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器件3D模型￥ 7.765
TSC2046EIPWG4 产品手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
数模转换器
封装:
TSSOP-16
描述:
具有低压数字 I/O 和扩展 ESD 保护的 4 线触摸屏控制器 16-TSSOP -40 to 85
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TSC2046EIPWG4数据手册
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FEATURES
zz
zz
z SAME PINOUT AS ADS7846
zz
zz
z 2.2V TO 5.25V OPERATION
zz
zz
z 1.5V TO 5.25V DIGITAL I/O
zz
zz
z INTERNAL 2.5V REFERENCE
zz
zz
z DIRECT BATTERY MEASUREMENT (0V to 6V)
zz
zz
z ON-CHIP TEMPERATURE MEASUREMENT
zz
zz
z TOUCH-PRESSURE MEASUREMENT
zz
zz
z QSPI
TM
AND SPI
TM
3-WIRE INTERFACE
zz
zz
z AUTO POWER-DOWN
zz
zz
z AVAILABLE IN TSSOP-16, QFN-16, AND
VFBGA-48 PACKAGES
APPLICATIONS
zz
zz
z PERSONAL DIGITAL ASSISTANTS
zz
zz
z PORTABLE INSTRUMENTS
zz
zz
z POINT-OF-SALE TERMINALS
zz
zz
z PAGERS
zz
zz
z TOUCH SCREEN MONITORS
zz
zz
z CELLULAR PHONES
Low Voltage I/O
TOUCH SCREEN CONTROLLER
DESCRIPTION
The TSC2046 is a next-generation version to the ADS7846
4-wire touch screen controller which supports a low-voltage
I/O interface from 1.5V to 5.25V. The TSC2046 is 100% pin-
compatible with the existing ADS7846, and will drop into the
same socket. This allows for easy upgrade of current appli-
cations to the new version. The TSC2046 also has an on-
chip 2.5V reference that can be used for the auxiliary input,
battery monitor, and temperature measurement modes. The
reference can also be powered down when not used to
conserve power. The internal reference operates down to
2.7V supply voltage, while monitoring the battery voltage
from 0V to 6V.
The low-power consumption of < 0.75mW typ at 2.7V (refer-
ence off), high-speed (up to 125kHz sample rate), and on-
chip drivers make the TSC2046 an ideal choice for battery-
operated systems such as personal digital assistants (PDAs)
with resistive touch screens, pagers, cellular phones, and
other portable equipment. The TSC2046 is available in
TSSOP-16, QFN-16, and VFBGA-48 packages and is speci-
fied over the –40°C to +85°C temperature range.
CDAC
Internal 2.5V
Reference
SAR
TSC2046
Comparator
6-Channel
MUX
Serial
Data
In/Out
Temperature
Sensor
Pen
Detect
Battery
Monitor
DOUT
BUSY
CS
DCLK
DIN
V
BAT
AUX
V
REF
+V
CC
IOVDD
X+
X–
Y+
Y–
PENIRQ
TSC2046
SBAS265C – OCTOBER 2002 – REVISED JULY 2004
www.ti.com
Copyright © 2002-2004, Texas Instruments Incorporated
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.
US Patent No. 6246394
QSPI and SPI are registered trademarks of Motorola.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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