SNOU184 November   2021 TLV3801

 

  1.   Trademarks
  2. 1Introduction
  3. 2Features
  4. 3EVM Specifications
  5. 4Recommended Equipment
  6. 5How to Make a TPHL Propagation Delay Measurement With Split Supplies
  7. 6Board Setup
    1. 6.1 Supply Voltage
    2. 6.2 Inputs
    3. 6.3 Outputs
  8. 7Layout Guidelines
  9. 8Schematic
  10. 9Bill of Materials

6.2 Inputs

Resistors R6 and R3 are 0-Ω resistors. The input terminals (IN+ and IN-) have corresponding sense lines so that the inputs to the device can be terminated on the lines with 50-Ω to an oscilloscope. This allows the input signals to be observed with minimal loading and distortion. There are also optional input resistors R4 and R5 for direct 50-Ω terminations if required by the input signal generator, otherwise they can be left uninstalled.

Figure 6-2 Input Side Schematic Without Optional Resistors R4 and R5

Additionally, the pads from R4 and R5 can be used to solder a 100-Ω termination resistor for LVDS input signals.

Figure 6-3 Configuration for LVDS Inputs Using the Unused Pads of R4 and R5