY

Revision No. Description Date

0.1 ?Initial release 08/20/2014

FEATURES

n Capacitive Touch Screen Controller

?Supports up to 24 sensors

?Supports screen size up to 3.2”

?X, Y resolution up to 2048 pixels x 2048 pixels ?Programmable reporting rate: up to 120Hz

?Accurate single-touch coordinate report and two-touch gesture

?Automatic background capacitance tracking

?14-bit ADC

?Supports waterproof and wet-finger tracking ?Enhance immunity to RF interference and AC charger noise

?Supports proximity function

?Supports full lamination and on-cell structure ?Supports gesture wake up: double click/ handwritten wake up defined by user.

?Supports glove mode

-Material: downy & cotton

-Thickness: max. 1.8mm

?Single input power n Hardware

?32-bit MCU

?Flash memory & SRAM embedded

?I2C slave interface, up to 400Kb/s

?Built-in oscillator

?Build in 1.2V LDO for digital circuit

?Programmable INT level: 1.2V, 1.5V, 1.8V,and VDD

n Operation Voltage

? 2.8V ~ 3.3V

?All sensor pins pass HBM/8KV, MM/800V

n Misc.

?UQFN-32 package

GENERAL DESCRIPTION

The MSG22S is a capacitive touch screen controller. The internal ADC & DSP circuitry implement high-accuracy self-capacitance measurement. A 32-bit MCU with embedded flash provides programmability to suffice different requirements of various touch screen designs.

BLOCK DIAGRAM Doc. No.: 2014080689

PIN DIAGRAM (MSG22S)

Pin 1

8

765432

1

19

1817

24

23222120SCL CHIP_EN

VDD PVDD_CP SDA INT VDD_12CAP_SENSE09CAP_SENSE08CAP_SENSE07

CAP_SENSE14CAP_SENSE13CAP_SENSE12CAP_SENSE11CAP_SENSE10PVDD_CPA

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PIN DESCRIPTION

Capacitive Touch Sensor Interface

Pin Name Pin Type Function Pin CAP_SENSE00 Analog Input Capacitive touch sensor input 10 CAP_SENSE01 Analog Input Capacitive touch sensor input 11 CAP_SENSE02 Analog Input Capacitive touch sensor input 12 CAP_SENSE03 Analog Input Capacitive touch sensor input 13 CAP_SENSE04 Analog Input Capacitive touch sensor input 14 CAP_SENSE05 Analog Input Capacitive touch sensor input 15 CAP_SENSE06 Analog Input Capacitive touch sensor input 16 CAP_SENSE07 Analog Input Capacitive touch sensor input 17 CAP_SENSE08 Analog Input Capacitive touch sensor input 18 CAP_SENSE09 Analog Input Capacitive touch sensor input 19 CAP_SENSE10 Analog Input Capacitive touch sensor input 20 CAP_SENSE11 Analog Input Capacitive touch sensor input 21 CAP_SENSE12 Analog Input Capacitive touch sensor input 22 CAP_SENSE13 Analog Input Capacitive touch sensor input 23 CAP_SENSE14 Analog Input Capacitive touch sensor input 24 CAP_SENSE15 Analog Input Capacitive touch sensor input 25 CAP_SENSE16 Analog Input Capacitive touch sensor input 26 CAP_SENSE17 Analog Input Capacitive touch sensor input 27 CAP_SENSE18 Analog Input Capacitive touch sensor input 28 CAP_SENSE19 Analog Input Capacitive touch sensor input 29 CAP_SENSE20 Analog Input Capacitive touch sensor input 30 CAP_SENSE21 Analog Input Capacitive touch sensor input 31 GR1 Analog Input /Output Capacitive touch sensor input /Guard ring driver output 9

GR2/ EXT_CLK Analog Input/Output /

Digital input

Capacitive touch sensor input /Guard ring driver output

External Sync Clock Input

32

Host Interface

Pin Name Pin Type Function Pin CHIP_EN Input w/ 5V-tolerant Chip Enable 5 SDA I/O w/ 5V-tolerant I2C Serial Data Input/Output 1 SCL I/O w/ 5V-tolerant I2C Serial Clock Input/Output 2 INT I/O w/ 5V-tolerant Interrupt signal 3 Doc. No.: 2014080689

Doc. No.: 2014080689

Power Pins

Pin Name Pin Type Function Pin

6 VDD 2.8V Power 2.8V~3.3V power supply; connect 1uF X5R ceramic

capacitor to Ground

4 VDD_12 1.2V Power Internally generated digital power supply; connect 1uF X5R

ceramic capacitor to Ground

PVDD_CP High Voltage Power Internally Generated High Voltage Power Supply, Connect

7

1uF X5R ceramic capacitor to Ground.

PVDD_CPA High Voltage Power Short to PVDD_CP8 Note: E-pad should be connected to system GND net.

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ELECTRICAL SPECIFICATIONS

Parameter Min Typ Max Unit DIGITAL INPUTS

Input Voltage 1, High (V IH1)1 1 V Input Voltage 2, High (V IH2)2V PVDD_CPA - 0.4 V Input Voltage, Low (V IL) 0.5 V DIGITAL OUTPUTS

See Note3 V Output Voltage, High (V OH1)3

Output Voltage, High (V OH2)4V VDD - 0.1

Output Voltage, Low (V OL) 0.1 V Specifications are subjected to change without notice.

Notes:

1.V IH1 includes pins CHIP_EN, SDA, SCL, INT.

2.V IH2 refers to pin EXT_CLK.

3.V OH1 is for INT output voltage level which is programmable by registers. Typical values are 1.2V/1.5V/1.8V/V VDD.

4.V OH2 refers to other digital pins.

Recommended Operating Conditions

Parameter Symbol Min Typ Max Unit Power Supply V VDD 2.8 3.3 V Ambient Operating Temperature T A-20 85 °C Junction Temperature T J125 °C Absolute Maximum Ratings

Parameter Symbol Min Typ Max Unit Power Supply V VDD 3.6 V Analog Input Voltage V INANA V VDD V Digital Input Voltage1T INDIG 5 V Storage Temperature T STG-40 125 °C Notes:

1.Except for the pin EXT_CLK, the maximum voltage for other digital pins is 5V as the table listed.

2.Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. This is a stress

rating only and does not imply functional operation of the device. Exposure to absolute maximum ratings for extended periods may affect device reliability.

ORDERING GUIDE

Part Number Temperature

Range Package

Description

Package

Option

MSG22S -20°C to +85°C UQFN

32

MARKING INFORMATION

MSG22S

Operation Code B

Date Code (YYWW)

Lot Number

Operation Code A

Part Number

DISCLAIMER

MSTAR SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. NO RESPONSIBILITY IS ASSUMED BY MSTAR SEMICONDUCTOR ARISING OUT OF THE APPLICATION OR USER OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

Electrostatic charges accumulate on both test equipment and human body and can discharge without

detection. MSG22S comes with ESD protection circuitry; however, the device may be permanently

damaged when subjected to high energy discharges. The device should be handled with proper ESD

precautions to prevent malfunction and performance degradation.

Doc. No.: 2014080689

MECHANICAL DIMENSIONS

A

b e

E2

1

D

E

1

32

D2

8

9

16

17

24

2532

Symbol

Millimeter Inch

Min. Nom. Max. Min. Nom. Max.

A 0.55 0.6 0.65 0.022 0.024 0.026

D 3.9 4 4.1 0.154 0.157 0.161

E 3.9 4 4.1 0.154 0.157 0.161

D2 2.54 - 2.8 0.100 - 0.110

E2 2.54 - 2.8 0.100 - 0.110

b 0.15 0.2 0.25 0.006 0.008 0.010

e 0.35 0.4 0.45 0.014 0.016 0.018

Doc. No.: 2014080689