FT5336

FT5336GQQ
True Multi-Touch
Capacitive Touch Panel Controller
INTRODUCTION
The FT5336GQQ is single-chip capacitive touch panel controller ICs with a built-in enhanced Micro-controller unit (MCU).It adopts
the mutual capacitance and full screen common mode scan technology. Being coupled with a mutual capacitive touch panel, the
FT5336GQQ implements the user-friendly inputting function and be widely used in various portable devices, such as smart phones,
tablets, MIDs and GPS .
FEATURES
 2.8V to 3.3V Operating Voltage
 Mutual Capacitive Sensing Techniques
 Full Screen Common Mode Scan Techniques
 Capable of Driving Single Channel (transmit/receive) Resistance: Up to 30K Ω
 Supports up to 13 TX Lines + 24 RX Lines
 Supports up to 6.1" Touch Screen
 Capable of Supporting Single Channel (transmit/receive)
Capacitance: 60 pF
 High Report Rate: Up to 120Hz
 Fully Programmable Scan Sequences to Support Various
TX/RX Configurations
 Proximity modes detection:



 IOVCC Supports from 1.8V or VDD3
 Optimal Sensing Mutual Capacitor: 1pF~3pF
 12-Bit ADC Accuracy
 Built-in Enhanced MCU
Air Swipe
Glove Usage
Cheek check
 Built-in LDO for Digital Circuits
 3 Operating Modes
 Immune to RF Interferences
 True Multi-touch with up to 5 Points
 Touch Resolution of 100 Dots per Inch (dpi) or above -depending on the Panel Size



Active
Monitor
Hibernate
 Operating Temperature Range: -40°C to +85°C
 Auto-calibration
 Support Interfaces :I2C
FocalTech Systems Co., Ltd
·
www.focaltech-systems.com
Document Number: D-FT5336-1301-V0.6 (Version: 0.6)
·
[email protected]
Revised July. 18, 2013
F-OI-RD01-03-03-B
\\
TABLE OF CONTENTS
INTRODUCTION ............................................................................................................................................................I
FEATURES .......................................................................................................................................................................I
1
OVERVIEW ................................................................................................................................................................ 3
1.1
2
FUNCTIONAL DESCRIPTION ................................................................................................................................... 3
2.1
2.2
2.3
2.4
2.5
2.6
3
TYPICAL APPLICATIONS ......................................................................................................................................... 3
ARCHITECTURAL OVERVIEW .................................................................................................................................. 3
MCU .................................................................................................................................................................. 4
OPERATION MODES .............................................................................................................................................. 4
HOST INTERFACE .................................................................................................................................................. 4
SERIAL INTERFACE ............................................................................................................................................... 5
PROXIMITY MODES ............................................................................................................................................... 6
ELECTRICAL SPECIFICATIONS....................................................................................................................................... 7
3.1
3.2
3.3
3.4
3.5
ABSOLUTE MAXIMUM RATINGS .................................................................................................................................... 7
DC CHARACTERISTICS............................................................................................................................................... 7
AC CHARACTERISTICS ............................................................................................................................................... 7
I/O PORTS CIRCUITS ................................................................................................................................................ 8
POWER ON/RESET SEQUENCE .................................................................................................................................. 9
4
PIN CONFIGURATIONS ............................................................................................................................................... 10
5
PACKAGE INFORMATION ............................................................................................................................................ 12
5.1
5.2
PACKAGE INFORMATION OF QFN-5X5-48L PACKAGE ...................................................................................................... 12
ORDER INFORMATION.............................................................................................................................................. 13
HIS DOCUMENT CONTAINS INFORMATION PROPRIETARY TO FOCALTECH SYSTEMS CO.,LTD., AND MAY NOT BE
REPRODUCED, DISCLOSED OR USED IN WHOLE OR PART WITHOUT THE EXPRESS WRITTEN PERMISSION OF
FOCALTECH SYSTEMS CO.,LTD.
Copyright © 2013, FocalTech Systems CO., Ltd .
All rights reserved
Version 0.6︱Page 2 of 13
1
1.1
OVERVIEW
Typical Applications
FT5336GQQ accommodates a wide range of applications with a set of buttons up to a 2D touch sensing device; their typical applications are listed below.
 Mobile phones
 Tablets
 MIDs
 Navigation systems, GPS
 Game consoles
 POS (Point of Sales) devices
 Portable MP3 and MP4 media players
 Digital cameras
FT5336GQQ support ≤6.1” Touch Panel, the spec is listed in the following table,
Model Name
Panel
TX
RX
FT5336GQQ
13
Package
Pin
Type
24
QFN5*5
Touch Panel Size
Size
48
≤6.1"
0.6-P0.35
Typical Pitch
~5mm
Remarks: FocalTech suggests using pitch between 4.0mm to 6.0mm; The customer can decide the pitch based on applications.
2
2.1
FUNCTIONAL DESCRIPTION
Architectural Overview
Figure2-1 shows the overall architecture for the FT5336GQQ.
AFE
INTERFACE
TX
LPF
12bit
SAR
ADC
Port0
I2C
PORT
Controller
RX
Port1
High speed Digital processor
Flash
CGU
Enhanced MCU)
DSP
OCps
Data ram
ASM
EAC
POR
Power Regulator
48MHz low power
internal Oscillator
Figure 2-1 FT5336GQQ System Architecture Diagram
The FT5336GQQ is comprised of five main functional parts listed below,
 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. It includes both Transmit (TX) and Receive (RX) functions. Key parameters
to configure this circuit can be sent via serial interfaces.
 Enhanced MCU with DSP accelerator
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For the Enhanced MCU, larger program and data memories are supported. Furthermore, a Flash memory is implemented to store
programs and some key parameters.
Complex signal processing algorithms are implemented by MCU and DSP accelerator to detect the touches reliably and efficiently.
Communication protocol software is also implemented in this MCU to exchange data and control information with the host processor.
 External Interface
 I2C: an interface for data exchange with host
 INT: an interrupt signal to inform the host processor that touch data is ready for read
 RSTN: an external low signal reset the chip. The port is also use to wake up the FT5336GQQ from the Hibernate mode.
 A watch dog timer is implemented to ensure the robustness of the chip.
 A voltage regulator to generate 1.8V for digital circuits from the input VDD3 supply
 Power On Reset (POR) is active until VDDD is higher than some level and hold decades of μs.
2.2
MCU
This section describes some critical features and operations supported by the enhanced MCU.
Figure 2-2 shows the overall structure of the MCU block. In addition to the enhanced MCU core, we have added the following
circuits,
 A DSP accelerator cooperates with MCU to process the complex algorithms
 Timer: A number of timers are available to generate different clocks
 Clock Manager: To control various clocks under different operation conditions of the system
Program
Memory
Data
Memory
Clock
Manager
Enhanced
MCU Core
Master
Clock
Watch
dog
Timer
Figure 2-2 MCU Block Diagram
2.3
Operation Modes
FT5336GQQ operates in the following three modes:
 Active Mode
When in this mode, FT5336GQQ actively scans the panel. The default scan rate is 100 frames per second. The host processor can
configure FT5336GQQ to speed up or to slow down.
 Monitor Mode
In this mode, FT5336GQQ 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. In this mode, most algorithms are stopped. A simpler algorithm is being executed to determine if
there is a touch or not. When a touch is detected, FT5336GQQ shall enter the Active mode immediately to acquire the touch information quickly. During this mode, the serial port is closed and no data shall be transferred with the host processor.
 Hibernate Mode
In this mode, the chip is set in a power down mode. It shall only respond to the “RESET” 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 FT5336GQQ. This interface consists of the following three sets of
signals:
HIS DOCUMENT CONTAINS INFORMATION PROPRIETARY TO FOCALTECH SYSTEMS CO.,LTD., AND MAY NOT BE
REPRODUCED, DISCLOSED OR USED IN WHOLE OR PART WITHOUT THE EXPRESS WRITTEN PERMISSION OF
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 Serial Interface
 Interrupt from FT5336GQQ to the Host
 Reset Signal from the Host to FT5336GQQ
TP Module
Serial
Interface
TX
TP
FT5336GQQ
Host
RX
/INT
/RST
Figure 2-3 Host Interface Diagram
The serial interface of FT5336GQQ is I2C. The detail of the interface is described in detail in Section 2.5. The interrupt signal (/INT)
is used for FT5336GQQ to inform the host that data are ready for the host to receive. The /RST signal is used for the host to wake up
FT5336GQQ from the Hibernate mode. After resetting, FT5336GQQ shall enter the Active mode.
2.5
Serial Interface
FT5336GQQ supports the I2C interfaces, which can be used by a host processor or other devices.
The I2C is always configured in the Slave mode. The data transfer format is shown in Figure 2-4.
SDA
ACK from
slave
MSB
ACK from
receiver
SCL
START or
repeat START
1
2
7
3~6
8
9
ACK
1
2
3~7
8
9
ACK
Stop
Figure 2-4 I2C Serial Data Transfer Format
S
A[6:0]
D[7:0]
W A
Data[n+2]
Data[n+1]
Data[n]
SLV addr
A
D[7:0]
A
A P
D[7:0]
Figure 2-5 I2C master write, slave read
SLV addr
S
A[6:0]
Data[n]
R A
D[7:0]
Data[n+1]
A
D[7:0]
Data[n+2]
A
D[7:0]
N P
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
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Mnemonics
S
Description
I2C Start or I2C Restart
A[6:0]
Slave address
R/ W
READ/WRITE bit, ‘1’ for read, ‘0’for write
A(N)
ACK(NACK) bit
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
2.6
Min
Max
Unit
SCL frequency
10
400
KHz
Bus free time between a STOP and START condition
4.7
\
us
Hold time (repeated) START condition
4.0
\
us
Data setup time
250
\
ns
Setup time for a repeated START condition
4.7
\
us
Setup Time for STOP condition
4.0
\
us
Proximity Modes
FT5336GQQ support the following three proximity modes:
 Air Swipe
In this mode, FT5336GQQ could recognize the large object movement in two dimensions (x and Y axis). This can enable functions
like picture scrolling, page up and page down.
 Glove Usage
FT5336GQQ has increased sensitivity that allows the touch sensors to detect Finger through glove.
 Cheek Check
As soon as user’s cheek approaches to mobile phone screen, cheek proximity detection allows the host to turn off the mobile phone
screen.
HIS DOCUMENT CONTAINS INFORMATION PROPRIETARY TO FOCALTECH SYSTEMS CO.,LTD., AND MAY NOT BE
REPRODUCED, DISCLOSED OR USED IN WHOLE OR PART WITHOUT THE EXPRESS WRITTEN PERMISSION OF
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Version 0.6︱Page 6 of 13
3
ELECTRICAL SPECIFICATIONS
3.1
Absolute Maximum Ratings
Table 3-1 Absolute Maximum Ratings
Item
Symbol
Value
Unit
Note
Power Supply Voltage 1
VDDA - VSSA
-0.3 ~ +3.6
V
1, 2
Power Supply Voltage 2
VDD3 – VSS
-0.3 ~ +3.6
V
1, 3
I/O Digital Voltage
IOVCC
1.8~3.6
V
1
Operating Temperature
Topr
-40 ~ +85
℃
1
Storage Temperature
Tstg
-55 ~ +150
℃
1
Notes
1. If used beyond the absolute maximum ratings, FT5336GQQ 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)
3.2
DC Characteristics
Table 3-2 DC Characteristics (VDDA=VDD3=2.8~3.6V, Ta=-20~70°C)
Item
Symbol
Unit
Test Condition
Min.
Typ.
Max.
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
uA
Vin=0~VDDA
-1
--
1
Iopr
mA
--
7.00
--
Imon
mA
Current consumption
(Sleep mode)
Islp
uA
VDDA=VDD3 = 2.8V
Ta=25℃ MCLK=24MHz
Step-up output voltage
VDD5
V
VDDA=VDD3= 2.8V
Power Supply voltage
VDDA
VDD3
V
Current consumption
(Normal operation mode)
Current consumption
(Monitor mode)
VDDA=VDD3 = 2.8V
Ta=25℃ MCLK=24MHz
VDDA=VDD3 = 2.8V
Ta=25℃ MCLK=24MHz
--
2.75
Note
--
20
--
-0.25
2.8
--
3.6
Notes: This consumption data is intended for design guidance only. Actual current will depend on the particular sensor
design and firmware options.
3.3
AC Characteristics
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Table 3-3 AC Characteristics of TX & RX
Item
Symbol
Test Condition
Min
Typ
Max
Unit
TX acceptable clock
ftx
--
150
--
KHz
TX output rise time
Ttxr
--
140
--
nS
TX output fall time
Ttxf
--
140
--
nS
RX input voltage
Trxi
1.2
--
1.6
V
3.4
Note
I/O Ports Circuits
IOVCC
VDDA
VDDA
Input circuit
IOVCC
Output enable
Output data
Floating Sub
Figure 3-1 General Purpose In/Out Port Circuit.
The input/output property can be configured via firmware setting. The firmware can also control its output behavior as push-pull or
as open-drain that SDA of I2C interface is required.
VDDA
3K
300
Figure 3-2 Reset Input Port Circuits
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3.5
POWER ON/Reset Sequence
Reset should be pulled down to be low before powering on and powering down. I2C shouldn’t be used by other devices during Reset
time after VDD powering on (Trtp). INT signal will be sent to the host after initializing all parameters and then start to report points
to the host. If Power is down, the voltage of supply must be below 0.3V and Tpdt is more than 1ms.
Tris
Power
Figure 3-3 Power on time
Tpdt
Power
0.3V
Figure 3-4 Power Cycle requirement
Trtp
Tvdr
Tvdr
Tpon
VDD
Reset
INT
I2C
Figure 3-5 Power on Sequence
Reset time must be enough to guarantee reliable reset, the time of starting to report point after resetting approach to the time of
starting to report point after powering on.
Trsi
Trst
Power
RESET
INT
I2C
Figure 3-6 Reset Sequence
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Table 3-5 Power on/Reset Sequence Parameters
Parameter
4
Description
Min
Max
Units
Tris
Rise time from 0.1VDD to 0.9VDD
--
5
ms
Tpdt
Time of the voltage of supply being below 0.3V
5
--
ms
Trtp
Time of resetting to be low before powering on
100
--
μs
Tpon
Time of starting to report point after powering on
200
--
ms
Tvdr
Reset time after VDD powering on
1
--
ms
Trsi
Time of starting to report point after resetting
200
--
ms
Trst
Reset time
1
--
ms
PIN CONFIGURATIONS
Pin List of FT5336GQQ
Table 4-1 Pin Definition of FT5336GQQ
Name
Pin No.
Type
TX13
36
O
Transmit output pin
TX12
35
O
Transmit output pin
TX11
34
O
Transmit output pin
TX10
33
O
Transmit output pin
TX9
32
O
Transmit output pin
TX8
31
O
Transmit output pin
TX7
30
O
Transmit output pin
TX6
29
O
Transmit output pin
TX5
28
O
Transmit output pin
TX4
27
O
Transmit output pin
TX3
26
O
Transmit output pin
TX2
25
O
Transmit output pin
TX1
24
O
VDD5
23
PWR
Transmit output pin
internal generated 5V power supply, A 1μF ceramic
capacitor to ground is required.
VDDA
22
PWR
Analog power supply
VSSA
9
PWR
Analog ground
VSS
37
PWR
Analog ground
VDDD
38
PWR
VREF
8
PWR
RSTN
39
I
Description
Digital power supply (1.8V), generated internal. A 1
μF ceramic capacitor to ground is required.
internal generated reference power supply, A 1μF
ceramic capacitor to ground is required.
External Reset, Low is active
SCL
43
I/O
I2C clock input
SDA
42
I/O
I2C data input and output
GPIO
41
I/O
General Purpose Input/Output port
INT/
40
Wakeup
RX1
44
I/O
I
Interrupt request to the host, or Wakeup request from
the host.
Receiver input pins
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Version 0.6︱Page 10 of 13
5
I
Receiver input pins
RX11
6
I
Receiver input pins
RX12
7
I
Receiver input pins
RX13
10
I
Receiver input pins
RX14
11
I
Receiver input pins
RX15
12
I
Receiver input pins
RX16
13
I
Receiver input pins
RX17
14
I
Receiver input pins
RX18
15
I
Receiver input pins
RX19
16
I
Receiver input pins
RX20
17
I
Receiver input pins
RX21
18
I
Receiver input pins
RX22
19
I
Receiver input pins
RX23
20
I
Receiver input pins
RX24
21
I
Receiver input pins
35
37
TX13
TX12
RX10
36
Receiver input pins
VDDD
VSS
Receiver input pins
I
38
I
4
INT
3
RX9
RSTN
RX8
39
Receiver input pins
GPIO
Receiver input pins
I
40
I
2
41
1
RX7
SCL
RX6
SDA
Receiver input pins
42
I
43
48
RX2
RX5
RX1
Receiver input pins
44
Receiver input pins
I
RX3
I
47
45
46
RX4
46
RX3
RX5
Receiver input pins
RX4
I
47
45
48
RX2
RX6
1
34
RX7
2
33
TX10
RX8
3
32
TX9
TX8
TX11
RX9
4
31
RX10
5
30
TX7
RX11
6
29
TX6
FT5336GQQ
19
20
21
22
23
24
RX22
RX23
RX24
VDDA
VDD5
TX1
11
18
TX2
RX21
25
16
10
17
TX3
RX13
RX19
RX20
26
15
9
RX18
TX4
VSSA
14
TX5
27
RX17
28
8
12
13
7
RX14
RX15
RX16
RX12
VREF
FT5336GQQ Package Diagram
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Version 0.6︱Page 11 of 13
5
5.1
PACKAGE INFORMATION
Package Information of QFN-5x5-48L Package
Item
Symbol
A
Total Thickness
Stand Off
Mold Thickness
L/F Thickness
Lead Width
Lead Length
Package Edge Tolerance
Mold Flatness
A1
A2
A3
b
D
E
e
J
K
L
aaa
bbb
Co Planarity
Lead Offset
ccc
ddd
Exposed Pad Offset
eee
Body Size
Lead Pitch
EP Size
Min
0.5
Millimeter
Type
Max
0.55
0.6
0
----
0.05
0.425
0.035
0.4
0.152 REF
0.13
0.18
5 BSC
5 BSC
0.35 BSC
3.6
3.7
3.6
3.7
0.35
0.4
0.1
0.1
0.08
0.23
3.8
3.8
0.45
0.1
0.1
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Version 0.6︱Page 12 of 13
5.2
Order Information
QFN
Package Type
48Pin(5 * 5 )
0.6 - P0.35
Product Name
FT5336
Note:
1). The last three letters in the product name indicate the package type , lead pitch and thickness and numbers of TX and RX.
2). The third last letter indicates the package type .
G : QFN-5*5
3). The second last letter indicates the lead pitch and thickness.
M : 0.6 - P0.35
4). The last letter indicates the numbers of TX and RX.
J: 11TX-16RX
T: Track Code
F/R:”F” for Lead Free process,
F T 5336GQQ
TFYWWSV
”R” for Halogen Free process
Y: Year Code
WW: Week Code
S: Lot Code
V:IC Version
Product Name
Package Type
# TX Pins
# RX Pins
FT5336GQQ
QFN-48L
13
24
END OF DATASHEET
HIS DOCUMENT CONTAINS INFORMATION PROPRIETARY TO FOCALTECH SYSTEMS CO.,LTD., AND MAY NOT BE
REPRODUCED, DISCLOSED OR USED IN WHOLE OR PART WITHOUT THE EXPRESS WRITTEN PERMISSION OF
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Version 0.6︱Page 13 of 13