SLLU355 October   2022 TCAN1046A-Q1 , TCAN1046AV-Q1

 

  1.   TCAN1046A/V Evaluation Module
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Overview
    2. 1.2 CAN EVM
      1. 1.2.1 Schematic
      2. 1.2.2 Jumper Connections
  4. 2EVM Setup and Operation
    1. 2.1 Overview and Basic Operation Settings
      1. 2.1.1 VCC Power Supply (J6 and J21)
      2. 2.1.2 I/O Power Supply VIO (J17)
      3. 2.1.3 Transmit and Receive Connections(J11 and J22)
      4. 2.1.4 TXD Inputs (J11/J22, TP13 and TP14/TP29 and TP31)
      5. 2.1.5 RXD Outputs (J11/J22, TP15 and TP16/TP30 and TP34)
      6. 2.1.6 STBY inputs (J12 and J13/J24 and J25, TP10 and TP12/TP32 and TP33)
      7. 2.1.7 Bus Observation (J3 or J8/J14 or J19)
      8. 2.1.8 Bus protection
    2. 2.2 Using CAN Bus Load, Termination, and Protection Configurations
    3. 2.3 Using Customer Installable I/O Options for Current Limiting, Pullup and Pulldown, Noise Filtering
  5. 3CAN EVM Configuration for TCAN1046A and TCAN1046AV

2.3 Using Customer Installable I/O Options for Current Limiting, Pullup and Pulldown, Noise Filtering

The TCAN1046AEVM has footprints on the PCB for the installation of various filtering and protection options to adapt the EVM to match CAN network topology requirements if the EVM is being used as a CAN node.

Each digital input or output pin has footprints allowing for series current-limiting resistors (default populated with 0 Ω), pull-up resistors (defaulted with 4.7 kΩ), and a capacitor to GND which allows for RC filters when configured with a series resistor. Table 2-7 lists these features for each of the digital input and output pins of the EVM. Replace or populate the RC components as necessary for the application.

Table 2-7 TCAN1046A RC Filter and Protection Lists
Device Pin Jumperable Series R Pullup C to GND
No. Description Type Pullup Pulldown
1/5 TXD1/TXD2 Input N/A N/A R22/R28 R20/R27 PU C12/C13
4/8 RXD1/RXD2 Output N/A N/A R25/R29 R21/R26 PU C11/C14
Table 2-8 TCAN1046AV RC Filter and Protection Lists
Device Pin Jumperable Series R Pullup C to GND
No. Description Type Pullup Pulldown
1/6 TXD1/TXD2 Input N/A N/A R50/R54 R49/R52 PU C30/C31
4/7 RXD1/RXD2 Output N/A N/A R51/R57 R48/R53 PU C29/C32
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