Datasheet > LDS6025NQGI8

LDS6025NQGI8

更新时间： 2024-10-01 21:01:47

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
2页	318K
描述
Micro Peripheral IC

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LDS6025NQGI8 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Base Number Matches：	1

LDS6025NQGI8 数据手册

semiconductor solutions

LDS6025

PureTouch^™Capacitance Touch IC with

Integrated Keypad LED Drivers

The LDS6025 PureTouch™ controller empowers 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.

Description

LDS6025 Features

The LDS6025 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.

Versatile, accurate capacitance-

to-digital converter (CDC)

•ꢀ 500ꢀkHzꢀsigma-deltaꢀCDC

Featuring 10 sensor inputs, 5 of which are dual-purpose I/Os conﬁgurable as either capacitive sensor

inputs or keypad LED drivers, the LDS6025 provides the ﬂexibility to implement multiple touch inputs with

integrated lighting effects using a single controller.

•ꢀ 10ꢀcapacitanceꢀsensorꢀinputꢀchannels

•ꢀ 2ꢀmsꢀupdateꢀrateꢀperꢀactiveꢀsensor

When conﬁgured for capacitive sensing, the I/Os are directed through an integrated switch matrix to a

500 kHz sigma-delta CDC which senses changes in the external sensor array. When a sufﬁciently large

change in capacitance occurs, a sensor activation is registered and the host processor is notiﬁed. LED

lighting effects are automatically initiated by a touch event with no processor intervention required.

Integrated keypad LED drivers

•ꢀ C5-C9ꢀsensorꢀinputsꢀconﬁgurableꢀ

as keypad LED drivers

•ꢀ 7.75ꢀmAꢀmaximumꢀdrivingꢀcurrentꢀ

(upꢀtoꢀ39ꢀmAꢀavailableꢀbyꢀconnectingꢀ

multiple outputs to a single LED)

On-chip calibration logic continuously monitors the environment and automatically adjusts on-and-off

threshold levels to prevent false sensor activation. The LDS6025 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.

•ꢀ Flexibleꢀdimmingꢀcontrol

•ꢀ Processor-freeꢀsynchronizationꢀ

with touch events

Integrated, automatic

calibration algorithms

•ꢀ Environmentalꢀcompensation

LDS6025

Power-On

Reset Logic

Calibration

Engine

Sigma-Delta

CDC

•ꢀ On-chipꢀRAMꢀtoꢀstoreꢀcalibrationꢀdata

C5/LED0

Integrated touch preference modes

VDD1

•ꢀ Strongestꢀsingleꢀtouch

C9/LED4

LED0-

LED4

•ꢀ Strongestꢀtwoꢀtouches

LED Driver

Current Sources

Calibration

RAM

VSS1

RESETB

TEST

VDD2

VSS2

•ꢀ Unrestrictedꢀ(all)ꢀtouches

Ultra-low touch sensor

power consumption*

•ꢀ Operatingꢀmodeꢀ(typical):ꢀꢀ

<150 uW (VDD1=1.8V)

Control and

Data Registers

•ꢀ Shutdownꢀmodeꢀ(typical):ꢀꢀ

<1 uW (VDD1=1.8V)

500 kHz

Excitation

Source

SHIELD

VDDIO

I/F SEL

Serial Interface and

Control Logic

Interrupt and GPIO Logic

* Excludes LED driver current and I/F and voltage

dependent V_DDIOcurrent

SD0/ SDI/ SCLK/ CSB/

SCL

GPIO

INTB

SDA

IDT^®LDS6025 PꢀꢁETOꢀCH™ CꢂPꢂCITꢂꢃCE TOꢀCH IC

Figure 1. LDS6025 block diagram

中文翻译

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与LDS6025NQGI8相关器件

型号	品牌	获取价格	描述	数据表
LDS6025PYGI8	IDT	获取价格	Micro Peripheral IC
LDS6028	IDT	获取价格	PureTouch™ Capacitance Touch IC with Integrat
LDS6028NQGI	IDT	获取价格	Micro Peripheral IC
LDS6028NQGI8	IDT	获取价格	Micro Peripheral IC
LDS6100	ETC	获取价格	PureTouch Capacitance Touch IC Family with Integrated LED Drivers
LDS6104	ETC	获取价格	PureTouch Capacitance Touch IC Family with Integrated LED Drivers
LDS6107	ETC	获取价格	PureTouch Capacitance Touch IC Family with Integrated LED Drivers
LDS6107PYGI8	IDT	获取价格	PureTouchÂ® Capacitance Touch IC Family with
LDS6108	ETC	获取价格	PureTouch Capacitance Touch IC Family with Integrated LED Drivers
LDS6120	ETC	获取价格	PureTouch Capacitance Touch IC Family with Integrated LED Drivers

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