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TSC2004

更新时间： 2024-09-21 03:57:51
品牌 Logo 应用领域
BB 控制器
页数 文件大小 规格书
54页 1137K
描述
1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire TOUCH SCREEN CONTROLLER with I2C⑩ Interface

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TSC2004 数据手册

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SBAS408A–JUNE 2007–REVISED AUGUST 2007  
1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire  
TOUCH SCREEN CONTROLLER with I2C™ Interface  
FEATURES  
APPLICATIONS  
•
•
•
•
Cellular Phones  
•
•
•
•
•
•
•
4-Wire Touch Screen Interface  
Portable Instruments  
MP3 Players, Pagers  
Multiscreen Touch Control  
Ratiometric Conversion  
Single 1.2V to 3.6V Supply  
Preprocessing to Reduce Bus Activity  
High-Speed I2C-Compatible Interface  
Internal Detection of Screen Touch  
Register-Based Programmable:  
DESCRIPTION  
The TSC2004 is a very low-power touch screen  
controller designed to work with power-sensitive,  
handheld applications that are based on an  
advanced low-voltage processor. It works with a  
supply voltage as low as 1.2V, which can be  
supplied by a single-cell battery. It contains a  
complete, ultra-low power, 12-bit, analog-to-digital  
(A/D) resistive touch screen converter, including  
drivers and the control logic to measure touch  
pressure.  
–
–
–
10-Bit or 12-Bit Resolution  
Sampling Rates  
System Timing  
•
•
•
•
On-Chip Temperature Measurement  
Touch Pressure Measurement  
Auto Power-Down Control  
Low Power:  
In addition to these standard features, the TSC2004  
offers preprocessing of the touch screen  
measurements to reduce bus loading, thus reducing  
the consumption of host processor resources that  
can then be redirected to more critical functions.  
The TSC2004 supports an I2C serial bus and data  
transmission protocol in all three defined modes:  
–
–
–
–
–
760μW at 1.8V, 50SSPS  
580μW at 1.6V, 50SSPS  
285μW at 1.2V, 50SSPS  
74μW at 1.6V, 8.2kSPS Eq. Rate  
47μW at 1.2V, 8.2kSPS Eq. Rate  
•
•
Enhanced ESD Protection:  
standard,  
programmable resolution of 10 or 12 bits to  
accommodate different screen sizes and  
performance needs.  
fast,  
and  
high-speed.  
It  
offers  
–
–
–
–
±6kV HBM  
±1kV CDM  
Target ±18kV Air Gap Discharge  
Target ±12kV Contact Discharge  
The TSC2004 is available in a miniature, 18-lead,  
5 x 5 array, (2.554 ±0.54)mm x (2.554 ±0.54)mm  
wafer chip-scale package (WCSP), and a 20-pin, 4 x  
4 QFN package. Both packages are characterized  
for the –40°C to +85°C industrial temperature range.  
2.5 x 2.5 WCSP-18 and 4 x 4 QFN-20 Packages  
U.S. Patent NO. 6246394; other patents pending.  
PENIRQ  
PINTDAV  
DAV  
VREF  
X+  
Touch  
SCL  
X-  
Y+  
Y-  
Screen  
Drivers  
2
I C  
SAR  
ADC  
SDA  
Interface  
Mux  
Serial  
Interface  
AD0  
and  
TEMP  
AD1  
Control  
AUX  
Internal  
Clock  
RESET  
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.  
I2C is a trademark of NXP Semiconductors.  
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2007, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...54

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TSC-2004.7KOHM5%QC VISHAY

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TSC-2004.7OHM5%QCBKTS VISHAY

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