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| 型号： | TSC2302IRGZRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| 封装： | GREEN, PLASTIC, VQFN-48 |
| 文件页数： | 1/85页 |
| 文件大小： | 1483K |
| 代理商： | TSC2302IRGZRG4 |
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TSC2302
SLAS394 – JULY 2003
PROGRAMMABLE TOUCH SCREEN CONTROLLER
WITH STEREO AUDIO CODEC
FEATURES
APPLICATIONS
SPI Serial Interface
Personal Digital Assistants
Touch Screen Controller
Cellular Phones
– 4-Wire Touch Screen Interface
MP3 Players
– Internal Detection of Screen Touch
Internet Appliances
– Touch Pressure Measurement
Smartphones
– Ratiometric Conversion
– Programmable 8-, 10- or 12-Bit Resolution
DESCRIPTION
– Programmable Sampling Rates Up to
125 kHz
The TSC2302 is a highly integrated PDA analog
– Direct Battery Measurement (0 to 6 V)
interface circuit. It contains a complete 12-bit A/D
– On-Chip Temperature Measurement
resistive touch screen converter (ADC) including
– Integrated Touch Screen Processor
drivers, touch pressure measurement capability, and
Reduces Host CPU Interrupts and Overhead
8-bit D/A converter (DAC) output for LCD contrast
– Internal Timing Control With Programmable
control. The TSC2302 offers programmable resolution
Delays and Averaging
of 8, 10, and 12 bits and sampling rates up to 125 kHz
to accommodate different screen sizes. The TSC2302
Stereo Audio Codec
interfaces to the host controller through a standard SPI
– 20-Bit Delta-Sigma ADC/DAC
serial interface.
– Dynamic Range: 98 dB
– Sampling Rate Up to 48 kHz
The TSC2302 features a high-performance 20-bit,
– I2S Serial Interface
48-ksps stereo audio codec with highly integrated
– Stereo 16-
Headphone Driver
analog functionality. The audio portion of the TSC2302
contains microphone input with built-in pre-amp and
Full Power-Down Control
microphone bias circuit, an auxiliary stereo analog
8-Bit Current Output DAC
input, a mono line-level output, and a stereo
On-Chip Crystal Oscillator
headphone amplifier output. The digital audio data is
Programmable Bass/ Midrange/ Treble EQ
transferred through a standard I2S interface. A fully
Effects Processing
programmable PLL for generating audio clocks from a
wide variety of system clocks is also included.
Single 2.7-V to 3.6-V Supply
48-pin QFN Package
The TSC2302 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 TSC2302 is available in a
48-lead QFN.
US Patent No. 6246394
SPI is a trademark of Motorola.
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2003, Texas Instruments Incorporated
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily in-
clude testing of all parameters.
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