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MAX456CPL-

Description
Video Switch ICs 8x8 Crosspoint Video Switch
Categorysemiconductor    Other integrated circuit (IC)   
File Size97KB,12 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX456CPL- Overview

Video Switch ICs 8x8 Crosspoint Video Switch

MAX456CPL- Parametric

Parameter NameAttribute value
Product CategoryVideo Switch ICs
ManufacturerMaxim
RoHSDetails
PackagingBulk
Factory Pack Quantity1
19-2858; Rev 2; 2/94
8 x 8 Video Crosspoint Switch
_______________General Description
The MAX456 is the first monolithic CMOS 8 x 8 video
crosspoint switch that significantly reduces component
count, board space, and cost. The crosspoint switch
contains a digitally controlled matrix of 64 T-switches
that connect eight video input signals to any, or all, out-
put channels. Each matrix output connects to eight
internal, high-speed (250V/µs), unity-gain-stable buffers
capable of driving 400Ω and 20pF to ±1.3V. For appli-
cations requiring increased drive capability, the
MAX456 outputs can be connected directly to two
MAX470 quad, gain-of-two video buffers, which are
capable of driving 75Ω loads.
Three-state output capability and internal, programma-
ble active loads make it feasible to parallel multiple
MAX456s and form larger switch matrices.
In the 40-pin DIP package, crosstalk (70dB at 5MHz) is
minimized, and board area and complexity are simpli-
fied by using a straight-through pinout. The analog
inputs and outputs are on opposite sides, and each
channel is separated by a power-supply line or quiet
digital logic line.
____________________________Features
o
o
o
o
o
o
Routes Any Input Channel to Any Output Channel
Switches Standard Video Signals
Serial or Parallel Digital Interface
Expandable for Larger Switch Matrices
80dB All-Channel Off Isolation at 5MHz
8 Internal Buffers with:
250V/µs Slew Rate, Three-State Output Capability,
Power-Saving Disable Feature, 35MHz Bandwidth
MAX456
______________Ordering Information
PART
MAX456CPL
MAX456CQH
MAX456C/D
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
40 Plastic DIP
44 PLCC
Dice*
Ordering Information continued on last page.
* Dice are specified at T
A
= +25°C, DC parameters only.
_________________Pin Configurations
TOP VIEW
D1/SER OUT
1
D0/SER IN
2
A2
3
A1
4
IN0
5
A0
6
40
V+
39
OUT0
38
D2
________________________Applications
Video Test Equipment
Video Security Systems
Video Editing
MAX456
37
OUT1
36
D3
35
OUT2
34
V-
33
OUT3
32
AGND
31
OUT4
30
AGND
29
OUT5
28
AGND
27
OUT6
26
V+
25
OUT7
24
CE
23
CE
22
LATCH
21
WR
________Typical Application Circuit
8 INPUT CHANNELS
IN1
7
MAX470
A
V
= 2
WR
LATCH
LOAD
8
75Ω
IN2
9
DGND
10
75Ω
IN3
11
DGND
12
IN4
13
MAX456
OUTPUT
SELECT
A2
A1
A0
8X8
T-SWITCH
MATRIX
D3
D2
D1/SER OUT
D0/SER IN
A
V
= 2
EDGE/LEVEL
14
IN5
15
V+
16
IN6
17
SER/PAR
18
IN7
19
V-
20
INPUT
SELECT
OR
SERIAL
I/O
MAX470
PLCC on last page
DIP
1
________________________________________________________________
Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.

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