LDS6023PYGI IDT, Integrated Device Technology Inc, LDS6023PYGI Datasheet

LDS6023PYGI

Manufacturer Part Number

LDS6023PYGI

Description

IC SENSOR TCH PURETOUCH 28SSOP

Manufacturer

IDT, Integrated Device Technology Inc

Series

PureTouch&TRADE;r

Type

Capacitive, Keypad LED Driverr

Datasheet

1.LDS6023NQGI.pdf (2 pages)

Specifications of LDS6023PYGI

Number Of Inputs/keys

6 Slider

Data Interface

I²C, Serial, SPI™

Voltage - Supply

1.65 V ~ 1.95 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

28-SSOP

Interface

I²C, SPI

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current - Supply

Output Type

Input Type

Other names

800-1890
LDS6023PYGI

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LDS6023PYGI

Manufacturer:

Quantity:

620

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IDT

LDS6023

PureTouch

Integrated Keypad LED Drivers

The LDS6023 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.

LDS6023 Features

Versatile, accurate capacitance-

to-digital converter (CDC)

• 500 kHz sigma-delta CDC

• 6 capacitance sensor input channels

• 2 ms update rate per active sensor

Integrated keypad LED drivers

• C3-C5 sensor inputs configurable

• 7.75 mA maximum driving current

• Flexible dimming control

• Processor-free synchronization with

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):

• Shutdown mode (typical):

* Excludes LED driver current and I/F and voltage

LDS6023 PurETOuCH™ CaPaCITanCE TOuCH IC

dependent V

as keypad LED drivers

(up to 23 ma available by connecting

multiple outputs to a single LED)

touch events

<150 uW (VDD1=1.8V)

<1 uW (VDD1=1.8V)

DDIO

current

™

Capacitance Touch IC with

semiconductor solutions

I/F SEL

RESETB

Description

The LDS6023 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.

Featuring 6 sensor inputs, 3 of which are dual-purpose I/Os configurable as either capacitive sensor

inputs or keypad LED drivers, the LDS6023 provides the flexibility to implement multiple touch inputs with

integrated lighting effects using a single controller.

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.

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

threshold levels to prevent false sensor activation. The LDS6023 is offered with both SPI-compatible and

output (GPIO) and interrupt output for additional communication with the host processor.

Figure 1. LDS6023 block diagram

VDDIO

C-compatible interfaces (active interface selected by I/F select pin) and features a general-purpose input/

VDD1

VSS1

TEST

Reset Logic

SD0/

SDA

Power-On

Serial Interface and

Control Logic

SDI/

SCLK/

Calibration

SCL

RAM

CSB/

Calibration

Engine

LDS6023

Interrupt and GPIO Logic

GPIO

Current Sources

Data Registers

Control and

LED Driver

INTB

Sigma-Delta

CDC

LED0-

LED2

Excitation

500 kHz

Source

C3/LED0

C4/LED1

C5/LED2

VDD2

VSS2

SHIELD

Related parts for LDS6023PYGI

LDS6023PYGI Summary of contents

Page 1

LDS6023 PureTouch ™ Capacitance Touch IC with Integrated Keypad LED Drivers The LDS6023 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 ...

Page 2

Flexible interface options • SPI-compatible serial I/F 2 • I C-compatible serial I/F • Separate V level for serial interface DDIO • GPIO and Interrupt Output Flexible package options • 28 pin 4mm x 4mm QFN, 0.8mm max height • 28 pin 5.3mm x 10.2mm SSOP, 1.83mm max height Power supply range • Touch supply (VDD1): 1.65V - 1.95V • LED supply (VDD2): 3.0V - 5.5V • ...

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