I
2
C is a trademark of Philips Corp.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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General Description
The MAX4571–MAX4574 serial-interface controlled
switches are ideal for multimedia applications. Each
device features 35Ω max on-resistance, -90dB audio
off-isolation at 20kHz, -60dB video off-isolation at
1.0MHz, and “clickless” mode operation for audio
applications.
The MAX4571/MAX4573 contain eleven SPST switches,
while the MAX4572/MAX4574 contain two SPST switch-
es and six SPDT switches. The MAX4571/MAX4572 fea-
ture a 2-wire, I
2
C™-compatible serial interface. The
MAX4573/MAX4574 feature a 3-wire, SPI™/QSPI™/
MICROWIRE™-compatible serial interface. All four
parts are available in 28-pin QSOP, SSOP, and wide
SO packages and operate over the commercial and
extended temperature ranges.
Applications
Set-Top Boxes Audio Systems
PC Multimedia Boards Video Conferencing Systems
Features
♦ Selectable Soft Switching Mode for “Clickless”
Audio Operation
♦ 35Ω max On-Resistance
♦ -90dB Audio Off-Isolation at 20kHz
-50dB Video Off-Isolation at 10MHz
♦ -90dB Audio Crosstalk at 20kHz
-52dB Video Crosstalk at 10MHz
♦ Serial Interface
2-Wire, Fast-Mode, I
2
C-Compatible (MAX4571/72)
3-Wire, SPI/QSPI/MICROWIRE-Compatible
(MAX4573/74)
♦ Single-Supply Operation from +2.7V to +5.25V
MAX4571–MAX4574
Serially Controlled, Clickless
Audio/Video Switches
________________________________________________________________
Maxim Integrated Products
1
19-1404; Rev 1; 4/99
PART
MAX4571CEI
MAX4571CAI
MAX4571CWI 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
28 QSOP
28 SSOP
28 Wide SO
Pin Configurations
Ordering Information
MAX4571EEI -40°C to +85°C 28 QSOP
MAX4571EAI -40°C to +85°C 28 SSOP
MAX4571EWI -40°C to +85°C 28 Wide SO
MAX4572CEI
0°C to +70°C 28 QSOP
MAX4572CAI 0°C to +70°C 28 SSOP
MAX4572CWI 0°C to +70°C 28 Wide SO
MAX4572EEI -40°C to +85°C 28 QSOP
MAX4572EAI -40°C to +85°C 28 SSOP
MAX4572EWI -40°C to +85°C 28 Wide SO
MAX4573CEI
0°C to +70°C 28 QSOP
MAX4573CAI 0°C to +70°C 28 SSOP
MAX4573CWI 0°C to +70°C 28 Wide SO
MAX4573EEI -40°C to +85°C 28 QSOP
MAX4573EAI -40°C to +85°C 28 SSOP
MAX4573EWI -40°C to +85°C 28 Wide SO
MAX4574CEI
0°C to +70°C 28 QSOP
MAX4574CAI 0°C to +70°C 28 SSOP
MAX4574CWI 0°C to +70°C 28 Wide SO
MAX4574EEI -40°C to +85°C 28 QSOP
MAX4574EAI -40°C to +85°C 28 SSOP
MAX4574EWI -40°C to +85°C 28 Wide SO
Pin Configurations continued at end of data sheet.