Texas Instruments FPD- Link LVDS to FPD-Link II Embedded Clock LVDS Converter DS99R421 Evaluation Kit FPDXSDUR-43USB/NOP FPDXSDUR-43USB/NOPB Datenbogen

 

 

National Semiconductor Corporation 

 

Date: 5/12/2008 
Page 6 of 39 

 

 
The PCB routing for the translator LVDS input pins (RxIN) have been laid out to plug 
directly into FPD HSL Tx demo board (note only 6 bit mapping is used). The FPD-Link II 
TxOUT/RxIN (DOUT/RIN) interface uses a standard USB 2.0 connector/cable 
assembly.  The PCB routing for the Rx output pins (ROUT) are accessed through a 50-
pin 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 DS99R421 board and 

the other side the 5-pin mini USB jack 

to the DS90UR124 de-

serializer board.  This completes the FPD-Link II interface connection. 

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 for more details.  From the Video Decoder board, connect 
a flat cable (not supplied) to the translator board and connect another flat cable 
(not supplied) from the De-serializer board to the panel.  

 

3)  Power for the Tx and Rx boards must be supplied externally through Power Jack 

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

 
 
 

 

The translator and de-serializer boards must be powered by supplying power externally 
through J3 (VDD) and J4 (VSS) on the translator board and J4 (VDD) and J5 (VSS) on 
de-serializer board.  Note +4V is the absolute MAXIMUM voltage (not operating voltage) 
that should ever be applied to the translator (DS99R421) or de-serializer (DS90UR124) 
VDD terminal.