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TSC2011

更新时间： 2024-01-02 09:31:51
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德州仪器 - TI 控制器
页数 文件大小 规格书
8页 268K
描述
Nanopower, 4-Wire Resistive Touch and Haptic Controller with I2C™ Serial Interface

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TSC2011  
www.ti.com  
SBAS516 –NOVEMBER 2011  
Nanopower, 4-Wire Resistive Touch and Haptic Controller with I2C™ Serial Interface  
Check for Samples: TSC2011  
1
FEATURES  
•
4-mm×4-mm QFN-20 and 2.5-mm×2.5-mm  
WCSP-25 (Preview) Packages  
2
•
Advanced 4-Wire Touch Screen Interface  
Preprocessing to Reduce Bus Activity  
Integrated Haptic Feedback Control  
U.S. Patent No. 6,246,394; 7,812,830; 7,965,280; 7,999,793  
•
•
APPLICATIONS  
–
On Chip H-Bridge: 250mA with Over  
Current Status  
•
•
Smart Phones, MP3, PMPs, Games  
Portable Industrial/Medical Instruments, POS  
–
On Chip PWM: 20KHz to 160KHz, 0% to  
100%  
DESCRIPTION  
The TSC2011 is a very low power Touch Screen  
Controller designed to work with a low cost 4-wire  
resistive touch sensor but also includes  
–
–
On Chip Synthesizer (10Hz~20KHz Sine)  
Wave Amplitude Modulation: 255 Levels  
•
•
High-Speed I2C-Compatible Interface  
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.  
Register-Based Programmable  
–
–
–
–
10-Bit or 12-Bit ADC Resolution  
Sampling Rates  
On Chip Command Profiler  
GPO Pins for External Drive or IR TX  
•
Low Power Design:  
–
–
–
–
–
–
Single 1.2V to 3.6V Supply Possible  
Low Power Haptic Driver (PWM+H-Bridge)  
Auto Power Down  
590µW at 1.8V, 50SSPS  
450µW at 1.6V, 50SSPS  
50µW at 1.2V, 8.2kSPS  
•
Enhanced IEC ESD Protection  
–
±25kV Air Discharge, ±15kV Contact  
PENIRQ  
PINTDAV  
(optional)  
DAV  
X+  
Touch Screen  
X–  
Touch Engine  
With  
Analog Signal  
Processing  
Drivers  
Touch Screen  
Controller  
Y+  
Y–  
Interface  
AD0  
SCL  
TEMP  
AUX/IRRX  
Status Register  
SDA  
H+/U+  
H–/U–  
Haptic  
Controller  
RESET  
Overcurrent  
Protection  
Profiler  
External H-  
Bridge Driver  
10~20kHz  
PWM  
H-Bridge Driver  
Parameters  
GPIO1/D–/IRTX  
GPIO0/D+/IRPWN  
Enhanced ESD  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
I2C is a trademark of NXP Semiconductors.  
PRODUCT PREVIEW information concerns products in the  
formative or design phase of development. Characteristic data and  
other specifications are design goals. Texas Instruments reserves  
the right to change or discontinue these products without notice.  
Copyright © 2011, Texas Instruments Incorporated  
 
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