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Integrated Device Technology Electronic Components Datasheet

LDS6202 Datasheet

PureTouch Low Channel Capacitive Touch Sensor IC

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LDS6200 Family
PureTouch®* Low Channel Capacitive Touch Sensor IC Family
FEATURES
o Up to 8 touch sensor channels
o 2ms update rate per active sensor input**
o Built-in Slider/Scroll Support
o Configurable hysteresis and debounce
o Touch Preference Modes
o 1.65-5.5v supply voltage
o Low touch sensor operating power
o Full power mode (typ): <125uW***
o Optional low power mode
o On-chip automatic calibration algorithm
o I2C compatible serial I/F with VDDIO
o Power on touch detection
o Configurable for proximity sensing
o GPIO and interrupt output
o 3mm x 3mm 16-pin and 20-pin TQFN
packages
o SOIC packages also available
APPLICATIONS
o Mobile handsets, personal media players
o Portable navigation devices
o Remote controls
o Office equipment, multi-function printers
o Set top boxes
o Home appliances
o Brown goods
o Industrial controls
DESCRIPTION
The LDS6200 Family of capacitive touch controllers
enables streamlining of the human-machine interface
through the implementation of touch-based user
inputs such as touch buttons, sliders, and scroll
wheels. Employing a finely tuned sigma-delta
capacitance-to-digital converter and proprietary
noise-filtering algorithms, each device is able to
reliably sense small changes in capacitance, allowing
touch-based inputs to replace a side variety of
mechanical input types. On-chip automatic
calibration accounts for environmental changes such
as temperature, humidity, and dust and is executed
automatically.
The LDS6200 Family consists of four products with
up to 8 capacitive sensor input pins.
Part #
LDS6201
LDS6202
LDS6203
LDS6204
Touch Sensors
Up to 2
Up to 4
Up to 6
Up to 8
Package
16ld TQFN
16ld SOIC
20ld TQFN
20ld SOIC
The LDS6200 Family supports touch sensor supply
voltages from 1.65 to 5.5V. All parts support I2C
compatible serial interfaces and offer both a General
Purpose I/O (GPIO) and VDDIO support, enabling
1.65V to 5.5V voltage interface support. Typical
touch sensor operating power for the device is less
than 125uW***. Package offerings include thin form
factor 3mm x 3mm 16-pin TQFN, 3mm x 3mm 20-pin
TQFN, 3.9mm x 9.9mm 16-pin SOIC, 7.5mm x
12.8mm 20-pin SOIC.
* PureTouch is a registred trademark of IDT
** Nominal decimation rate (d=1024), per sensor input
*** 1.8V, excluding VDDIO current, which varies with VDDIO voltage, I/F type, and communication frequency
© 2011 IDT
Characteristics subject to change without notice
1
Doc. No. 6200DS, Rev. 0.5


Integrated Device Technology Electronic Components Datasheet

LDS6202 Datasheet

PureTouch Low Channel Capacitive Touch Sensor IC

No Preview Available !

LDS6200 Family
TYPICAL APPLICATION CIRCUIT FOR DUAL SUPPLY VOLTAGES
VDDIO (1.65V~5.5V)
SENSOR PCB
VDD* (1.65V~1.95V)
C1
SHIELD
C0
C1
C2
C3
C4
C5
C6
C7
VDD
LDOEN
VSS
C1, C2 > 1uF
*For direct application of 1.8V voltage.
VDDIO
RPU
VDD
RPU
SCLK
SDA
SCLK
SDA
C2
RPU
Host
Processor
With I2C
INTB
RESETB
INTB
RESETB
GPIO floating
TEST1
TEST0
Figure 1: Application Circuit with I2C I/F using dual voltage sources
© 2011 IDT
Characteristics subject to change without notice
2
Doc. No. 6200 FamilyDS, Rev. 0.5


Part Number LDS6202
Description PureTouch Low Channel Capacitive Touch Sensor IC
Maker IDT
Total Page 30 Pages
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