MAX11811 Maxim Integrated Products, MAX11811 Datasheet

MAX11811

Manufacturer Part Number

MAX11811

Description

(MAX11810 / MAX11811) Advanced Touch Interface Solution

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX11811.pdf (3 pages)

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MAX11811ETP+

Manufacturer:

Maxim

Quantity:

393

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XX-XXXX; Rev 0; 7/09

Advanced Touch Interface Solution with Haptic

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.

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.

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

interrupt generation engine, which enables servicing the

part only when needed. The register map is compatible

with that of the MAX11800/MAX11801.

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.

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.

SPI is a trademark of Motorola, Inc.

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.

Mobile Communication Devices

PDA, GPS, Media Players,

Devices

POS Terminals and Financial Terminals

Automotive Center Consoles

Handheld Games

Controller plus Driver and Proximity Sensing

portable

_______________________________________________________________ Maxim Integrated Products 1

applications. Also included is a smart

General Description

Portable

Applications

Navigation

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.

S 4-Wire Resistive Touch-Screen Interface

S X and Y Coordinate and Touch Pressure

S Ratiometric Measurement

S 12-Bit SAR ADC

S Single 1.7V to 3.6V Supply

S Integrated Haptic Controller Driver for ERM and

S Integrated Proximity Sensing System

S General-Purpose Current DAC Output and

S PWM Output for Piezo Drivers

S Data Tagging Provides Measurement and Touch

S Data Filtering Provides Noise Reduction

S Aperture Mode Provides Spatial Filtering

S Digital Preprocessing Reduces Serial Bus Activity

S Programmable Touch Detect Pullup Resistor

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

S 25MHz SPI Interface (MAX11810)

S 400kHz I

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

S Low-Power Operation

MAX11810ETP+*

MAX11810EWE+*

MAX11811ETP+*

MAX11811EWE+*

Measurement

LRA Motors

General-Purpose Input

Event Information

and Interrupt Generation

Operation

20-Pin TQFN Packages

246µW at V

698µW at V

PART

C Interface (MAX11811)

= 1.8V, 34.4ksps

= 3.6V, 34.4ksps

Ordering Information

PIN-PACKAGE

20 TQFN-EP**

16 WLP

20 TQFN-EP**

16 WLP

Features

INTERFACE

SERIAL

I 2 C

SPI

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