Texas Instruments 3.125 Gbps 1:4 LVDS Buffer Repeater Evaluation Board DS25BR204EVK/NOPB DS25BR204EVK/NOPB Datenbogen

DS25BR204EVK User Manual 

  

This section provides recommended test setup procedure for the device evaluation. Figure 3 
depicts a typical setup and instrumentation you may use for the device evaluation. 

  
1.  Configure the test setup as shown in Figure 3. 

 

2.  Select a desired input using J20.  

 

3.  Power up the device and desired output(s) using the J18, J19, J20, J22 and J24.  

 

4.  Apply + supply (3.3V typical) to the VDD and – supply (ground) to the VSS connectors.  

 

5.  Set desired pre-emphasis and/or equalization levels according to Tables 1 and 2. 

 

6.  Connect a signal source (signal generator, data source, or an LVDS driver) to the desired 

INn inputs on the board and adjust the signal parameters (VOH, VOL, VCM) so that they 
comply with the device input recommendations. 

 

7.  Connect an oscilloscope to the selected OUTn outputs and view the output signals with 

an oscilloscope with the analog bandwidth of at least 5 GHz. 

 
 

 

Figure 3. DS25BR204 Test Setup Example 

 
 
 

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