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PDF MAX458 Data sheet ( Hoja de datos )
| Número de pieza | MAX458 | |
| Descripción | 8x4 Video Crosspoint Switches with Buffers | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX458 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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19-0258; Rev 2; 4/95
EVFAOLLULAOTWIOSNDKAITTAMSAHNEUEATL
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 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.
________________________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
AV = 2
75Ω
GND
AV = 2
75Ω
GND
AV = 2
75Ω
GND
AV = 2
75Ω
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
VCC 12
IN4 13
VEE 14
IN5 15
GND 16
IN6 17
MAX458
MAX459
39 GND
38 OUT0
37 GND
36 OUT1
35 VCC
34 OUT2
33 VEE
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
Call toll free 1-800-998-8800 for free samples or literature.
1 page  
8x4 Video Crosspoint Switches with Buffers
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
POWER SUPPLY CURRENT
MAX458
vs. TEMPERATURE
GAIN vs. FREQUENCY
100 6
ICC 4
80 2 GAIN
0
IEE -2
60 -4 0
-6 PHASE
36
72
40
108
144
20
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
180
0.1 1 10 100 250
FREQUENCY (MHz)
6
4
2
0
MAX459
GAIN vs. FREQUENCY
GAIN
PHASE
0.1 1 10
FREQUENCY (MHz)
0
36
72
108
144
180
100 250
CROSSTALK vs. FREQUENCY
40
0
-40
-80
-120
OUTPUT IMPEDANCE vs. FREQUENCY
CHANNEL SWITCH TRANSIENT
UPDATE
D1
10
D0 & D2
OUT IN2
IN5 IN2
1 GND
0.1
0.01 0.1
1
10
FREQUENCY (MHz)
100
MAX458
LARGE-SIGNAL PULSE RESPONSE
5V
1 10 100
FREQUENCY (MHz)
MAX458
SMALL-SIGNAL PULSE RESPONSE
100ns/div
MAX459
SMALL-SIGNAL PULSE RESPONSE
2V/div
GND
1V/div
+200mV
-200mV
+100mV
-100mV
+200mV
-200mV
+200mV
-200mV
-15V
25ns/div
10ns/div
10ns/div
_______________________________________________________________________________________ 5
5 Page 
8x4 Video Crosspoint Switches with Buffers
DIN
CS ONE
SHOT
D
Q
SCLK
MAX458
MAX459
Q
D
DOUT
IN
CLK
SWITCH
REGISTER
0
IN0 IN7
•••
ANALOG INPUTS
0
8-1 MUX
7
16-BIT
SHIFT
REGISTER
•••
0
SWITCH
8-1 MUX
REGISTER
17
•••
0
SWITCH
8-1 MUX
REGISTER
27
0
SWITCH
REGISTER
OUT 3 7
L = TRANSPARENT
H = LATCHED
WR = CE = UPDATE = HIGH
•••
8-1 MUX
OUT0
OUT1
OUT2
OUT3
Figure 5. Serial-Mode Logic Block Diagram
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet MAX458.PDF ] | |
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