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LDS6126NQGI8

Description
IC SENSOR TCH PURETOUCH 28VFQFPN
Categorysemiconductor    Analog mixed-signal IC   
File Size648KB,3 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Environmental Compliance
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LDS6126NQGI8 Overview

IC SENSOR TCH PURETOUCH 28VFQFPN

LDS6126NQGI8 Parametric

Parameter NameAttribute value
typeButtons, sliders, wheels
proximity detectionnone
Number of inputsUp to 11
LED driver channelUp to 6
interfaceI²C,SMBus,SPI
resolution-
Voltage - Power1.65 V ~ 5.5 V
Current - Power70µA
Operating temperature-
Package/casing28-WFQFN Exposed Pad
Supplier device packaging28-VFQFPN(4x4)
semiconductor solutions
®
LDS6100/6120 Touch Family
PureTouch Capacitance Touch IC Family with Integrated LED Drivers
®
The IDT LDS6100/6120 family of PureTouch
®
controllers empower system designers to create
streamlined, attractive and reliable product designs with capacitive touch controls. Integrated LED drivers
allow visual feedback to be implemented when a touch occurs, without the need for host intervention.
Benefits
• Ease-of-use and flexible configurability
with optimized, state machine
architecture
• Longer battery life enabled with
ultra-low power consumption
• Low BOM cost and minimized solution
footprint using bare minimum of
external components
• Robust touch performance via
proprietary noise-filtering algorithms
• Customizable visual feedback effects
with integrated LED drivers (LDS6120)
Description
The LDS6100/6120 family of capacitance touch controllers from Integrated Device Technoogy
®
is
optimized for the implementation of touch-based input controls including sliders, scroll wheels and
buttons. A low power programmable capacitance-to-digital converter (CDC) supports up to 20 sensor
inputs, 10 of which may be configured as direct communication mode (DCM) outputs that emulate
mechanical buttons, enabling streamlined communication of touch events without the need to query the
serial interface bus.
When configured for capacitive sensing, the touch inputs are directed through an integrated switch matrix
to a sigma-delta CDC which senses changes in the external sensor array. When a change in capacitance
occurs above the user defined threshold, a touch event is recognized and the host processor is notified via
an interrupt pin or DCM output. On the LDS6120 products, a variety of built-in LED lighting effects may
be automatically initiated by a touch event with no processor intervention required.
On-chip calibration logic continuously monitors the environment and automatically adjusts touch
sensitivity to insure robust performance. Proprietary noise-filtering algorithms may also be activated to
prevent false sensor activation in noisy system environments. The LDS6100/6120 family is offered with
SPI-compatible, I
2
C-compatible and SMBus-compatible interfaces, selectable in real-time using the I/F
select pins. General-purpose input/output (GPIO) and interrupt outputs are also provided for additional
communication with the host processor.
Applications
• Mobile handsets and smartphones
• Personal media players (MP3/MP4)
• Gaming devices
• Remote controls
• Television, audio/video
• Set-top boxes, multi-function printers,
enterprise telephony
• White goods
• Industrial and medical devices
LDS6120
Switch
Matrix
Power-On
Reset Logic
Calibration
Engine
Sigma-Delta
CDC
CDC
C0/DCM10
C1/DCM 11
C9/DCM9
C10/LED0
C19/LED9
VDD2
VSS2
Calibration
RAM
RESETB
TEST
VDD1
VSS1
LDOEN
VDDIO
I/F_SEL0
I/F_SEL1
LED Driver
Current Sources
LED0-
LED9
Control and
Data Registers
LDO
Serial Interface and
Control Logic
SD0/
SDA
SDI/
A1
SCLK/ CSB/
SCL
A0
Interrupt and GPIO Logic
GPIO
INTB
Excitation
Source
SHIELD
Figure 1. LDS6120 block diagram
IDT
®
LDS6100-6120 PURETOUCH
®
CAPACITANCE TOUCH FAMILY FLYER
1

LDS6126NQGI8 Related Products

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Description IC SENSOR TCH PURETOUCH 28VFQFPN PureTouch® Capacitance Touch IC Family with Integrated LED Drivers IC SENSOR TCH PURETOUCH 40VFQFPN IC SENSOR TCH PURETOUCH 40VFQFPN IC SENSOR TCH PURETOUCH 28VFQFPN IC SENSOR TCH PURETOUCH 28SSOP IC SENSOR TCH PURETOUCH 28SSOP IC SENSOR TCH PURETOUCH 28SSOP IC SENSOR TCH PURETOUCH 40VFQFPN IC SENSOR TCH PURETOUCH 28VFQFPN
type Buttons, sliders, wheels - Buttons, sliders, wheels Buttons, sliders, wheels Buttons, sliders, wheels Buttons, sliders, wheels Buttons, sliders, wheels Buttons, sliders, wheels Buttons, sliders, wheels Buttons, sliders, wheels
proximity detection none - none none none none none none none none
Number of inputs Up to 11 - Up to 20 Up to 16 Up to 8 Up to 8 Up to 11 Up to 8 Up to 16 Up to 8
interface I²C,SMBus,SPI - I²C,SMBus,SPI I²C,SMBus,SPI I²C,SMBus,SPI I²C,SMBus,SPI I²C,SMBus,SPI I²C,SMBus,SPI I²C,SMBus,SPI I²C,SPI
Voltage - Power 1.65 V ~ 5.5 V - 1.65 V ~ 5.5 V 1.65 V ~ 5.5 V 1.65 V ~ 5.5 V 1.65 V ~ 5.5 V 1.65 V ~ 5.5 V 1.65 V ~ 5.5 V 1.65 V ~ 5.5 V 1.65 V ~ 5.5 V
Current - Power 70µA - 7.75mA 70µA 70µA 70µA 70µA 70µA 70µA 70µA
Package/casing 28-WFQFN Exposed Pad - 40-VFQFN Exposed Pad 40-VFQFN Exposed Pad 28-WFQFN Exposed Pad 28-SSOP (0.209", 5.30mm wide) 28-SSOP (0.209", 5.30mm wide) 28-SSOP (0.209", 5.30mm wide) 40-VFQFN Exposed Pad 28-WFQFN Exposed Pad
Supplier device packaging 28-VFQFPN(4x4) - 40-VFQFPN(5x5) 40-VFQFPN(5x5) 28-VFQFPN(4x4) 28-SSOP 28-SSOP 28-SSOP 40-VFQFPN(5x5) 28-VFQFPN(4x4)
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