19-1404; Rev 1; 4/99
S e ria lly Co n t ro lle d , Clic k le s s
Au d io /Vid e o S w it c h e s
1–MAX574
Ge n e ra l De s c rip t io n
Fe a t u re s
The MAX4571–MAX4574 s e ria l-inte rfa c e c ontrolle d
switches are ideal for multimedia applications. Each
device features 35Ω max on-resistance, -90dB audio
off-is ola tion a t 20kHz, -60d B vid e o off-is ola tion a t
1.0MHz, a nd “c lic kle s s ” mod e op e ra tion for a ud io
applications.
♦ Selectable Soft Switching Mode for “Clickless”
Audio Operation
♦ 35Ω max On-Resistance
♦ -90dB Audio Off-Isolation at 20kHz
-50dB Video Off-Isolation at 10MHz
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, I2C™-compatible serial interface. The
MAX4573/MAX4574 feature a 3-wire, SPI™/QSPI™/
MICROWIRE™-c omp a tib le s e ria l inte rfa c e . All four
parts are available in 28-pin QSOP, SSOP, and wide
SO packages and operate over the commercial and
extended temperature ranges.
♦ -90dB Audio Crosstalk at 20kHz
-52dB Video Crosstalk at 10MHz
♦ Serial Interface
2
2-Wire, Fast-Mode, I C-Compatible (MAX4571/72)
3-Wire, SPI/QSPI/MICROWIRE-Compatible
(MAX4573/74)
♦ Single-Supply Operation from +2.7V to +5.25V
Ord e rin g In fo rm a t io n
Ap p lic a t io n s
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
28 QSOP
Set-Top Boxes
Audio Systems
MAX4571CEI
MAX4571CAI
MAX4571CWI
MAX4571EEI
MAX4571EAI
MAX4571EWI
MAX4572CEI
MAX4572CAI
MAX4572CWI
MAX4572EEI
MAX4572EAI
MAX4572EWI
MAX4573CEI
MAX4573CAI
MAX4573CWI
MAX4573EEI
MAX4573EAI
MAX4573EWI
MAX4574CEI
MAX4574CAI
MAX4574CWI
MAX4574EEI
MAX4574EAI
MAX4574EWI
PC Multimedia Boards
Video Conferencing Systems
28 SSOP
28 Wide SO
28 QSOP
P in Co n fig u ra t io n s
28 SSOP
28 Wide SO
28 QSOP
TOP VIEW
28 SSOP
MAX4571/MAX4573
28 Wide SO
28 QSOP
NO1
COM1
NO2
1
2
3
4
5
6
7
8
9
28 V+
28 SSOP
27 SDA (DOUT)
26 SCL (DIN)
25 A1 (SCLK)
24 A0 (CS)
23 GND
28 Wide SO
28 QSOP
COM2
NO3
28 SSOP
28 Wide SO
28 QSOP
COM3
NO4
28 SSOP
22 NO8
28 Wide SO
28 QSOP
COM4
NO5
21 COM8
20 NO9
28 SSOP
COM5 10
NO6 11
19 COM9
18 NO10
28 Wide SO
28 QSOP
COM6 12
NO7 13
17 COM10
16 NO11
28 SSOP
28 Wide SO
COM7 14
15 COM11
2
QSOP/SSOP/SO
I C is a trademark of Philips Corp.
( ) ARE FOR MAX4573
SPI/QSPI are trademarks of Motorola, Inc.
Pin Configurations continued at end of data sheet.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.