MAX4990EVKIT+ Maxim Integrated Products, MAX4990EVKIT+ Datasheet

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MAX4990EVKIT+

Manufacturer Part Number
MAX4990EVKIT+
Description
KIT EVAL FOR MAX4990
Manufacturer
Maxim Integrated Products
Datasheets
1.MAX4990ETDT.pdf (8 pages)
2.MAX4990EVKIT.pdf (16 pages)

Specifications of MAX4990EVKIT+

Main Purpose
Lighting, Electroluminescent
Utilized Ic / Part
MAX4990
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Secondary Attributes
-
Embedded
-
Primary Attributes
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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
width, 70MHz 0.1dB gain flatness, and 1250V/ s 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.
________________________Applications
19-1143; Rev 0; 10/96
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
_______________General Description
Video Switching and Routing
Broadcast-Quality Composite-Video Multiplexing
Workstations
Video Editing
Broadcast and High-Definition TV Systems
Multimedia Products
Medical Imaging
________________________________________________________________ Maxim Integrated Products
VCL
= 2V/V), 250MHz -3dB band-
with 250MHz Video Buffer Amplifiers
Quad/Triple, SPDT, RGB Switches
____________________________Features
_________________Pin Configurations
______________Ordering Information
MAX498CWI
MAX499CWG
MAX498 appears at end of data sheet.
High Speed:
250MHz Small-Signal -3dB Bandwidth
135MHz Full-Power -3dB Bandwidth
70MHz 0.1dB Gain Flatness
1250V/µs Slew Rate
12ns to 0.1% Settling Time
0.03°/0.06% Differential Phase/Gain Error
2pF Input Capacitance
3ns Channel-Switching Time
120mVp-p Channel-Switching Transient
Three-State Output Allows Large Switch Arrays
Directly Drives 50Ω or 75Ω Back-Terminated
Cables
TOP VIEW
PART
IN1A
IN2A
IN3A
IN1B
IN2B
IN3B
GND
GND
GND
GND
V
V
CC
EE
10
11
12
TEMP. RANGE
1
2
3
4
5
6
7
8
9
0°C to +70°C
0°C to +70°C
MAX499
SO
24
23
22
21
18
17
16
13
20
19
15
14
28 SO
24 SO
PIN-PACKAGE
GND
LE
CS
OUT1
V
OUT2
N.C.
N.C.
EN
A0
V
OUT3
CC
EE
1

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MAX4990EVKIT+ Summary of contents

Page 1

... Broadcast-Quality Composite-Video Multiplexing Workstations Video Editing Broadcast and High-Definition TV Systems Multimedia Products Medical Imaging ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800 ____________________________Features High Speed: 250MHz Small-Signal -3dB Bandwidth 135MHz Full-Power -3dB Bandwidth 70MHz 0.1dB Gain Flatness 1250V/µ ...

Page 2

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers ABSOLUTE MAXIMUM RATINGS Supply Voltage ( )................................................+12V CC EE Voltage on IN_ _ to GND ..................(V - 0.3V Voltage on Digital Inputs (LE, EN, A0, CS) ...

Page 3

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers AC ELECTRICAL CHARACTERISTICS = 100Ω 0V +5V -5V 0V IN_ _ L PARAMETER SYMBOL Small-Signal, ...

Page 4

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers __________________________________________Typical Operating Characteristics (V = +5V -5V 100 , T = +25°C, unless otherwise noted SMALL-SIGNAL GAIN vs. FREQUENCY 20mVp-p ...

Page 5

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers ____________________________Typical Operating Characteristics (continued +5V -5V 100 T = +25°C, unless otherwise noted MAX498 SUPPLY CURRENT vs. TEMPERATURE ...

Page 6

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers ____________________________Typical Operating Characteristics (continued +5V -5V 100 , T = +25°C, unless otherwise noted SMALL-SIGNAL PULSE RESPONSE +100 IN 0 -100 ...

Page 7

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers ______________________________________________________________Pin Description PIN NAME MAX498 MAX499 Analog Ground. All ground pins are internally connected. Connect all ground pins externally to 11, 13, GND 11, 24 ...

Page 8

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers + 0 0.1 F Figure 1a. MAX498 Typical Application Circuit 8 _______________________________________________________________________________________ 1 28 GND IN0A 2 27 IN1A GND ...

Page 9

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers + 0 0.1 F Figure 1b. MAX499 Typical Application Circuit _______________________________________________________________________________________ 24 1 IN1A GND 23 2 GND IN2A ...

Page 10

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers ______________ Detailed Description The MAX498/MAX499 are quad/triple video switches with high-speed, closed-loop, voltage-feedback ampli- fiers set to a 2V/V gain. Figure 1 shows typical applica- tion circuits. The amplifiers use a ...

Page 11

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers MAX186/MAX188 FULL POWER-DOWN ISO 12 100pF 10M 100M FREQUENCY (Hz) Figure 3a. Small-Signal Gain vs. Frequency and ...

Page 12

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers COMPARATOR INPUT BIAS CURRENT vs. SUPPLY VOLTAGE 100 150 200 270 CAPACITANCE (pF) Figure 5. Isolation Resistor vs. Capacitive Load Switching Audio Signals ...

Page 13

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers Another option for output disable is to connect LE to V+, parallel the outputs of several MAX498/MAX499s, and use — – individually disable all devices but the one ...

Page 14

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers OUTPUTS Figure 7. Logic Timing Diagram LE MAX498 MAX499 SHUTDOWN EN LE MAX498 MAX499 EN NOTE: ISOLATION RESISTORS (IF REQUIRED) NOT SHOWN. Figure 8. (a) ...

Page 15

Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers MAX498/MAX499 4Vp- 10MHz ADJACENT CHANNEL Figure 9. Test Circuits for Measuring Crosstalk: a) Adjacent Channel; b) All ...

Page 16

... Maxim reserves the right to change the circuitry and specifications without notice at any time. implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 16 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 ...

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