SCEU026 February   2024 SN74AVC8T245 , SN74AVC8T245-Q1 , SN74AXC8T245 , SN74AXC8T245-Q1 , SN74LVC8T245 , SN74LVC8T245-Q1 , SN74LXC8T245 , SN74LXC8T245-Q1 , TXV0106 , TXV0106-Q1 , TXV0108 , TXV0108-Q1

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 EVM Features
    2. 2.2 Hardware Description
      1. 2.2.1 Headers
      2. 2.2.2 Bypass Capacitors
      3. 2.2.3 Pull-up and Pull-down Resistors and Capacitive Loading
      4. 2.2.4 SMA Connectors
      5. 2.2.5 Set-up and Measurements
  9. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 PCB Layout
    3. 3.3 Bill of Materials
  10. 4Additional Information
    1.     Trademarks

2.2.4 SMA Connectors

The edge-mounted SMA connector option is provided for each of the channel versions on data IO pins (A-ports for TXV0106-EVM and A and B ports for TXV0108-EVM) for high-speed operation and skew measurements.

Pairs of SMA connectors come installed on the A3 and A4 for the data input pairs of the 6-channel device option and A1, B1, A8 and B8 for the data IO pairs of the 8-channel device option, as shown in Figure 3-1.

The corresponding A-port header pins come installed with 50-Ω termination resistors for impedance control. All other data IO pins also have the uninstalled SMA connector option with the 50-Ω termination resistors to the corresponding A-port headers as shown in Section 3.1.

For the TXV0106-EVM, all B1-B6 output traces are matched for 0 ps board skew. For TXV0108-EVM, outputs can have negligible skew differences as shown in Table 4-1.