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MICROWIRE is a trademark of National Semiconductor Corp.

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General Description

The MAX4562/MAX4563 serial-interface controlled

switches are ideal for multimedia applications. Each

device features 30

match, and 5

crosstalk at 20kHz is -85dB, and video off-isolation and

crosstalk at 10MHz is -55dB. Both devices feature

“clickless” mode operation for audio applications.

The MAX4562/MAX4563 contain two normally open sin-

gle-pole/double-throw (SPDT) switches and two normal-

ly open single-pole/single-throw (SPST) switches. The

interface. The MAX4563 features a 3-wire SPI™/QSPI™/

MICROWIRE™-compatible serial interface. Both parts

are available in 16-pin QSOP packages and operate

over the commercial and extended temperature

ranges.

Applications

Set-Top Boxes

PC Multimedia Boards

Audio Systems

Video Conferencing Systems

Features

o Selectable Soft-Switching Mode for “Clickless”

Audio Operation

o 30

Ω max On-Resistance

o Audio Performance

-85dB Off-Isolation at 20kHz

-85dB Crosstalk at 20kHz

-0.007% THD

o Video Performance

-55dB Off-Isolation at 10MHz

-55dB Crosstalk at 10MHz

o T-Switch Configurable for Improved Off-Isolation

o Serial Interface

3-Wire SPI/QSPI/MICROWIRE-Compatible

(MAX4563)

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

Serially Controlled, Clickless

Audio/Video Switches

________________________________________________________________

Maxim Integrated Products

1

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

SCL (SCLK)

SDA (DIN)

A1 (DOUT)

COM4

( ) ARE FOR MAX4563

NO3

NO4

COM3

NO2B

COM2

NO2A

GND

NO1B

COM1

NO1A

V+

QSOP

TOP VIEW

MAX4562

MAX4563

A0 (CS)

19-1461; Rev 0; 4/99

PART

MAX4562CEE

MAX4562EEE

MAX4563CEE

0°C to +70°C

-40°C to +85°C

0°C to +70°C

TEMP. RANGE

PIN-PACKAGE

16 QSOP

16 QSOP

16 QSOP

Pin Configuration

Ordering Information

MAX4563EEE

-40°C to +85°C

16 QSOP

Typical Operating Circuit

SIGNAL OUT

SIGNAL IN

COM3

NO3

NO2B

NO2A

COM2