Texas Instruments Evaluation Kit for FPD-Link Family of Serializer and Deserializer LVDS Devices FLINK3V8BT-85/NOPB FLINK3V8BT-85/NOPB 데이터 시트

FPD-Link Evaluation Kit User’s Manual 

 

National Semiconductor Corporation 

 

Rev 3.0 
Date: 9/25/2007 
Page 15 of 25 

 
On the Rx demo board, there are 29 outputs that have an 0402 pad in series (which 
are shorted out).  These pads are unpopulated from the factory but are provided if 
the user needs to install a 450 Ohm series resistors. This is required if directly 
connecting to 50 Ohm inputs on a scope.  To use this option the user must cut the 
signal line between the pads before installing the 450 Ohm series resistors.  R1 to 
R28 are associated with the DATA output lines.  R29 is associated with CLKOUT.  
The total load presented to the receiver output is 500 Ohms (450 + 50).  The 
waveform on the scope is 1/10 of the signal due to the resulting voltage divider (50 / 
(450 + 50)). 
 
Optional Series Termination Resistor mapping is shown below: 
 
 
 

RxOUT0 27 

R28 

RxOUT1 29 

R27 

RxOUT2 30 

R26 

RxOUT3 32 

R25 

RxOUT4 33 

R24 

RxOUT5 34 

R23 

RxOUT6 35 

R22 

RxOUT7 37 

R21 

RxOUT8 38 

R20 

RxOUT9 39 

R19 

RxOUT10 41 

R18 

RxOUT11 42 

R17 

RxOUT12 43 

R16 

RxOUT13 45 

R15 

RxOUT14 46 

R14 

RxOUT15 47 

R13 

RxOUT16 49 

R12 

RxOUT17 50 

R11 

RxOUT18 51 

R10 

RxOUT19 53 

R9 

RxOUT20 54 

R8 

RxOUT21 55 

R7 

RxOUT22 1 

R6 

RxOUT23 2 

R5 

RxOUT24 3 

R4 

RxOUT25 5 

R3 

RxOUT26 6 

R2 

RxOUT27 7 

R1 

 

 

 

RxCLKOUT 26 

R29 

 

RX

Series Termination

(Optional)