General Description

The MAX11041 wired remote controller converts up to

with low-cost pushbutton switches and 1% resistors,

the MAX11041 is a total solution over a single-wire

interface. A wired remote controller easily piggybacks

to a standard 3.5mm headphone jack using a fourth

contact or one of the audio signals.

To conserve battery life, the MAX11041 consumes only

5µA (typ) while reading keypresses in real time without

microprocessor (µP) polling. The device sends the

debounced keypress along with key duration to the

FIFO buffer records up to four keypress events to allow

plenty of time for the application processor to respond

to the MAX11041.

The MAX11041 includes ±15kV ESD protection devices

on the FORCE and SENSE inputs to ensure IEC 61000-4-2

compliance without any external ESD devices.

The MAX11041 is available in a 12-pin TQFN package.

The device is specified over the extended temperature

range (-40°C to +85°C).

Applications

Features

o Detect Up to 30 Different Keys and Jack

Insertion/Removal

o Works with Either 32Ω or 16Ω Headphones

o Adds Remote-Control Functionality to Devices

Using a Simple Resistor and Switch Array

o Low-Power Operation Consuming a Supply

Current of Only 5µA (typ)

o Works with Standard 2.5mm or 3.5mm 4-Pin

Headphone Jacks

o Supports Hold Function to Lockout Keys

o Single 1.6V to 3.6V Supply Voltage Range

o ±15kV ESD Protection (IEC 61000-4-2)

Wired Remote Controller

________________________________________________________________

Maxim Integrated Products

1

19-3984; Rev 3; 1/10

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.

12

11

10

4

5

6

12

3

98

7

FORCE

A0

A1

N.C.

MAX11041

INT

THIN QFN

(4mm x 4mm x 0.6mm)

+

TOP VIEW

EXPOSED PAD CONNECTED TO GND.

Pin Configuration

Ordering Information

*

EP = Exposed pad.

+

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

Multimedia Controls for

Multimedia-Enabled

Cell Phones

Keyboard Encoder for

Slider, Flip, and other

Cell Phones

Portable Media Players

MP3, CD, DVD Players

PDAs

Digital Still Cameras

PDA Accessory

Keyboards

Multimedia Desktop

Speakers

Portable Game

Consoles

PART

TEMP RANGE

PIN-PACKAGE

MAX11041ETC+

-40°C to +85°C

12 TQFN-EP*