MAX4574 Maxim, MAX4574 Datasheet

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MAX4574

Manufacturer Part Number
MAX4574
Description
The MAX4571–MAX4574 serial-interface controlled switches are ideal for multimedia applications
Manufacturer
Maxim
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
MAX4574EEI+
Manufacturer:
Maxim Integrated Products
Quantity:
135
Part Number:
MAX4574EEI+
Manufacturer:
MAX
Quantity:
100
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
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.
Set-Top Boxes
PC Multimedia Boards
19-1404; Rev 1; 4/99
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.
Pin Configurations continued at end of data sheet.
( ) ARE FOR MAX4573
TOP VIEW
2
COM1
COM2
COM3
COM4
COM5
COM6
COM7
C™-compatible serial interface. The
NO1
NO2
NO3
NO4
NO5
NO6
NO7
________________________________________________________________ Maxim Integrated Products
10
11
12
13
14
1
2
3
4
5
6
7
8
9
QSOP/SSOP/SO
MAX4571/MAX4573
General Description
Pin Configurations
Audio Systems
Video Conferencing Systems
Applications
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V+
SDA (DOUT)
SCL (DIN)
A1 (SCLK)
A0 (CS)
GND
NO8
COM8
NO9
COM9
NO10
COM10
NO11
COM11
Serially Controlled, Clickless
I
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
2
MAX4571CEI
MAX4571CAI
MAX4571CWI
MAX4571EEI
MAX4571EAI
MAX4571EWI
MAX4572CEI
MAX4572CAI
MAX4572CWI
MAX4572EEI
MAX4572EAI
MAX4572EWI
MAX4573CEI
MAX4573CAI
MAX4573CWI
MAX4573EEI
MAX4573EAI
MAX4573EWI
MAX4574CEI
MAX4574CAI
MAX4574CWI
MAX4574EEI
MAX4574EAI
MAX4574EWI
C is a trademark of Philips Corp.
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
Single-Supply Operation from +2.7V to +5.25V
Audio/Video Switches
2-Wire, Fast-Mode, I
3-Wire, SPI/QSPI/MICROWIRE-Compatible
(MAX4573/74)
PART
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Ordering Information
2
C-Compatible (MAX4571/72)
PIN-PACKAGE
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
Features
1

Related parts for MAX4574

MAX4574 Summary of contents

Page 1

... The MAX4571/MAX4573 contain eleven SPST switches, while the MAX4572/MAX4574 contain two SPST switch- es and six SPDT switches. The MAX4571/MAX4572 fea- 2 ture a 2-wire, I C™-compatible serial interface. The MAX4573/MAX4574 feature a 3-wire, SPI™ ...

Page 2

... Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS— ...

Page 3

... 5kΩ 35pF A MIN 1.5V +25° 300Ω 35pF A MIN L MAX4572/MAX4574 1.5V MIN MAX 1.5V 5kΩ 35pF +25° 1.5V 300Ω +25° ...

Page 4

Serially Controlled, Clickless Audio/Video Switches ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued) (V+ = +3V ±10 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL On-Resistance R FLAT Flatness (Note 5) NO_ ...

Page 5

I/O INTERFACE CHARACTERISTICS (V+ = +2.7V to +5.25V MIN MAX PARAMETER SYMBOL CS, SCL, SDA, A0, A1) DIGITAL INPUTS (SCLK, DIN, Input Low Voltage V Input High Voltage V Input Hysteresis V HYST Input ...

Page 6

... Note 10: Leakage testing for single-supply operation is guaranteed by testing with a single +5.25V supply. Note 11 capacitance of one bus line in pF. Tested with C b Note 12: Typical values are for MAX4573/MAX4574 devices. (V+ = +5V +25°C, unless otherwise noted.) A ON-RESISTANCE vs. V ...

Page 7

A TOTAL HARMONIC DISTORTION + NOISE vs. FREQUENCY 1 600 IN AND OUT SIGNAL = 1V RMS 0.1 0.01 10 100 1000 10,000 100,000 FREQUENCY (Hz) ON/OFF TIMES (SOFT MODE) CS 5V/div ...

Page 8

... LSB + 2 of 2-Wire Serial Interface Address Field SCL SCL Clock Input of 2-Wire Serial Interface SDA SDA Data Input of 2-Wire Serial Interface V+ V+ Positive Supply Voltage NAME MAX4574 – Normally Open Terminals – NO1A–NO4A Normally Open Terminals – NO1B–NO4B Normally Open Terminals – NO5, NO8 ...

Page 9

... SIGNAL GENERATOR 0dBm b) Crosstalk 3V SCL V OUT 2-Wire V OUT V OUT 300 35pF OUT 3-Wire V OUT MAX4571 MAX4572 V+ 10nF MAX4573 MAX4574 V+ NO1 COM1 2 DECODER/ CONTROLLER NO2 COM2 GND ACKNOWLEDGE BIT t < 20ns r 50% t < 20ns f 0 0.9 V • OUT 0.1 V • ...

Page 10

... MAX4573/ MAX4574 feature a 3-wire, SPI/QSPI/MICROWIRE-com- patible serial interface. Applications Information The MAX4571–MAX4574 have a common command and control-bit structure, the differences being only in the interface type (2-wire or 3-wire) and in the switch configurations. The SWITCHSET command controls the open/closed states of the various switches ...

Page 11

... SDA from low to high while SCL is high. The bus is then free for another transmission. 3-Wire Serial Interface The MAX4573/MAX4574 use a 3-wire SPI/QSPI/ MICROWIRE-compatible serial interface. An active-low chip-select pin, CS, enables the device to receive data from the serial input pin, DIN. Command and data infor- mation are clocked in on the rising edge of the serial- clock signal (SCLK) MSB first ...

Page 12

Serially Controlled, Clickless Audio/Video Switches Table 3. 2-Wire Serial-Interface Data Format RESET Command Address Byte MSB SWITCHSET Command Address Byte MSB ...

Page 13

... START CONDITION Figure 4. A Complete 2-Wire Serial-Interface Transmission ______________________________________________________________________________________ Serially Controlled, Clickless Audio/Video Switches MAX4573 (11 SPST) SWITCH CONTROL D10 SW11 SW10 SW9 SW8 SW7 MAX4574 (6 SPDT + 2 SPST) SWITCH CONTROL D10 SW7A SW6B SW6A SW4B SW4A 70% 20 ...

Page 14

... DOUT of the first device to DIN of the second, etc. Connect the CS pins of all devices together. Data are shifted through the MAX4573/ MAX4574s in series. When CS is brought high, all devices are updated simultaneously. If any of the devices in the chain are to be left unchanged, use a NO_OP command for that device, as shown in Table 1 ...

Page 15

... NO1B 3 NO2A 4 COM2 5 NO2B 6 NO3A 7 COM3 8 NO3B 9 NO4A 10 COM4 11 NO4B 12 NO5 13 COM5 14 QSOP/SSOP/ ARE FOR MAX4574 ______________________________________________________________________________________ Serially Controlled, Clickless Audio/Video Switches ___________________Chip Information TRANSISTOR COUNT: 5397 SDA (DOUT) 26 SCL (DIN (SCLK (CS) 23 GND 22 NO6A 21 COM6 20 NO6B 19 NO7A ...

Page 16

... Serially Controlled, Clickless Audio/Video Switches Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

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