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MAX4886 Evaluation Kit
Component Suppliers
SUPPLER
Central Semiconductor
Murata Electronics North America, Inc.
Taiyo Yuden
TDK Corp.
PHONE
516-435-1110
770-436-1300
800-348-2496
847-803-6100
WEBSITE
www.centralsemi.com
www.murata-northamerica.com
www.t-yuden.com
www.component.tdk.com
Note: Indicate that you are using the MAX4886 when contacting these component suppliers.
Quick Start
Table 1. Jumper JU1 Functions
Recommended Equipment
Before beginning, the following equipment is needed:
? One or two HDMI sources
?
HDMI-compatible sink (e.g., monitor)
SHUNT POSITION
1-2*
2-3
*Default position.
MAX4886 SEL PIN
Connected to VDD
Connected to GND
SIGNAL PATH
J3 to J1
J2 to J1
Procedure
The MAX4886 EV kit is a fully assembled and tested
surface-mount PCB. Follow the steps below to verify the
board operation:
1) Verify that a shunt is installed across pins 1-2 on
jumpers JU1, JU2, and JU3.
2) Connect one or two HDMI sources to J2 and/or J3.
3) Connect an HDMI-compatible sink to J1.
4) Enable the HDMI source(s).
Detailed Description
The MAX4886 EV kit is a fully assembled and tested
surface-mount PCB. The MAX4886 EV kit comprises
Input Supply and On-Board Regulation
Jumper JU2 selects between the MAX4886 EV kit ’s
power-up options, either through the HDMI source
applied at J2/J3 or an external 5V DC power supply. To
configure these options, set JU2 as desired (see Table 2).
The MAX6329 then converts the voltage from 5V (V+) to
3.3V (VDD) to power the MAX4886 and MAX4929E (top
half). Note that when powering from a regulated exter-
nal 5V supply, make sure to apply power before the
HDMI signal is applied.
Table 2. Jumper JU2 Functions
SHUNT POSITION EV KIT INPUT SUPPLY
1-2* Supplied from HDMI source
two circuits, a typical HDMI 2:1 switch, and an eye dia-
2-3
Externally supplied to +5V pad
gram test circuit.
The HDMI application circuit evaluates the MAX4886
high-speed HDMI/DVI 2:1 digital video switch, combined
with the MAX4929E, to perform a full 2:1 HDMI switching
function. On the EV kit, the typical 2:1 HDMI switching
circuit (top half) can be self-powered from the HDMI
source or from an external regulated 5V source and pro-
vides on-board 3.3V regulation to power the switching
circuit. All signal traces in the HDMI application circuit
are 100 Ω differential controlled-impedance traces.
A separate test circuit is also provided at the bottom of
*Default position.
MAX4929E Enable Input (HIZ2)
The MAX4929E is enabled through configuration of the
HIZ1 and HIZ2 pins. Jumper JU3 controls the
MAX4929E’s enable input on the EV kit by controlling
the HIZ2 pin. By configuring JU3 to the desired setting
(see Table 3), the MAX4929E can be set for normal
operation or placed in a high-impedance state. Note
that the MAX4929E’s HIZ1 pin is set to GND by default.
Table 3. Jumper JU3 Functions
the MAX4886 EV kit for eye diagram evaluation using
SMA connections and 50 Ω controlled-impedance traces.
Logic Inputs (SEL)
The MAX4886 SEL pin controls the signal paths
between source 1 and source 2. By setting jumper JU1
(see Table 1), SEL can be configured to set the signal
path either from J3 to J1 or from J2 to J1.
SHUNT
POSITION
1-2*
2-3
MAX4929E HIZ2 PIN
Connected to VDD
Connected to GND
FUNCTION
Normal operation
(enabled)
High-impedance
mode (disabled)
*Default position.
2
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