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TSC2200IPW-TSC2200IRHB-TSC2200IRHBR
Programmable Touch Screen Controller with 12-Bit 125KHz ADC and Keypad Interface
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
FEA TURES 4-WIRE TOUCH SCREEN INTERFACE AND
4-BY-4 KEYPAD INTERFACE RATIOMETRIC CONVERSION SINGLE 2.7V TO 3.6V SUPPLY SERIAL INTERFACE INTERNAL DETECTION OF SCREEN TOUCH
AND KEYPAD PROGRAMMABLE 8-, 10-, OR 12-BIT
RESOLUTION PROGRAMMABLE SAMPLING RATES DIRECT BATTERY MEASUREMENT (0.5V to 6V) ON-CHIP TEMPERATURE MEASUREMENT TOUCH-PRESSURE MEASUREMENT FULL POWER-DOWN CONTROL TSSOP-28 AND QFN-32 PACKAGES
APPLICATIONS PERSONAL DIGITAL ASSISTANTS CELLULAR PHONES MP3 PLAYERS
PDA ANALOG INTERFACE CIRCUIT
DESCRIPTIONThe TSC2200 is a complete PDA analog interface circuit. It
contains a complete 12-bit, Analog-to-Digital (A/D) resistive
touch screen converter including drivers, the control to mea-
sure touch pressure, keyboard controller, and an 8-bit Digital-
to-Analog (D/A) converter output for LCD contrast control.
The TSC2200 interfaces to the host controller through a
standard SPI™ serial interface. The TSC2200 offers program-
mable resolution and sampling rates from 8- to 12-bits and up
to 125kHz to accommodate different screen sizes.
The TSC2200 also offers two battery-measurement inputs
capable of reading battery voltages up to 6V, while operating
at only 2.7V. It also has an on-chip temperature sensor
capable of reading 0.3°C resolution. The TSC2200 is available
in a TSSOP-28 and a QFN-32 package.
TSC2200SBAS191F – FEBRUARY 2001 – REVISED APRIL 2004
SPI is a registered trademark of Motorola.
US Patent No. 624639.
