MTCH6303 Multi-Touch Projected Capacitive Touch Controller Product Brief

MTCH6303
Multi-Touch Projected Capacitive Touch Controller Product Brief
Description
MTCH6303 is an innovative turnkey projected capacitive touch controller that allows easy integration of multi-touch and
gestures to create a rich user interface in your design.
The MTCH6303 provides advanced features including noise robustness, larger sensor size support up to 8", faster
scanning speeds, and combines with the MTCH652 high-voltage driver to achieve a superior signal-to-noise ratio
(SNR). The MTCH6303 reduces time to market by providing designers with a ready-made gesture recognition suite of
multi-finger gestures including taps, slides and edge flicks for selecting, scrolling, pinching and zooming with ease.
Advanced new decoding algorithms automatically enable intelligent touch prediction for a smooth user experience.
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
Applications
• Multi-touch up to ten touches
• Five touches at a minimum of 100 Hz+ each
• 27RX x 19TX channels support for up to
approximately 8" touch screens
• Combines with MTCH652 high-voltage driver for
advanced signal-to-noise ratio (SNR)
• Integrated single and multi-finger gesture
recognition suite including taps, slides, edge and
pinching and zooming
• Advanced DSP algorithms assess signal
acquisition frequencies to avoid noise and
achieve the cleanest measurements
• USB and I2C™ communication
• Supports 3D gestures together with the MGC3130
GestIC® controller
• Up to 8" touch screen designs that require costeffective, 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
TABLE 1:
MTCH6303 SOLUTION PART NUMBERS
Device
Pin Count
MTCH6303-I/PT
MTCH6303-I/RG
64
*MTCH652-I/SO
*MTCH652-I/SS
10 x10 mm TQFP
9 x 9 mm QFN
Touch Channels
27 RX, 19 TX
Features
Multi-touch, up to 8" sensors
7.5 mm SOIC
28
*MTCH652-I/MV
Note:
Package Types
5.3 mm SSOP
Up to 19 TX
1.8-5.5V input, 6V-18V
configurable output
4 x 4 mm UQFN
*One MTCH652 high-voltage driver (boost) is required with MTCH6303.
 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
Touch
Sensor
Acquisition
Module
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
RX24
IRQ
RX23
NC
NC
NC
NC
VDD
VCAP
BOOSTLE2
BOOSTLE1
BOOSTOE2
BOOSTOE1
RX22
BOOSTSCK
RX21
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
NC
BOOSTPWM
BOOSTDO
NC
NC
NC
VSS
OSC2
OSC1
VDD
D+
DVUSB3V3
VBUS
NC
RX11
RX12
AVDD
AVSS
RX13
RX14
RX15
RX16
VSS
VDD
RX17
RX18
RX19
RX20
SDA
SCL
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
RX0
RX1
RX2
RX3
RX4
RX5
RESET
RX6
VSS
VDD
RX7
RX8
RX9
RX10
RX25
RX26
DS40001797A-page 2
Advance Information
 2015 Microchip Technology Inc.
MTCH6303
PIN ALLOCATION TABLE
TABLE 2:
Name
MTCH6303 PIN ALLOCATION TABLE
Pin Description
RX0
1
RX1
2
RX2
3
RX3
4
RX4
5
RX5
6
RESET
7
Reset
RX6
8
Rx 6
Vss
9
Ground
VDD
10 Power Supply Input
RX7
11
RX8
12
Rx 0-5
RX9
13
RX10
14
RX25
15
RX26
16
RX11
17
RX12
18
AVDD
19 Positive supply for analog modules. This pin must be connected at all times.
AVSS
20 Ground reference for analog modules
RX13
21
RX14
22
RX15
23
RX16
24
VSS
25 Ground
VDD
26 Power Supply Input
RX17
27
RX18
28
RX19
29
RX20
30
SDA
31 I2C™ Data
SCL
32 I2C™ Clock
NC
33 Not Connected
VBUS
34 USB Bus Power Monitor
Rx 7-12, Rx 25-26
Rx 13-16
Rx 17-20
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
 2015 Microchip Technology Inc.
Advance Information
DS40001797A-page 3
MTCH6303
TABLE 2:
MTCH6303 PIN ALLOCATION TABLE (CONTINUED)
Name
Pin Description
VSS
41 Ground
NC
42
NC
43 Not Connected
NC
44
BOOSTDO
45 MTCH652 DO output/DIN Input
BOOSTPWM
46 MTCH652 PWM Out/OSCIN input
NC
47 Not connected
COMM_SEL
48 —
RX21
49 Rx 21
BOOSTSCK
50 MTCH652 CLK Output
RX22
51 Rx 22
BOOSTOE1
52 MTCH652 OE Output 1
BOOSTOE2
53 MTCH652 OE Output 2
BOOSTLE1
54 MTCH652 LE Output 1
BOOSTLE2
55 MTCH652 LE Output 2
VCAP
56 Capacitor for Internal Voltage Regulator
VDD
57 Power Supply Input
NC
58
NC
59
NC
60
NC
61
Not connected
RX23
62 Rx 23
IRQ
63 I2C™ Interrupt
RX24
64 Rx 24
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.
AVSS
• Ground reference for analog modules. This pin
must be connected at all times.
SDA/SCL/IRQ
•
•
•
BOOSTOE1/BOOSTOE2
• 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. The MTCH6303 supports up to
two MTCH652 devices for larger size screen support.
BOOSTLE1/ BOOSTLE2
I2C™ Data
I2C Clock
I2C Interrupt
• 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’. The MTCH6303 supports up to two
MTCH652 devices for larger size screen support.
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.
RX0-RX26
• 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
Tantalum or ceramic
10ʅF ESR ч3ɏ
V——
GND
1ʅF
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
1ʅF
VDD
RX11
RX12
AV——
AVSS
RX13
RX14
RX15
RX16
VÝÝ
V——
RX17
RX18
RX19
RX20
SDA
SCL
GND
MTCH6303
1
2
3
4
5
6
7
2.2ʅH
8MHz
GND
GND
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
GND
150k
18pF
10k
COMM_SEL 48
47
BOOSTPWM 46
BOOSTDO 45
44
43
42
VÝÝ 41
OSC2 40
OSC1 39
V—— 38
D+ 37
D- 36
VUSB3V3 35
VçÝ 34
33
0.1ʅF
V—— V——
RX0
RX1
RX2
RX3
RX4
RX5
RESET
RX6
VÝÝ
V——
RX7
RX8
RX9
RX10
RX25
RX26
VDD
*See Comm
Select Note3
18pF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
RX24 64
IRQ 63
RX23 62
61
60
59
58
V—— 57
V‘ƒÖ 56
BOOSTLE2 55
BOOSTLE1 54
BOOSTOE2 53
BOOSTOE1 52
RX22 51
BOOSTCLK 50
RX21 49
GND
3
RX Channels
Comm Select Note
D+
DVDD
V——
1k1
1
To USB Host2
VBUS
V——
2
GND
GND
Resistors (discrete or networks) placed on all RX
lines as close to the MTCH6303 as possible
I2C™
ConĮguraƟon
V——
ESD ProtecƟon per
User Requirements
4.7k
1.8k
IRQ
SCL
SDA
COMM_SEL
COMM_SEL
USB
ConĮguraƟon
To I2C Host
GND
PIC ® Decoupling Caps - P10,26,38,57,19
V——
5x 0.1ʅF
Sensor
GND
TX Channels
DS40001797A-page 6
Advance Information
 2015 Microchip Technology Inc.
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Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
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Advance Information
DS40001797A-page 7
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DS40001797A-page 8
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 2015 Microchip Technology Inc.