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參數(shù)資料
| 型號： | TSC2046IZQCT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PBGA48 |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, PLASTIC, VFBGA-48 |
| 文件頁數(shù)： | 1/33頁 |
| 文件大小： | 774K |
| 代理商： | TSC2046IZQCT |
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FEATURES
D SAME PINOUT AS ADS7846
D 2.2V TO 5.25V OPERATION
D 1.5V TO 5.25V DIGITAL I/O
D INTERNAL 2.5V REFERENCE
D DIRECT BATTERY MEASUREMENT (0V TO 6V)
D ON-CHIP TEMPERATURE MEASUREMENT
D TOUCH-PRESSURE MEASUREMENT
D QSPI AND SPI 3-WIRE INTERFACE
D AUTO POWER-DOWN
D AVAILABLE IN TSSOP-16, QFN-16, AND
VFBGA-48 PACKAGES
APPLICATIONS
D PERSONAL DIGITAL ASSISTANTS
D PORTABLE INSTRUMENTS
D POINT-OF-SALE TERMINALS
D PAGERS
D TOUCH SCREEN MONITORS
D CELLULAR PHONES
US Patent No. 6246394
QSPI and SPI are registered trademarks of Motorola.
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 applications 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
(reference 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 specified 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
SBAS265G OCTOBER 2002 REVISED JANUARY 2008
Low-Voltage I/O
TOUCH SCREEN CONTROLLER
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.
www.ti.com
Copyright
20022008, Texas Instruments Incorporated
All trademarks are the property of their respective owners.
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.
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