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Smart Sensing Selector Guide

www.semtech.com/touch-interface

Touch & Proximity Sensing Solutions

proximity

Innovative

Human Sensingfor Smarter Touch Applications

Semtech’s advanced sensing solutions provide best-in-class sensitivity with robust noise immunity to enhance touch & near range proximity detection. These ultra-low power, feature-rich touch controllers are optimized for a wide range of battery-powered, portable applications such as smartphones, tablets, wearables, notebooks, GPS, handheld gaming devices, and other consumer electronics.

contents

Overview 2

Smart Proximity Sensor for SAR Applications 3

High-Performance Touch and Proximity Solutions 6

Low Power Touchscreen Controllers 10

2 Semtech Smart Proximity Selector Guide • 2017

www.semtech.com 3

SMART PROXIMITY SOLUTIONS

Part Number Sensor inputs Interface Proximity Smart EngineAuto

CompensationPackage (mm)

SX9306 Up to 4 I2C ü ü üQFN (3x3)

WLCSP (1.6x1.2)

Ultra-Small, Low Power, Smart Proximity Sensor for SAR/Human Sensing

The SX9306 is an ultra-low power capacitive Specific Absorption Rate (SAR) controller that accurately discriminates between an inanimate object and human body proximity. The resulting detection is used in portable electronic devices to reduce and control radio frequency (RF) emission power in the presence of a human body, enabling significant performance advantages for manufacturers of electronic devices with electro-magnetic radiation sources to meet stringent emission regulations criteria and Specific Absorption Rate (SAR) standards.

FEATURES

• Patented on-chip smart engine for human detection and advanced SAR control

• Up to 4 programmable capacitive sensor inputs – High resolution capacitive sensing down to 0.08fF – Capacitance offset compensation up to 30pF – Stable proximity sensing with temperature – >30mm detection distance – Configurable proximity detection (single/combined) – Integrated high performance RF shield for enhanced noise

immunity – Extremely low temperature drift for stable measurement – Reduced VDD ripple susceptibility

• Input supply voltage: 2.7V-5.5V

• Active sensor guarding

• Ultra-low power – Doze mode: 18µA – Sleep mode: 2.5µA

• Automatic calibration – Eliminates false triggers due to environmental factors

• Dedicated TX_EN pin – For synchronized proximity measurement to RF

transmission

• 400kHz I2C serial interface – Input level compatible w/ 1.8V host processor

• Compact size: – 3mm x 3mm thin QFN-20 – 1.6mm x 1.2mm WLCSP-12

APPLICATIONS

• Smartphones

• Tablets

• Wearable Devices

• Notebooks

• Mobile hotspot

Smart Proximity Solutions

CapSense

and ADC

POR

OSC

AUTO CAL &CONTROL

CS0

SCLSDA

VDD

GND

CSGSENSORS NIRQ

SVDD

A1

CS2

CS3

SmartEngine

A0

CS1*

* Internal/not-bonded outin WLCSP package

NRST*, TXEN*

RFShield

SX9306

HOST

WORLD’S

FIRST


Cap Sense

and ADC

POR

OSC

AUTO CAL & CONTROL

CS0A

CS0B

NRSTSCL

VDD

GND

TXENCSG

SAR SENSOR SDA

NIRQ

SVDD

A0A1

CS1A

CS1B

1714

15

11

12

13

18

19

20

16

6,

1

3

2

5

4SmartEngine

To VDD or GND

HOST

SX9300

The SX9300 is the world’s first dual channel capacitive Specific Absorption Rate (SAR) controller that accurately discriminates between an inanimate object and human body proximity.

FEATURES

• Dual SAR smart sensor inputs – On-chip engine for inanimate object vs. human

body detection – Stable proximity sensing with temperature – >30mm detection distance – Capacitance offset compensation to 30pf




• Automatic calibration – Eliminates false triggers due to environmental

factors

• Dedicated TX_EN pin – For synchronize proximity measurement to RF

transmission

• 400kHz I2C serial interface – Input level compatible with 1.8V host processor

• Compact size: 3mm x 3mm thin QFN-20 package

APPLICATIONS

• Smartphones

• Tablets


• Notebooks

• Mobile hotspot


Part Number Sensor inputs Interface Proximity Smart EngineAuto


SX9300 2 I2C ü ü ü QFN (3x3)

Smart Proximity Sensors for SARNEWPRODUCT


www.semtech.com 5


Part Number Sensor inputs Interface ProximityAuto


SX9500 4 I2C ü ü QFN (3x3)

The SX9500 is a low-cost, very low power 4-channel capacitive controller that can operate either as a proximity or button sensor. The SX9500 includes sophisticated onchip auto-calibration circuitry to regularly perform sensitivity adjustments, maintaining peak performance over a wide variation of temperature, humidity and noise environments, providing simplified product development and enhanced performance.

FEATURES

• 4 Channel sensor inputs – Stable proximity sensing with temperature – >30mm detection distance – Capacitance offset compensation to 30pf




• Automatic calibration – Eliminates false triggers due to environmental factors

• Dedicated TX_EN pin – For synchronize proximity measurement to RF

transmission

• 400kHz I2C serial interface – Input level compatible with 1.8V host processor

• Compact size: 3mm x 3mm thin QFN-20 package

APPLICATIONS

• Smartphones

• Tablets


• Notebooks

• Mobile hotspot

Low Power Proximity Sensor for SAR NEWPRODUCT


Cap Sense

and ADC

POR

OSC

AUTO CAL & CONTROL

CS2

CS3

NRSTSCL

VDD

GND

TX_ENCSG

SDA

NIRQ

SVDD

A0A1

CS0

CS1

1714

15

11

12

13

18

19

20

16

6,

1

2

3

4

5

To VDD or GND

HOST

GUARD

SX9500


High Performance Touch ButtonControllers with Proximity Sensing

SX9510, SX9511, SX9512, SX9513 — A family of feature-rich capacitive touch button solutions enhances the ECO mode present in many green home electronics by integrating an IR decoder for automatic system wake up, thus minimizing the power consumption while in standby. The family also features a unique patent pending circuitry which combines the capacitive sensor with the LED driver to reduce the overall footprint.

FEATURES

• Fully integrated 8 channel touch button controller and 8 LED driver solution

– Separate core and I/O supplies – 2.7V-5.5V core supply voltage – 1.65V-5.5V I/O supply voltage

• Support for metal sensing user interface design

• Smart auto-offset compensation – Eliminate false triggers due to environmental factors – Compensate up to 40pf

• Extreme sensitivity: – Works with thick overlay materials (>5mm)

• Enhanced proximity sensing – >10cm detection – Dedicated proximity sensor or combined mode

• Integrated IR decoder for smart energy management

• Reduces overall system power consumption in standby mode

• Individual 256-step intensity/Fade-in/Fade-out control

• Programmable address w/ 8 commands

• Compatible with a wide range of protocols (i.e. NEC, RCA, Toshiba)

• Advanced LED driver for visual feedback – High current, 15mA LED outputs – 256-step intensity control with blink/ breathing mode

• Buzzer control for audible feedback

• 2 channel analog output for direct mechanical button replacement

– 6-bit DAC programmable control – 100Ω output impedance – 400kHz I2C serial interface

• Ultra-small footprint – 4.0mm x 4.0mm QFN-20 – 4.4mm x 6.5mm TSSOP-24

Touch Button & Proximity Solutions

HIGH-PERTOUCH

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I2C

TOUCH BUTTON &

LED DRIVER

INTERFACE

GPO/LEDENGINE

OSC

POR

VREG

CONTROL

VDDCAPACITIVETOUCH BUTTONS

VDD

SCL

SDA

LEDSINK/SHIELD

ANALOGOUTPUT

AOUT2/NIRQ/

BUZZER/PWRSTATE

NVM

AOUT1

LED [7:0]

NRST

GND

IR-DECODER

IRIN

PWRON

BL7

BL6

BL5

BL4

BL3

BL2

BL1

BL0

SPO1

SPO2

SVDD

SX9510/11

TOUCH BUTTONS & PROXIMITY SOLUTIONS

Part Number

Sensor Inputs & LED Driver

Interface Prox.IR

DecoderMetal

SensingAuto

Comp.Intensity

(256-step) Field Prog. Memory

Package (mm)

SX9510 8I2C/

Analog ü ü ü ü Lin./Log. üQFN (4x4)

TSSOP (4.4x6.5)

SX9511 8I2C/

Analog– ü – ü Lin./Log. ü

QFN (4x4)TSSOP (4.4x6.5)

SX9512 8I2C/

Analog ü – ü ü Lin./Log. üQFN (4x4)

TSSOP (4.4x6.5)

SX9513 8I2C/

Analog– – – ü Lin./Log. ü

QFN (4x4)TSSOP (4.4x6.5)

APPLICATIONS

• Notebooks

• Tablets

• Mobile applications

• LCD TVs, monitors

• White goods

• Metal sensing applications

• Consumer products, instrumentation, automotive

• Mechanical button replacement



gnd

gpio5

gpio4

gpio3

gpio2

gpio1

gpio0

vana

rese

tb

gnd

gpio

7

vdig

gpio6cn cp vd

d

scl

intb

sda

bottom plate

30 M

atrix

LE

Ds

SX8663

30 Capacitive Matrix Buttons + Proximity

BUZZER

Analog Sensor Interface

Clock Generation

RC

PWM LEDController

Power Management

Micro Processor

GPIO Controller

RAM NVM

ROM I2C

Cap0

Cap1

Cap2

Cap3

Cap4

Cap5

Cap6

Cap7

Cap8

Cap9

Cap10

Cap

0

Cap

8

Cap

1

Cap

2

Cap

10

Cap

3

Cap9

Cap4

Cap7

Cap6

Cap5

Cap1

1

TOUCH BUTTON & PROXIMITY SOLUTIONS

Part Number

Button #

LED Driver

Interface Proximity Button Overlay Auto

Comp.Intensity

(256-step) Fade-in/

outAuto

Lightening

Field Prog.

Memory

Package (mm)

SX8661 8 8 I2C ü ü >5mm ü Lin./Log. ü ü ü QFN (4x4)

SX8662 36 36 I2C – ü >5mm ü Lin./Log. ü ü ü QFN (5x5)

SX8663 36 36 I2C ü ü >5mm ü Lin./Log. ü ü ü QFN (5x5)

Touch Button Controllers withProximity Sensing & Analog Output

The versatile, ultra-low power SX866x platform provides a cost effective solution to support various touch user interface designs (up to 36 buttons) in a space saving 5x5mm footprint. It also comes with individual LED drivers for visual feedback as well as buzzer control for audible feedback.

FEATURES

• High resolution capacitive sensing solution – Proximity detection up to 10cm – Support up to 36 matrix buttons

• Up to 2 analog output interfaces (SX8661) – Enable button reporting through host’s ADC

• Versatile button reporting configuration (SX8661) – Advanced channel filtering responds to the

strongest touch

• Extreme sensitivity – Works with thick overlay materials (>5mm)

• Ultra-low power with programmable scan time – 100µA (typ) @ 195ms

• Smart auto-offset compensation – Eliminates fales triggers due to environmental

factors

• Support of buzzer for audible feedback

• Enhanced LED operation – 256-step intensity/fade-in/fade-out control – Auto-lightening without host interaction

• No external components per input

• Small footprint – 5.0mm x 5.0mm QFN-32 – 4.0mm x 4.0mm QFN-28

APPLICATIONS

• Home automation

• White goods

• Printers

• Notebook/netbook/portable/handheld computers

• Consumer products, instrumentation, automotive

• Mechanical button replacement

ULTRA-LOW

POWER

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Low Power, Touch Sensors with Proximity Sensing and LED Drivers

The superior sensitivity of the SX863x touch sensor platform enables sensing through a thick overlay material as well as proximity detection with an extended range all in a tiny footprint with zero components per input. The low power consumption and advanced, built-in LED drivers make it the ideal solution for a wide range of sensing applications in mobile phone, media players, notebooks and white goods.

FEATURES

• High resolution capacitive sensing solution – Proximity detection – Supports button, slider and wheel design

• Extreme sensitivity: – Works with thick overlay materials (>5mm) – Extremely low power with programmable scan time – 70µA (typ) @ 195ms

• Smart auto-offset compensation

• Eliminates false triggers due to environmental factors

• Enhanced LED operation

• Individual 256-step intensity (Lin. /Log.)

• Fade-in/Fade-out control

• Auto-lightening without host interaction

• No external components per input

• Ultra-small footprint – 4.0mm x 4.0mm QFN-28 – 5.0mm x 5.0mm QFN-32

APPLICATIONS

• LCD monitors

• Appliances

• Printers

• Automotive radio console

• Personall media players

• Set Top Box (STBs)

• Game consoles

• Industrial systems

RC Clock Generation

PWM LED Controller

Power Management and

RESET

GPIO / LED Interface

Micro Processor

RAM

ROM

NVM

SCL SDA IntbCP CN

Vdig Vana Vdd Resetb

GND x3

+V

SX863x

Plug & Play Functionality

Cap0

Cap1

Cap2

Cap3

Cap4

Cap5

Cap6

Cap7

Cap8

Cap9

Cap10

Cap11

GPIO0

GPIO1

GPIO2

GPIO3

GPIO4

GPIO5

GPIO6

GPIO7

AnalogFront End

and Sensor

Interface

10-Bit ADC

ProxSensor

I2C Interface

Buttons

Slider

>>>>>

Proximity

Touch Wheel

Enter

TOUCH BUTTON & PROXIMITY SOLUTIONS

Part NumberSensor Inputs

LED Driver (12 mA)

Interface Prox. Button Slider WheelMin. Scan

TimePower @ 195ms

Auto Comp.

Field Prog.Memory

Package (mm)

SX8633 12 8 I2C ü ü – – 15ms 80µA ü ü QFN (5x5)

SX8634 12 8 I2C ü ü ü – 15ms 80µA ü ü QFN (5x5)

SX8635 12 8 I2C ü ü – ü 15ms 80µA ü ü QFN (5x5)

SX8636 8 8 I2C ü ü – – 15ms 70µA ü ü QFN (4x4)

SX8638 8 8 I2C ü ü ü – 15ms 70µA ü ü QFN (4x4)

SX8639 8 8 I2C ü ü ü 15ms 70µA ü ü QFN (4x4)


ULTRA-LOW

POWER


Touchscreen Controller with Integrated Proximity Sensing and Haptics

Low Power Touchscreen Solutions

These fully integrated, haptics enabled resistive touchscreen controllers feature unique built-in proximity sensing circuitry, which enables proximity detection in applications where automatic system wake up or backlight LED dimming adjustments are required without the need for any additional components. The SX867x family can directly connect to an ERM or LRA Motor to create haptic feedback, thus eliminating the need for a dedicated µC interface. The SX867x family also supports various multi-touch gestures such as pinch, stretch and rotation on a regular 4-wire analog resistive touchscreen.

FEATURES

• Extremely low power consumption optimized for battery-powered devices

– 0.4µA @ 2.3V (Standby), 30µA @ 2.3V (8ksps)

• 12-bit Resolution with I2C Interface

• Best-in-Class on-chip ESD protection: Eliminates the needs for external components

– ±25kV Air Gap Discharge – ±15kV Contact Discharge – ±15kV HBM – ±2kV CDM – ±300V MM

• Built-in proximity sensing with any resistive panel (>5cm) – Automatic system/display wake up – 4/5 wire touch panel control (IR replacement)

• Integrated haptics motor control (LRA & ERM)

• Programmable setting time

• Enable multi-touch with low cost 4-wire touch panel

• Fully compatible with most 4-wire/5-wire resistive touchscreen

• Ultra-small footprint – 2.07mm x 2.07mm WLCSP-19 – 4.0mm x 4.0mm QFN-20

APPLICATIONS

• Portable navigation device

• Automotive center console

• Digital photo frame

• DSC

• Digital video camera

• Handheld games

• Mobile

• POS terminals

WORLD’S

FIRST

www.semtech.com 11

LOW POWER TOUCHSCREEN SOLUTIONS

Part NumberPower

ConsumptionOn-chip ESD Protection

Digital Filter

Multi-touchProximity Sensing

Haptics Package (mm)

SX8674 0.4µA±25kV Air

ü ü ü GenericWLCSP (2.07x2.07)

±15kV Contact QFN (4x4)


ü ü – GenericWLCSP (2.07x2.07)



ü ü ü –WLCSP (2.07x2.07)



ü ü ü ImmersionWLCSP (2.07x2.07)



ü ü – ImmersionWLCSP (2.07x2.07)


M

HOSTResistive

Touchscreen

RPULL x4

CMOUT

TOUCHSCREEN /PROXIMITY SENSING

INTERFACE

POR32K

& 1.8 MHz OSC

HOSTI/F

ANALOGSENSING12 Bit ADC

X+/BR

Y+/TR

X-/TL

Y-/BLSCL

SDA

NIRQ

NRST

HAPTICSINTERFACE

CTRL

MOUTP

MOUTN

ADDR

LDO

MVDD

MGND

AUX1/WIPER

AUX2

MIN

AUX3

TEMP SENSOR

PROX

DIGITAL PROCESSING

SX8674

VDD

GND

VREG

HOST


Figure 5. SX8653 with a 4-wire touch screen

VDD

X+/BR

Y+/TR

X-/TL

Y-/BL

DIN

NIRQ

SCLK

DOUT

GND

Control

SPI

Digital FilterADC

OSC

POR

NCS

AUX/WIPER

VDD

NRST (DFN only)

HOST

INT

DIO

CS

SCLK

MISO

MOSI

4-wire touchscreen

SX8653

SPIInterfaceref+

ref-in out

Touch Screen

Interface

Vref

LOW POWER TOUCHSCREEN SOLUTIONS

Part NumberTouch Panel

Power Consumption

On-chip ESD Protection

Digital Filter

Programmable Settling Time

Multi-touch Package (mm)

SX8650 4-wire 0.4µA±25kV Air

ü ü –WLCSP (1.46x1.96)

±15kV Contact DFN (3x3)

SX8651 4-wire 0.4µA±25kV Air

ü ü üWLCSP (1.46x1.96)


SX8652 4/5-wire 0.4µA±25kV Air

ü ü –WLCSP (1.46x1.96)


SX8653 4/5-wire 0.4µA±25kV Air

ü ü üWLCSP (1.46x1.96)



Touchscreen Controller with +/-15kV ESD Protection & Multi-touch

Semtech’s ultra-low power, resistive touchscreen controller family provides the best-in-class on-chip ESD protection as well as multi-touch capability on a resistive panel. An extremely small footprint makes these controllers ideal for portable applications where power consumption and board-space are at a premium. The SX8651/53 also enables various multi-touch gestures such as pinch, stretch and rotation on a regular 4-wire analog resistive touchscreen.

FEATURES

• Extremely low power consumption optimized for battery-powered devices

– 0.4µA @ 2.3V (Standby), 30µA @ 2.3V (8ksps)

• 12-bit Resolutions with I2C Interface

• Best-in-Class on-chip ESD protection: Eliminates the need for external components

– ±25kV air gap discharge / ±15kV contact discharge – ±15kV HBM / ±2kV CDM / ±300V MM

• Equivalent throughput up to 50ksps

• Enable multi-touch gestures with low cost 4-wire analog resistive touch panel

• Built-in programmable settling time and digital filter reduces host processing overhead and bus loading

• Ultra-small footprint – 1.46mm x 1.96mm WLCSP-12 – 3.0mm x 3.0mm DFN-12 – 4.0mm x 3.0mm DFN-14

APPLICATIONS

• Portable navigation device

• Automotive center console

• Digital photo frame

• Digital video camera and DSC

• Handheld games

• Mobile

• POS terminals

Semtech and the Semtech logo are registered marks of Semtech Corporation. All other trademarks and trade names mentioned may be marks and names of their respective companies. Semtech reserves the right to make changes to, or discontinue any products described in this document without further notice. Semtech makes no warranty, representation or guarantee,

express or implied, regarding the suitability of its products for any particular purpose. ©2017 Semtech Corporation. All rights reserved. SmartSenSG17

200 Flynn Road, Camarillo, California 93012 • phone: (805) 498-2111 • fax: (805) 498-3804

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