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LDS6010 Datasheet

Capacitance Touch IC

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semiconductor solutions
®®
LDS6010
PureTouchCapacitance Touch IC with Integrated
TouchSense®-Ready Haptics Driver
The LDS6010 PureTouch™ controller empowers system designers to create streamlined, attractive and
reliable product designs with capacitive touch controls. An integrated TouchSense®-ready haptics driver
enables high quality tactile feedback when a touch occurs, enhancing the user experience.
LDS6010 Features
Versatile, accurate capacitance-
to-digital converter (CDC)
• 500 kHz sigma-delta CDC
• 15 capacitance sensor input channels
• 2 ms update rate per active sensor
Full-featured haptics driver for
portable applications
• Drives both linear and rotating actuators
• Intelligent PWM input enabling
automatic standby mode
• Internal voltage regulator enables direct
connection to Vbattery with no
degradation in haptics effects
Integrated, automatic
calibration algorithms
• Environmental compensation
• On-chip RAM to store calibration data
Integrated touch preference modes
• Strongest single touch
• Strongest two touches
• Unrestricted (all) touches
Ultra-low touch sensor
power consumption*
• Operating mode (typical):
<150 uW (VDD1=1.8V)
• Shutdown mode (typical):
<1 uW (VDD1=1.8V)
* Excludes haptics driver current and I/F and voltage
dependent VDDIO current
Description
The LDS6010 is a programmable capacitance-to-digital converter (CDC) designed for use with capacitive
sensor arrays implementing touch-based input controls including sliders, scroll wheels, and buttons.
A built-in TouchSense®-ready haptics driver enables efficient integration of advanced tactile feedback,
providing positive confirmation when a touch occurs. Touch sensor inputs are directed through an integrated
switch matrix to a 500 kHz sigma-delta CDC which senses changes in the external sensor array. Featuring
15 sensor inputs, the LDS6010 provides the flexibility required to implement multiple tactile-enabled
touch inputs using a single controller.
On-chip calibration logic continuously monitors the environment and automatically adjusts on-and-off
threshold levels to prevent false sensor activation. The LDS6010 is offered with both SPI-compatible and
I2C-compatible interfaces (active interface selected by I/F select pin) and features a general-purpose input/
output (GPIO) and interrupt output for additional communication with the host processor.
Power-On
Reset Logic
®
LDS6010
Calibration
Engine
Sigma-Delta
CDC
VDD1
VSS1
RESETB
TEST0
TEST1
TEST2
Calibration
RAM
Control and
Data Registers
VDDIO
I/F SEL
Serial Interface and
Control Logic
Interrupt and GPIO Logic
SD0/ SDI/ SCLK/ CSB/
SDA A1 SCL A0
Figure 1. LDS6010 block diagram
GPIO
INTB
Vreg
Haptics
Driver
500 kHz
Excitation
Source
C0
C1
C2
C3
C4
C5
C14
VDD2
VDP
VDN
PWM
GAIN
VSS2
SHIELD
IDT® LDS6010 PureTouch™ Capacitance Touch IC
Downloaded from Elcodis.com electronic components distributor
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Integrated Device Technology Electronic Components Datasheet

LDS6010 Datasheet

Capacitance Touch IC

No Preview Available !

Flexible interface options
• SPI-compatible serial I/F
• I2C-compatible serial I/F
• Separate VDDIO level for serial interface
• GPIO and Interrupt Output
Power supply range:
• Touch supply (VDD1): 1.65V - 1.95V
• Haptics supply (VDD2): 2.4V - 3.6V
• VDDIO=1.65V - 3.6V
Small footprint package:
• 40 pin 5mm x 5mm QFN,
0.8mm max height
Applications:
• Mobile handsets and smartphones
• Personal music and media players
(MP3/MP4)
• Gaming devices
• Remote controls
Integrated TouchSense®-ready haptics driver
for portable applications
The LDS6010 features an integrated TouchSense®-ready haptics driver, ensuring compatibility with
Immersion’s TouchSense® Platform of advanced haptics effects for enhanced gaming feedback, vibrating
ringtones, and tactile confirmation for touch-based controls. Compatible with both ERM (eccentric rotating
mass) and LRA (linear resonant actuator) vibration motors, the LDS6010 haptics driver supports crisp
response times and a high degree of control over vibration magnitude and attenuation. An internal voltage
regulator enables direct connection of the haptics driver supply to the system battery while still ensuring a
consistent haptics experience across the entire battery discharge cycle.
Ideal solution for portable applications
The LDS6010 is optimized for minimal power consumption, with touch sensor circuits operating from
a 1.8V supply voltage. In full power mode, sensor conversion and calibration occur continuously,
minimizing the time between touch event and touch detection. With its ultra-low touch sensor power
consumption of <150 uW (typical), the LDS6010 may be operated continuously in full power mode,
eliminating the need for introduced latencies that can cause noticeable delays and degrade the
user experience.
The total solution footprint is also optimized for portable applications, with the functionality of multiple
components consolidated into a single device. With integrated haptics driver functionality, the LDS6010
is a flexible solution combining the functionality of two discrete ICs into a compact 5mm x 5mm TQFN
package with 0.75mm package thickness.
VDDIO (1.65V~3.6V)
SENSOR
PCB
VDD2 (2.4V~3.6V)
VDD1 (1.65V~1.95V)
C1 C2
floating
floating
®
LDS6010
SHIELD
VDDIO
I/F SEL
C0
C1 CSB
C2 SCLK
C3 SDI
C4 SDO
C5
C6 PWM
C7
INTB
C8 RESETB
C9 GPIO
C10 TEST0-2
C11
C12
C13
C14
VDD1
VDD2
VDP
VDN
VSS1
VSS2
GAIN
floating
floating
Host Processor
with SPI
VDD
VSS
SSB
SCLK
MOSI
MISO
PWMO
INTB
RESETB
A
Rf (Optional)
Cr
C1=C2: > 1uF
Figure 2. LDS6010 application diagram
Discover what IDT know-how can do for you.
www.IDT.com/go/touch
© 2009 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are registered trademarks of Integrated Device
Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners.
® Printed in USA 08-09/MG/BWD/PDF_r7_v1
FLYR-LDS6010-089
Downloaded from Elcodis.com electronic components distributor
Free Datasheet http://www.datasheet4u.net/


Part Number LDS6010
Description Capacitance Touch IC
Maker IDT
Total Page 2 Pages
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