MAX11810EWE+ [MAXIM]

Micro Peripheral IC;


型号：	MAX11810EWE+
厂家：	MAXIM INTEGRATED PRODUCTS
描述：	Micro Peripheral IC
文件：	总3页 (文件大小：329K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

XX-XXXX; Rev 0; 7/09

Advanced Touch Interface Solution with Haptic

Controller plus Driver and Proximity Sensing

General Description

Features

S 4-Wire Resistive Touch-Screen Interface

The MAX11810/MAX11811 low-power touch interface

solutions operate from a single supply of 1.7V to 3.6V,

targeting power-sensitive applications such as handheld

equipment. The MAX11810/MAX11811 include a 4-wire

resistive touch-screen controller, a haptic motor control-

ler plus driver, and IR proximity-sensing system.

S X and Y Coordinate and Touch Pressure

Measurement

S Ratiometric Measurement

S 12-Bit SAR ADC

S Single 1.7V to 3.6V Supply

The devices contain a 12-bit SAR ADC and a multiplexer

to interface with a 4-wire resistive touch-screen panel. A

digital serial interface provides communications.

S Integrated Haptic Controller Driver for ERM and

LRA Motors

S Integrated Proximity Sensing System

The MAX11810/MAX11811 contain an advanced state

machine, which performs digital preprocessing of the

touch-screen measurements, reducing bus loading

and application-processor resource requirements. The

MAX11810/MAX11811 enter low-power modes automati-

cally between conversions to save power, making them

ideal for portable applications. Also included is a smart

interrupt generation engine, which enables servicing the

part only when needed. The register map is compatible

with that of the MAX11800/MAX11801.

S General-Purpose Current DAC Output and

General-Purpose Input

S PWM Output for Piezo Drivers

S Data Tagging Provides Measurement and Touch

Event Information

S Data Filtering Provides Noise Reduction

S Aperture Mode Provides Spatial Filtering

S Digital Preprocessing Reduces Serial Bus Activity

In addition, the MAX11810/MAX11811 have a built-in hap-

tic controller plus driver to either drive a vibration motor

directly, or to interface with an external piezo driver. The

built-in haptic waveform generator generates > 50,000

haptic patterns, which are configured through the serial

interface. This eliminates the need for a dedicated inter-

face on the applications processor/microcontroller end.

and Interrupt Generation

S Programmable Touch Detect Pullup Resistor

S Auto Power-Down Control for Ultra-Low-Power

Operation

S 25MHz SPI Interface (MAX11810)

S 400kHz I C Interface (MAX11811)

They also contain a general-purpose current DAC output

and voltage input. The DAC output can drive IR and vis-

ible LEDs; the input can connect to either a photo-detec-

tor for proximity sensing, or an ambient light sensor.

S 2.1mm x 2.1mm, 16-Pin WLP and 4mm x 4mm,

20-Pin TQFN Packages

S Low-Power Operation

246µW at V

698µW at V

= 1.8V, 34.4ksps

= 3.6V, 34.4ksps

Applications

Mobile Communication Devices

Ordering Information

PDA, GPS, Media Players, Portable Navigation

Devices

SERIAL

PIN-PACKAGE

PART

POS Terminals and Financial Terminals

Automotive Center Consoles

Handheld Games

INTERFACE

MAX11810ETP+*

MAX11810EWE+*

MAX11811ETP+*

MAX11811EWE+*

20 TQFN-EP**

16 WLP

SPI

20 TQFN-EP**

16 WLP

I C

Note: All devices are specified over the -40°C to +85°C operating

temperature range.

+Denotes a lead(Pb)-free/RoHs-compliant package.

*Future product––contact factory for availability.

**EP = Exposed pad.

SPI is a trademark of Motorola, Inc.

_______________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Advanced Touch Interface Solution with Haptic

Controller plus Driver and Proximity Sensing

Pin Configurations

MAX11810

MAX11811

TOP VIEW

A0/CSB

TIRQB

GPI

X+

Y+

X-

Y-

15 A0/CSB

14 SCL/CLK

13 SDA/DIN

12 A1/DOUT

SCL/CLK PIRQB

A1/DOUT SDA/DIN

Y+

X-

MAX11810

MAX11811

Y-

D-

GPO

GND

D+

16 WLP

20 THIN QFN

Pin Description

NAME

FUNCTION

TQFN

WLP

––

Y+

X-

Y+ Channel Input from TS

X- Channel Input from TS

Y- Channel Input from TS

Y-

4, 5

Power Supply (Used as ADC reference)

Haptic Driver Positive Output

D+

D-

Haptic Driver Negative Output

Ground

8, 9

10, 16

GND

N.C.

No Connection

––

GPO

General-Purpose Output (IR LED Driver)

I²C Address Input Bit 1/SPI Data Output Bus

I²C Serial Data Bus/SPI Serial Data Input Bus

I²C Serial Data Clock/SPI Serial Data Clock

I²C Address Input Bit 0/Chip-Select Bar for SPI

Proximity Interrupt Output Bar

Touch Interrupt Output Bar

A1/DOUT

SDA/DIN

SCL/CLK

A0/CSB

PIRQB

TIRQB

GPI

General-Purpose Input (IR Photo-Diode Input)

X+ Channel Input from TS

X+

Exposed Pad

______________________________________________________________________________________

Advanced Touch Interface Solution with Haptic

Controller plus Driver and Proximity Sensing

Functional Diagram

TIRQB

INTERRUPT

CONTROL

POWER AND BIAS

PIRQB

SAR

STATE

MACHINE

ADC

CONTROL

SERIAL INTERFACE

PHYSICAL LAYER

(ANALOG SIF)

DOUT/A1

A0/CSB

INTERNAL

CLOCK

X+

X-

Y+

Y-

SCREEN

INTERFACE

MUX

SIF

PHY

SAR

ADC

SCL/CLK

SDA/DIN

GPI

IR PD

INTERFACE

MAX11810

MAX11811

DATA

REGISTERS

GPO

DAC

D+

D-

PATTERNS

MOTOR CONTROL

MOTOR DRIVER

GND

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.

Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

2009 Maxim Integrated Products

Maxim is a registered trademark of Maxim Integrated Products, Inc.

MAX11810EWE+ [MAXIM]

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