19-1521; Rev 0; 8/99
Serially Controlled
Audio/Video Switches
/MAX485
General Description
Features
♦ +2.7V to +5.5V Single-Supply Operation
♦ SPST and SPDT Switches
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
65Ω on-resistance, 4Ω on-resistance matching
between channels, and 5Ω 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.
♦ 65Ω (max) R
with +5V Supply
ON
♦ Audio Performance
-83dB Off-Isolation at 20kHz
-84dB Crosstalk at 20kHz
♦ Video Performance
-48dB Off-Isolation at 10MHz
-60dB Crosstalk at 10MHz
The MAX4584 uses a 2-wire I2C™-compatible serial
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.
♦ Serial Interface
2-Wire I2C Compatible (MAX4584)
3-Wire SPI/QSPI/MICROWIRE Compatible
(MAX4585)
Ordering Information
Applications
PART
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
Cellular Phones and Accessories
Private Mobile Radios (PMRs)
PC Multimedia Audio/Video Routing
Industrial Equipment
MAX4584EUB
MAX4585EUB
10 µMAX
Set-Top Boxes
Video Conferencing
Pin Configuration/
Functional Diagram
High-End Audio Equipment
TOP VIEW
MAX4584
MAX4585
COM1
A (CS)
1
2
3
4
5
10 NO1A
9
8
7
6
NO1B
GND
SDA (DIN)
V+
COM2
NO2
SCL (SCLK)
µMAX
2
I C is a trademark of Philips Corp.
( ) ARE FOR MAX4585 ONLY.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ Maxim Integrated Products
1
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For small orders, phone 1-800-835-8769.