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MAX4990EVKIT

Description
Power Management IC Development Tools
CategoryDevelopment board/suite/development tools   
File Size153KB,16 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX4990EVKIT Overview

Power Management IC Development Tools

MAX4990EVKIT Parametric

Parameter NameAttribute value
Product CategoryPower Management IC Development Tools
ManufacturerMaxim
19-1143; Rev 0; 10/96
KIT
ATION
EVALU
LE
B
AVAILA
Quad/Triple, SPDT, RGB Switches
with 250MHz Video Buffer Amplifiers
____________________________Features
o
High Speed:
250MHz Small-Signal -3dB Bandwidth
135MHz Full-Power -3dB Bandwidth
o
70MHz 0.1dB Gain Flatness
o
1250V/µs Slew Rate
o
12ns to 0.1% Settling Time
o
0.03°/0.06% Differential Phase/Gain Error
o
2pF Input Capacitance
o
3ns Channel-Switching Time
o
120mVp-p Channel-Switching Transient
o
Three-State Output Allows Large Switch Arrays
o
Directly Drives 50Ω or 75Ω Back-Terminated
Cables
_______________General Description
The MAX498/MAX499 are high-speed, quad/triple, sin-
gle-pole/double-throw video switches with on-board
closed-loop buffer amplifiers. The buffer amplifiers fea-
ture +6dB gain (A
VCL
= 2V/V), 250MHz -3dB band-
width, 70MHz 0.1dB gain flatness, and 1250V/µs slew
rate. Fast switching time (3ns) and fast settling time
(12ns for a 4V step) make these devices excellent
choices for a wide variety of video applications. The low
differential gain/phase errors (0.03%/0.06°) and wide
bandwidth make them ideal for both composite-video
and RGB applications. The amplifiers are capable of
delivering ±2.5V into back-terminated 50Ω or 75Ω
cables, and they deliver ±2V to a 75Ω load, allowing
multiple cables to be driven from a single output.
For implementation of large switch arrays, a low-power
disable mode places the amplifier outputs in a high-
impedance state. Channel selection and output
enable/disable are controlled by four TTL/CMOS-
compatible logic inputs. Each video input is isolated by
an AC-ground pin, which minimizes channel-to-channel
capacitance and reduces crosstalk to 90dB at 10MHz.
The four-channel MAX498 dissipates 390mW (typical)
from ±5VDC power supplies with all output buffers
enabled. Power consumption is reduced to 130mW with
all buffers disabled. The corresponding dissipation for
the three-channel MAX499 is 300mW enabled and
100mW disabled.
MAX498/MAX499
______________Ordering Information
PART
MAX498CWI
MAX499CWG
TEMP. RANGE
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
28 SO
24 SO
________________________Applications
Video Switching and Routing
Broadcast-Quality Composite-Video Multiplexing
Workstations
Video Editing
Broadcast and High-Definition TV Systems
Multimedia Products
Medical Imaging
_________________Pin Configurations
TOP VIEW
IN1A 1
GND 2
IN2A 3
GND 4
IN3A 5
V
CC
6
V
EE
7
IN1B 8
GND 9
IN2B 10
GND 11
IN3B 12
24 GND
23 LE
22 EN
21 A0
MAX499
20 CS
19 OUT1
18 V
CC
17 V
EE
16 OUT2
15 N.C.
14 OUT3
13 N.C.
SO
MAX498 appears at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

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