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TSC2301PAGR

更新时间： 2024-11-28 22:35:59
品牌 Logo 应用领域
德州仪器 - TI 解码器编解码器控制器
页数 文件大小 规格书
92页 1132K
描述
PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC

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TSC2301PAGR 数据手册

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TSC2301  
SLAS371D–SEPTEMBER 2002–REVISED AUGUST 2004  
PROGRAMMABLE TOUCH SCREEN CONTROLLER  
WITH STEREO AUDIO CODEC  
FEATURES  
APPLICATIONS  
•
SPI™ Serial Interface  
•
•
•
•
•
Personal Digital Assistants  
Cellular Phones  
MP3 Players  
Internet Appliances  
Smartphones  
•
Touch Screen Controller  
– 4-Wire Touch Screen Interface  
– Internal Detection of Screen Touch and  
Keypad Press  
– Touch Pressure Measurement  
– Ratiometric Conversion  
DESCRIPTION  
– Programmable 8-, 10- or 12-Bit Resolution  
– Programmable Sampling Rates Up to 125  
kHz  
– Direct Battery Measurement (0 to 6 V)  
– On-Chip Temperature Measurement  
– 4-by-4 Keypad Interface With  
Programmable De-Bounce and Key  
Masking  
The TSC2301 is a highly integrated PDA analog  
interface circuit. It contains a complete 12-bit A/D  
resistive touch screen converter (ADC) including  
drivers, touch pressure measurement capability,  
keypad controller, and 8-bit D/A converter (DAC)  
output for LCD contrast control. The TSC2301 offers  
programmable resolution of 8, 10, and 12 bits and  
sampling rates up to 125 kHz to accommodate  
different screen sizes. The TSC2301 interfaces to the  
– Integrated Touch Screen Processor  
Reduces Host CPU Interrupts and Overhead  
host controller through  
interface.  
a
standard SPI serial  
– Internal Timing Control With Programmable  
Delays and Averaging  
Stereo Audio Codec  
The TSC2301 features a high-performance 20-bit,  
48-ksps stereo audio codec with highly integrated  
analog functionality. The audio portion of the  
TSC2301 contains microphone input with built-in  
pre-amp and microphone bias circuit, an auxiliary  
stereo analog input, a stereo line-level output, a  
differential mono line-level output, and a stereo  
headphone amplifier output. The digital audio data is  
transferred through a standard I2S interface. A fully  
programmable PLL for generating audio clocks from a  
wide variety of system clocks is also included.  
•
– 20-Bit Delta-Sigma ADC/DAC  
– Dynamic Range: 98 dB  
– Sampling Rate Up to 48 kHz  
– I2S Serial Interface  
– Stereo 16-Ω Headphone Driver  
Full Power-Down Control  
8-Bit Current Output DAC  
On-Chip Crystal Oscillator  
Programmable Bass/ Midrange/ Treble EQ  
Effects Processing  
6 GPIO Pins  
Single 2.7-V to 3.6-V Supply  
64-Pin TQFP Package  
•
•
•
•
The TSC2301 also offers two battery measurement  
inputs capable of battery voltages up to 6 V, while  
operating at a supply voltage of only 2.7 V. It also has  
an on-chip temperature sensor capable of reading  
0.3°C resolution. The TSC2301 is available in 64-lead  
TQFP, and 120-ball VFBGA packages.  
•
•
•
•
US Patent No. 6246394  
120-Ball MicroStar Junior™ BGA Package  
FUNCTIONAL BLOCK DIAGRAM  
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.  
MicroStar Junior is a trademark of Texas Instruments.  
SPI is a trademark of Motorola.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2002–2004, Texas Instruments Incorporated  
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