Information

74 | Signal Chain Guide 2013 Texas Instruments
Monitoring and Control
Touch-Screen Controllers
Get more information: www.ti.com/product/TSC2011
Resistive Single Touch Screen Controller with Integrated Haptics Driver
TSC2011
TSC2011 functional block diagram
The TSC2011 is a very low power touch screen controller designed to work with a low
cost four-wire resistive touch sensor but also includes a comprehensive set of haptic
feedbacks to provide a complete human machine interface. Unlike other competing
solutions that rely on a simple, one way “trigger” mechanism, the haptic controller and
touch screen controller work side-by-side to ensure consistent haptic effect and touch
detection. This synchronized operation minimizes the skew between detection and
feedback, reducing system power consumption. Other advanced features include a
bandwidth saving preprocessing, integrated H-bridge to drive actuator and GPO pins
may be used for an IR proximity circuit. These make the TSC2011 a perfect device for
low cost consumer applications that can benefit from many new bidirectional human
machine interactions such as touch, gaming, and supplemental effects of ring tone.
Key Features
• Advancedfour-wiretouchscreen
interface
•
Preprocessingtoreducebusactivity
• Integratedhapticfeedbackcontrol
• High-speedI
2
C-compatible interface
• Register-basedprogrammable
• Lowpowerdesign
• EnhancedIECESDprotection
Applications
• Smartphones,MP3,PMPs,games
• Portableindustrial/medical
instruments, POS
DAV
SCL
SDA
PENIRQ
X –
X +
Y –
Y +
Touch Screen
Drivers
Interface
I
2
C S e rial
Interface
and C ontrol
P reprocessing
Internal
C lock
AUX /IRRX
(optional )
RESET
PINTDAV
Haptic
Controller
Parameters
Profiler
Enhanced ESD
H –/U –
H +/U +
Actuator
Touch Engine
With
Analog Signal
Processing
S ystem A rbitrator
Touch Screen
Controller
S ynthesizer
Status Register
TEMP
External H -
Bridge Driver
GPIO 1/D–/IRTX
GPIO 0/D+/IRPWN
AD 0
10 ~20kHz
PWM
Overcurrent
Protection
H -Bridge Driver
Non-Audio Touch-Screen Controllers
Device
Touch
Panel
Res.
(Bits) Interface Features ESD V
REF
Supply Voltage
(V)
Power
Consumption (mW)
HiRel
Avail. Package Price*
ADS7843 4-Wire 12 (8) Serial, SPI X, Y, AUX 2 KV Ext 2.7 to 5.25 1.8 N SSOP-16 1.70
ADS7845 5-Wire 12 (8) Serial, SPI X, Y, AUX 2 KV Ext 2.7 to 5.25 1.8 N SSOP-16 4.20
ADS7846 4-Wire 12 (8) Serial, SPI X, Y, Pressure, V
BAT
,
Temp, AUX
2 KV Int 2.7 to 5.25 1.8 N SSOP-16, QFN-16
TSSOP-16, BGA-48
2.05
TSC2003 4-Wire 12 (8) Serial, I
2
C X, Y, Pressure, V
BAT
, Temp,
AUX
2 KV A, 2
KV C
Int 2.7 to 5.25 1.8 N TSSOP-16 2.25
TSC2004 4-Wire 12 (10) Serial, I
2
C Processor, X, Y, Pressure,
Temp, AUX
18 KV A, 15
KV C
Ext Analog: 1.2 to 3.6,
V
I/O
: 1.2 to 3.6
0.075 (typ) Std 0.6,
(typ) Enhanced
N 2.5 x 2.5
WCSP-18, QFN-20
2.00
TSC2005 4-Wire 12 (10) Serial, SPI Processor, X, Y, Pressure,
Temp, AUX
18 KV A, 15
KV C
Ext Analog: 1.6 to 3.6,
V
I/O
: 1.2 to 3.6
0.075 (typ) Std 0.6,
(typ) Enhanced
N 2.5 x 3.0 WCSP-18 2.20
TSC2006 4-Wire 12 (10) Serial, SPI Processor, X, Y, Pressure,
Temp, AUX
18 KV A, 15
KV C
Ext Analog: 1.2 to 3.6,
V
I/O
: 1.2 to 3.6
0.075 (typ) Std 0.6,
(typ) Enhanced
N QFN-20 1.90
TSC2007 4-Wire 12 (8) Serial, I
2
C Processor, X, Y, Pressure,
Temp, AUX
25 KV A, 15
KV C
V
DD
1.2 to 3.6 0.04 (typ)
N
1.5 x 2.0 WCSP-12,
TSSOP-16
1.75
TSC2008 4-Wire 12 (8) Serial, SPI Processor, X, Y, Pressure,
Temp, AUX
25 KV A, 15
KV C
V
DD
1.2 to 3.6 0.04 (typ)
N
1.5 x 2.0 WCSP,
QFN-16
1.75
TSC2014 4-Wire 12 (10) Serial, I
2
C Processor, X, Y, Pressure,
Temp, AUX
18 KV A, 15
KV C
Ext Analog: 1.2 to 3.6,
V
I/O
: 1.2 to 3.6
0.075 (typ) Std 0.6,
(typ) Enhanced
N 2.5 x 2.5 WCSP-
18, QFN-20
2.00
TSC2046 4-Wire 12 (8) Serial, SPI X, Y, Pressure, V
BAT
,
Temp, AUX
2 KV A, 2
KV C
Int Analog: 2.2 to 5.25,
V
I/O
: 1.5 to 5.25
1.8 Y TSSOP-16, QFN-16,
BGA-48
1.95
TSC2046E 4-Wire 12 (8) Serial, SPI X, Y, Pressure, V
BAT
,
Temp, AUX
18 KV A, 15
KV C
Int Analog: 2.2 to 5.25,
V
I/O
: 1.5 to 5.25
0.7 N TSSOP-16, QFN-16,
BGA-48
2.20
TSC2017 4-Wire 12 Serial, I
2
C Processor, X, Y, Pressure,
Temp, AUX
25 KV A, 15
KV C
V
DD
1.6 to 3.6 37 µW N 1.6 mm x 1.6 mm
WCSP
1.95
*Suggested resale price in U.S. dollars in quantities of 1,000. See www.ti.com/hirel for HiRel options.