Datasheet

5 SERDESUB-21USB User’s Guide SNLU101 – April 2012

How to set up the Demo Evaluation Kit:

The DS90UB903Q/904Q evaluation boards consist of two sections. The first part of the

board provides the point-to-point interface for transmitting parallel video data. The second

part of the board allows bi-directional control communication of an I

C bus control of using

a MCU/FPGA to programming a remote peripheral device via the Serializer.

The PCB routing for the Serializer input pins (DIN) accept incoming parallel video data at

1.8V/3.3V LVCMOS signals from J1 IDC connector. The FPD-Link III interface uses a

single twisted pair cable (provided). The output pins (ROUT) are accessed through a J7

IDC connector. Please follow these steps to set up the evaluation kit for bench testing and

performance measurements:

1) A two (2) meter high speed USB 2.0 cable has been included in the kit. Connect the 4-

pin USB A side of cable harness to the serializer board and the other

side of the harness, the 5-pin mini USB jack to the Deserializer board.

This completes the FPD-Link III interface connection.

NOTE: The DS9UB903Q and DS9UB904Q are NOT USB compliant and should

not be plugged into a USB device nor should a USB device be plugged into the

demo boards.

2) Jumpers and switches have been configured at the factory; they should not require any

changes for immediate operation of the chipset. See text on Configuration settings

and datasheet for more details.

3) From the controller, connect a flat cable (not supplied) to the Serializer board and

connect another flat cable (not supplied) from the Deserializer board to the display

module. Note: For 50 ohm signal sources, provide 1.8V/3.3V LVCMOS input signal

levels into DIN[20:0] and PCLK and add 50 ohm parallel termination resistors R1-R22

on the DS9UB903Q Serializer board.

4) Connect the Serializer I

C ports to the I

C of the MCU/FPGA (I

C master). Connect

the Deserializer I

C ports to the I

C bus of the peripheral slave device.

5) Power for the Serializer and Deserializer boards must be supplied externally through

Power Jack (VDD). Grounds for both boards are connected through Power Jack (VSS)

(see section below).

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MINI