MAX458 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – 8x4 Video Crosspoint Switches with Buffers

19-0258; Rev 2; 4/95
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8x4 Video Crosspoint Switches with Buffers
_______________General Description
The MAX458/MAX459 are crosspoint switches with eight
input channels and four high-speed, buffered output
channels. The MAX458 output buffer is configured with a
gain of one, while the MAX459 buffer has a gain of two. In
each device, any one of eight input lines can be connect-
ed to any of four output amplifiers. The output buffers are
capable of driving loads of 75Ω.
Data interface can be accomplished by either a 16-bit
serial or a 6-bit parallel connection. In the serial mode,
the MAX458/MAX459 are SPI^TM, QSPI^TM, and Microwire^TM
compatible. In parallel mode, the MAX458/MAX459 are
compatible with most microprocessor buses. Three-state
amplifier output capability makes it possible to multiplex
MAX458/MAX459s to form larger switch networks. The
output buffers can be disabled individually or the entire
device can be shut down to conserve power.
________________________Applications
Video Test Equipment
Video Security Systems
Video Editing
_____________________Block Diagram
____________________________Features
o 100MHz Unity-Gain Bandwidth
o 300V/µs Slew Rate
o Low 0.05° Differential Phase Error
o Low 0.01% Differential Gain Error
o Directly Drives 75Ω Cables
o Fast 60ns Switching Time
o High-Z Amplifier Output Capability
o Shutdown Capability
o 16-Bit Serial and 6-Bit Parallel Address Modes
o 40-Pin DIP and 44-Pin PLCC Packages
______________Ordering Information
PART
MAX458CPL
MAX458CQH
MAX458EPL
MAX459CPL
MAX459CQH
MAX459EPL
TEMP. RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
40 Plastic DIP
44 PLCC
40 Plastic DIP
40 Plastic DIP
44 PLCC
40 Plastic DIP
_________________Pin Configurations
8 BUFFERED
8x4
4 75Ω
INPUTS SWITCH ARRAY OUTPUT DRIVERS
MAX459
IN0
75Ω
GND
IN1
75Ω _GND
IN2
75Ω
GND
IN3
75Ω _GND
IN4
75Ω _GND
IN5
75Ω
GND
IN6
75Ω _GND
IN7
75Ω
GND
8x4
SWITCH
ARRAY
75Ω
AV = 2
GND
75Ω
AV = 2
GND
75Ω
AV = 2
GND
75Ω
AV = 2
GND
SERIAL OR PARALLEL
DIGITAL INTERFACE
& CONTROL
OUT0
75Ω
OUT1
75Ω
OUT2
75Ω
OUT3
75Ω
TOP VIEW
6 5 4 3 2 1 44 43 42 41 40
IN1 7
GND 8
IN2 9
GND 10
IN3 11
V_CC 12
IN4 13
VEE 14
IN5 15
GND 16
IN6 17
MAX458
MAX459
39 GND
38 OUT0
37 GND
36 OUT1
35 V_CC
34 OUT2
33 V_EE
32 N.C.
31 OUT3
30 GND
29 A0
18 19 20 21 22 23 24 25 26 27 28
SERIAL/PARALLEL INTERFACE
(SPI™, QSPI™, MICROWIRE™ COMPATIBLE)
DIP on last page.
PLCC
™ _{SPI and QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor Corp.}
_______________________________________________________________ Maxim Integrated Products 1
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