19-6140; Rev 0; 11/11
MAX14983E Evaluation Kit
Evaluates: MAX14983E
General Description
The MAX14983E evaluation kit (EV kit) is a fully
assembled and tested surface-mount PCB that utilizes the
MAX14983E VGA multiplexer to implement a 1:2 video
graphics array circuit. The IC switches graphics signals
between a controller and two outputs.
VGA input /output connections are provided to easily
interface the EV kit with VGA-compatible devices. The
EV kit provides LEDs to indicate the status of the monitor-
detection outputs. The EV kit operates with a single 5V
supply input.
S
Complete 1:2 VGA Multiplexer
S
Single 5V Power Supply
S
VGA Inputs /Outputs
S
Enable Inputs
S
Monitor-Detection Outputs
S
Proven PCB Layout
S
Fully Assembled and Tested
Ordering Information
appears at end of data sheet.
Features
Component List
DESIGNATION
C1
QTY
1
DESCRIPTION
10FF
Q10%,
10V X7R ceramic
capacitor (1206)
Murata GRM31CR71A106K
0.1FF
Q10%,
16V X7R ceramic
capacitors (0603)
Murata GRM188R71C104K
Not installed, capacitors (0603)
1FF
Q10%,
10V X7R ceramic
capacitors (0603)
Murata GRM188R71A105K
40V, 500mA Schottky diodes
(SOT563)
Central Semi CMLSH05-4+
Green LEDs (1206)
Black test point
15-pin VGA, HD sub-D, 15-pin
female connectors
3-pin headers
2-pin headers
U2
VCC
—
—
*EP
= Exposed pad.
1
1
4
1
DESIGNATION
Q1, Q2, Q3
R1, R2, R3, R10,
R11, R12
R4, R5, R6
R7, R8, R9
R13–R16
R17, R18
R19
U1
QTY
3
DESCRIPTION
General-purpose pnp transistors
(SOT23)
Fairchild MMBT5087
560I
Q5%
resistors (0603)
100kI
Q5%
resistors (0603)
47kI
Q5%
resistors (0603)
39I
Q5%
resistors (0603)
3.3kI
Q5%
resistors (0603)
330I
Q1%
resistor (0603)
1:2 VGA multiplexer with monitor
detection (32 TQFN-EP*)
Maxim MAX14983EETJ+
3.3V LDO linear regulator
(5 SC70)
Maxim MAX8511EXK33+
Red test point
Shunts
PCB: MAX14983E EVALUATION
KIT
C2–C7
C8–C11
C12, C16
6
0
2
6
3
3
4
2
1
1
D1, D2
D3–D8
GND
J0, J1, J2
JU1, JU2
JU3, JU4
2
6
1
3
2
2
Component Suppliers
SUPPLER
Central Semiconductor Corp.
Fairchild Semiconductor
Murata Electronics North America, Inc.
PHONE
631-435-1110
888-522-5372
770-436-1300
WEBSITE
www.centralsemi.com
www.fairchildsemi.com
www.murata-northamerica.com
Note:
Indicate that you are using the MAX14983E when contacting these component suppliers.
_________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX14983E Evaluation Kit
Evaluates: MAX14983E
Quick Start
• MAX14983E EV kit
Detailed Description
The MAX14983E EV kit evaluates the MAX14983E enhanced
1:2 VGA mux with monitor detection and priority port logic.
VGA connectors are provided to easily interface the EV kit
with VGA devices. The EV kit provides jumpers to control
the enable inputs. The EV kit also provides status LEDs to
monitor the monitor-detection outputs. The EV kit operates
from a single 5V power supply.
The EV kit provides jumpers JU1 and JU2 to control
device enable inputs
EN1
and
EN2,
respectively. The
enable inputs control the high-bandwidth switches to
route the standard VGA R, G, and B signals. Assert
EN1
to connect the graphics controller to the monitor on
port 1. Assert
EN2
to connect the graphics controller to
the monitor on port 2. Table 1 summarizes the device’s
channel selection.
Recommended Equipment
• Single 5V power supply
• VGA-compatible output (e.g., notebook computer
docking stations)
• VGA-compatible input (e.g., monitor)
The EV kit is a fully assembled and tested surface-mount
PCB. Follow the steps below to verify board operation:
1) Verify that jumpers are configured in the following
positions:
JU1, JU2: Pins 2-3
JU3, JU4: Not installed
2) Connect the positive terminal of the 5V power
supply to the VCC test point on the EV kit. Connect the
negative terminal of the power supply to the GND test
point on the EV kit.
3) Connect the VGA source to connector J0 (VGA host).
4) Connect the VGA output to connector J1 (VGA
monitor 1).
5) Enable the 5V power supply.
6) Enable the VGA source.
7) Visually verify that the VGA monitor shows the infor-
mation from the source.
8) See Table 1 for other states of the VGA controller.
Procedure
Enable Inputs (Channel Selection)
The EV kit provides LEDs (D5, D6, D7) to indicate the
status of the device’s three monitor-detection outputs
(MD1,
MD2,
and
MDOR).
When any of the monitor-detec-
tion outputs are asserted, its respective LED turns on.
Monitor Detection and
Automatic Switching
The device automatically switches the graphics controller
to the monitor that is plugged in when configured in auto-
matic mode. To configure automatic mode, leave jumpers
JU1 and JU2 open and place shunts on both jumpers
JU3 and JU4. This connects
MD1
and
MD2
to
EN1
and
EN2,
respectively. If a monitor is detected in both VGA
ports simultaneously, the multiplexer defaults to port 1.
Table 2 summarizes the device’s monitor-detection feature.
Table 1. Channel Selection
SHUNT POSITIONS
JU1
2-3*
2-3
1-2
1-2
*Default
position.
JU2
2-3*
1-2
2-3
1-2
VGA CONTROLLER
CONNECTED TO
VGA monitor 1
VGA monitor 1
VGA monitor 2
Not connected
Table 2. Monitor Detection
MONITOR 1
DETECTED
No
No
Yes
Yes
MONITOR 2
DETECTED
No
Yes
No
Yes
MD1
High
High
Low
Low
MD2
High
Low
High
Low
MDOR
High
Low
Low
Low
_________________________________________________________________
Maxim Integrated Products
2
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