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General Description

The MAX4584/MAX4585 serial-interface, programmable

switches are ideal for multimedia applications. Each

device contains one normally open (NO) single-pole/

single-throw (SPST) switch and one single-pole/double-

throw (SPDT) switch. The MAX4584/MAX4585 feature

65

Ω on-resistance, 4Ω on-resistance matching

between channels, and 5

Ω on-resistance flatness.

Additionally, they have off-isolation of -83dB at 20kHz

and -48dB at 10MHz, with crosstalk of -84dB at 20kHz

and -60dB at 10MHz.

interface; the MAX4585 uses a 3-wire SPI™/QSPI™/

MICROWIRE™-compatible interface. Both devices are

available in a 10-pin µMAX package and are specified

for the extended-industrial (-40°C to +85°C) temperature

range.

Applications

Cellular Phones and Accessories

Private Mobile Radios (PMRs)

PC Multimedia Audio/Video Routing

Industrial Equipment

Set-Top Boxes

Video Conferencing

High-End Audio Equipment

Features

o +2.7V to +5.5V Single-Supply Operation

o SPST and SPDT Switches

o 65

o Audio Performance

-83dB Off-Isolation at 20kHz

-84dB Crosstalk at 20kHz

o Video Performance

-48dB Off-Isolation at 10MHz

-60dB Crosstalk at 10MHz

o Serial Interface

3-Wire SPI/QSPI/MICROWIRE Compatible

(MAX4585)

Serially Controlled

Audio/Video Switches

________________________________________________________________

Maxim Integrated Products

1

10

9

8

7

6

1

2

3

4

5

NO1A

NO1B

COM2

( ) ARE FOR MAX4585 ONLY.

NO2

SCL (SCLK)

V+

SDA (DIN)

A (CS)

COM1

TOP VIEW

GND

MAX4584

MAX4585

µMAX

19-1521; Rev 0; 8/99

PART

MAX4584EUB

MAX4585EUB

-40°C to +85°C

-40°C to +85°C

TEMP. RANGE

PIN-PACKAGE

10 µMAX

10 µMAX

Ordering Information

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

Pin Configuration/

Functional Diagram