19-0258; Rev 2; 4/95
8 x 4 Vid e o Cro s s p o in t S w it c h e s w it h Bu ffe rs
8/MAX459
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
♦ 100MHz Unity-Gain Bandwidth
♦ 300V/µs Slew Rate
♦ Low 0.05° Differential Phase Error
♦ Low 0.01% Differential Gain Error
♦ Directly Drives 75Ω Cables
♦ Fast 60ns Switching Time
♦ High-Z Amplifier Output Capability
♦ Shutdown Capability
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 SPITM, QSPITM, and MicrowireTM
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.
♦ 16-Bit Serial and 6-Bit Parallel Address Modes
♦ 40-Pin DIP and 44-Pin PLCC Packages
______________Ord e rin g In fo rm a t io n
PART
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
MAX458CPL
MAX458CQH
MAX458EPL
MAX459CPL
MAX459CQH
MAX459EPL
40 Plastic DIP
40 Plastic DIP
44 PLCC
________________________Ap p lic a t io n s
Video Test Equipment
Video Security Systems
40 Plastic DIP
Video Editing
_____________________Blo c k Dia g ra m
_________________P in Co n fig u ra t io n s
8 BUFFERED
INPUTS SWITCH ARRAY OUTPUT DRIVERS
8 x 4
4 75Ω
TOP VIEW
43
42 41 40
MAX459
6
5
4
3
2
1
44
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
75Ω
GND
GND
GND
GND
GND
GND
GND
75Ω
75Ω
75Ω
75Ω
OUT0
75Ω
A = 2
V
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
IN1
GND
IN2
7
8
39 GND
38 OUT0
37 GND
36 OUT1
GND
A = 2
8 x 4
SWITCH
ARRAY
OUT1
75Ω
V
9
10
GND
GND
A = 2
IN3 11
12
IN4 13
14
35
34
33
32
OUT2
75Ω
OUT3
75Ω
V
CC
V
MAX458
MAX459
V
OUT2
CC
GND
A = 2
V
EE
V
N.C.
EE
V
IN5 15
GND 16
IN6 17
31 OUT3
30 GND
GND
GND
29
A0
SERIAL OR PARALLEL
DIGITAL INTERFACE
& CONTROL
18 19 20 21 22 23 24 25 26 27
28
SERIAL/PARALLEL INTERFACE
(SPI™, QSPI™, MICROWIRE™ COMPATIBLE)
PLCC
DIP on last page.
™
SPI and QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor Corp.
_______________________________________________________________ Maxim Integrated Products
1
Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .