MTCH6303 Multi-Touch Projected Capacitive Touch Controller

MTCH6303
Multi-Touch Projected Capacitive Touch Controller Product Brief
Description
Microchip’s MTCH6303 is an innovative turnkey projected capacitive touch controller that provides multi-touch coordinates
as well as a readymade multi-finger surface gesture suite. MTCH6303 brings modern user interface (UI) elements – such as
pinch and zoom, multi-finger scrolling, and swipes – to any embedded design, with minimal host requirements.
The MTCH6303’s advanced signal processing provides noise-avoidance techniques and predictive tracking for ten
fingers, typically at 100 Hz each for five touches. It also combines with Microchip’s MTCH652 High-voltage Line Driver
to achieve a superior signal-to-noise ratio (SNR) for outstanding touch performance in noisy environments (refer to
www.microchip.com/MTCH652). These capabilities are critical in demanding environments such as industrial controls,
home and office automation with security control panels, thermostat, printers and lighting controls, and various
consumer applications including exercise equipment and audio systems.
Features
Power Management
• Multi-Touch up to Ten Touches
• Five Touches Typically at 100 Hz+ Each
• 27RX x 19TX Channels Support Approximately 8"
Touch Screens (larger possible)
• Combines with MTCH652 High-Voltage Driver for
Superior Signal-to-Noise Ratio (SNR)
• Integrated Single and Multi-finger Gesture
Recognition Suite including Taps, Swipes,
Scrolling, Pinching and Zooming
• Advanced Processing Provides Noise Avoidance
Techniques
• USB and I2C Communication
• Supports 3D Gestures up to 20 cm when
Combined with the MGC3130 GestIC® Controller
Example:
TABLE 1:
• 27RX 19TX Sensor
- 27 mA full-scan rate
- 1 mA reduced-scan rate
Applications
• Touch screen designs and touch pads that require
cost effective, easy to integrate, fast time to
market PCAP touch solutions
• Perfect for touch screens over displays, control
panels, keypads and many other input devices
• Targeting the industrial, medical, home and office
automation, and consumer markets
MTCH6303 SOLUTION PART NUMBERS
Device
Pin Count
MTCH6303-I/PT
MTCH6303-I/RG
64
*MTCH652-I/SO
*MTCH652-I/SS
Package Types
10 x10 mm TQFP
9 x 9 mm QFN
Touch Channels
Features
Up to 27 RX
Multi-touch, up to 8” sensors
Up to 19 TX
1.8 – 5.5V input, 6V – 18V
configurable output
7.5 mm SOIC
28
*MTCH652-I/MV
5.3 mm SSOP
4 x 4 mm UQFN
Note:
*One MTCH652 high-voltage driver (boost) is required with MTCH6303.
Note:
The MTCH6303 devices are pre-programmed with a Library Loader (bootloader) only. Refer to
Section 8.0, Firmware update for more details.
 2015 Microchip Technology Inc.
Advance Information
DS40001797A-page 1
MTCH6303
FIGURE 1:
MTCH6303 BLOCK DIAGRAM
MTCH652
MTCH652
(Boost)
19
(SPI)
Prediction
Module
TX Drive Control
Acquisition
Module
Touch
Sensor
27
RX Electrode
Measurement
Touch Tracking/
Decoding
I²C™
I2C™ Engine
Noise Detection
& Management
Communications
& Diagnostics
USB
USB Stack
Sensor Configuration/Calibration
PIN DIAGRAM
MTCH6303 64-PIN DIAGRAM TQFP/QFN
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
IN24
IRQ
IN23
NC
NC
NC
NC
VDD
VCAP
NC
BOOSTLE1
NC
BOOSTOE1
IN22
BOOSTCLK
IN21
FIGURE 2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
MTCH6303
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
COMM_SEL
DNC
NC
BOOSTPWM
BOOSTDO
NC
NC
NC
VSS
OSC2
OSC1
VDD
D+
DVUSB3V3
VBUS
NC
IN11
IN12
AVDD
AVSS
IN13
IN14
IN15
IN16
VSS
VDD
IN17
IN18
IN19
IN20
SDA
SCL
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
IN0
IN1
IN2
IN3
IN4
IN5
RESET
IN6
VSS
VDD
IN7
IN8
IN9
IN10
IN25
IN26
DS40001797A-page 2
Advance Information
 2015 Microchip Technology Inc.
MTCH6303
PIN ALLOCATION TABLE
TABLE 2:
Name
MTCH6303 PIN ALLOCATION TABLE
Pin
Description
IN0
1
IN1
2
IN2
3
IN3
4
IN4
5
IN5
6
RESET
7
Reset
IN6
8
IN 6
VSS
9
Ground
VDD
10 Power Supply Input
IN 0 – 5
IN7
11
IN8
12
IN9
13
IN10
14
IN25
15
IN26
16
IN11
17
IN12
18
AVDD
19 Positive supply for analog modules. This pin must be connected at all times.
AVSS
20 Ground reference for analog modules
IN13
21
IN14
22
IN15
23
IN16
24
VSS
25 Ground
VDD
26 Power Supply Input
IN17
27
IN18
28
IN19
29
IN20
30
SDA
31 I2C Data
SCL
32 I2C Clock
IN 7 – 10
IN 25 – 26
IN 11 – 12
IN 13 – 16
IN 17 – 20
33
42
43
44
47
DNC
53
Do not connect any signal to these pins.
55
58
59
60
61
 2015 Microchip Technology Inc.
Advance Information
DS40001797A-page 3
MTCH6303
TABLE 2:
MTCH6303 PIN ALLOCATION TABLE (CONTINUED)
VBUS
34 USB Bus Power Monitor
VUSB3V3
35 USB internal transceiver supply. If the USB module is not used, this pin must be connected to
VDD.
D-
36 USB D-
D+
37 USB D+
VDD
38 Power Supply Input
OSC1
39 Oscillator Pin 1
OSC2
40 Oscillator Pin 2
VSS
41 Ground
BOOSTDO
45 MTCH652 DO output/DIN Input
BOOSTPWM
46 MTCH652 PWM Out/OSCIN input
COMM_SEL
48 Communication Select Pin (VDD = I2C, VSS = USB)
IN21
49 IN 21
BOOSTCLK
50 MTCH652 CLK Output
IN22
51 IN 22
BOOSTOE1
52 MTCH652 OE Output 1
BOOSTLE1
54 MTCH652 LE Output 1
VCAP
56 Capacitor for Internal Voltage Regulator
VDD
57 Power Supply Input
IN23
62 IN 23
IRQ
63 I2C Interrupt
IN24
64 IN 24
MGC_TS
42 Gesture Transfer Status
MGC_SDA
43 Gesture I2C Data
MGC_SCL
44 Gesture I2C Clock
MGC_MCLR
61 Gesture Reset
MGC_MODE
60 Gesture Mode Control
MGC_SYNC
47 Gesture Sync
DS40001797A-page 4
Advance Information
 2015 Microchip Technology Inc.
MTCH6303
PIN DESCRIPTIONS
BOOSTDO
RESET
• MTCH6303 DO serial data output, connect to
MTCH652 DIN Input.
• Pulling the RESET pin low generates a device
Reset.
BOOSTPWM
• MTCH652 OSCIN input signal for boost
AVDD
• Positive supply for analog modules. This pin must
be connected at all times.
BOOSTOE1
• Ground reference for analog modules. This pin
must be connected at all times.
• MTCH652 OE Outputs
When OE is set to logic ‘0’, all MTCH652 output
latches (OUTxx) are GND. When OE is set to logic ‘1’,
all output latches that are set to drive ‘1’ will output the
boost voltage level.
SDA/SCL/IRQ
BOOSTLE1
AVSS
•
•
•
• MTCH652 LE Outputs
Latch Enable Input (LE) is the active-low latch input
used for latching-in serial data. Serial data is ignored
unless LE is logic ‘0’. After clocking serial data, the
data is internally latched when LE changes from logic
‘0’ to logic ‘1’.
I2C Data
I2C Clock
I2C Interrupt
D+/D• USB D+ and D-
COMM_SEL
• Communication selection pin
• VDD: I2C
• GND: USB
VUSB3V3
• USB internal transceiver supply
If the USB module is not used, this pin must be
connected to VDD
OSC1/OSC2
• Clock signal input
VCAP
• A low-ESR capacitor is required on the VCAP pin,
which is used to stabilize the internal voltage
regulator output. The VCAP pin must not be
connected to VDD and must have a CEFC
capacitor, with at least a 6V rating, connected to
ground.
IN0-IN26
• RX sensor lines connect to the MTCH6303 IN
pins. RX sensor lines must correspond to the
longer axis of the touch sensor. TX sensor lines
are connected to the required MTCH652. Refer to
Typical Application Circuit for more details.
 2015 Microchip Technology Inc.
Advance Information
DS40001797A-page 5
MTCH6303
TYPICAL APPLICATION CIRCUIT
FIGURE 3:
MTCH6303 AND MTCH652 APPLICATION CIRCUIT
Diag 2
Diag 1
VDD
Tantalum or ceramic
10 μF ESR ≤ 3Ω
GND
1 μF 25V
VDD
GND
28
27
26
25
24
23
22
OUT6
OUT7
VPP
VDD
VSS
OUT8
OUT9
OUT5
OUT4
LC
OUT3
OUT2
OUT1
OUT0
GND GND
21
20
19
18
17
16
15
8
9
10
11
12
13
14
GND
MTCH652
OUT10
OUT11
OUT12
OUT13
OUT14
OUT15
OUT16
OUT18
OUT17
OSCIN
OE
LE
DIN
CLK
1 μF
VDD
IN11
IN12
AVDD
AVSS
IN13
IN14
IN15
IN16
VSS
VDD
IN17
IN18
IN19
IN20
SDA
SCL
GND
MTCH6303
1
2
3
4
5
6
7
2.2 μH
8 MHz
GND
GND
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
GND
150k
18 pF
10k
COMM_SEL 48
47
BOOSTPWM 46
BOOSTDO 45
44
43
MGC_TS 42
VSS 41
OSC2 40
OSC1 39
VDD 38
D+ 37
D- 36
VUSB3V3 35
VBUS 34
33
0.1 μF
VDD VDD
IN0
IN1
IN2
IN3
IN4
IN5
RESET
IN6
VSS
VDD
IN7
IN8
IN9
IN10
IN25
IN26
VDD
*See Comm
Select Note3
18 pF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IN24 64
IRQ 63
IN23 62
61
60
59
58
VDD 57
VCAP 56
55
BOOSTLE1 54
53
BOOSTOE1 52
IN22 51
BOOSTCLK 50
IN21 49
GND
3
RX Channels
Comm Select Note
D+
DVBUS
VDD
VDD
1
VDD
VDD
1
1k
To USB Host2
2
GND
GND
Resistors (discrete or networks) placed on all RX
lines as close to the MTCH6303 as possible
ESD Protection per
User Requirements
4.7k
1.8k
IRQ
SCL
SDA
I²C™
Configuration
COMM_SEL
COMM_SEL
USB
Configuration
To I2C™ Host
GND
VDD
5x 0.1 μF
SENSOR
GND
TX Channels
DS40001797A-page 6
Advance Information
 2015 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
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•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
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Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
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Information contained in this publication regarding device
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LANCheck, MediaLB, MOST, MOST logo, MPLAB,
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The Embedded Control Solutions Company and mTouch are
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Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo,
CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit
Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet,
KleerNet logo, MiWi, motorBench, MPASM, MPF, MPLAB
Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach,
Omniscient Code Generation, PICDEM, PICDEM.net, PICkit,
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Total Endurance, TSHARC, USBCheck, VariSense,
ViewSpan, WiperLock, Wireless DNA, and ZENA are
trademarks of Microchip Technology Incorporated in the
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SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology
Germany II GmbH & Co. KG, a subsidiary of Microchip
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All other trademarks mentioned herein are property of their
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© 2015, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
ISBN: 978-1-63277-948-9
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Advance Information
DS40001797A-page 7
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DS40001797A-page 8
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