MaxLinear XR31234 User Manual

Introduction
Exar's XR31233 / XR31234 / XR31235 EVB evaluation
board provides a platform on which to examine the features
and performance of the XR31233 / XR31234 / XR31235
CAN Bus transceivers. The XR31233 / XR31234 / XR31235
EVB is a 2 layer pcb that allows for access to all the device
pins.

Hardware Setup

To use the Evaluation Board, the following components are
required:
1. XR31233 / XR31234 / XR31235 EVB evaluation board
2. Power supply
3. Signal source
4. Oscilloscope for data analysis
5. Digital Multimeter
Refer to the product data sheet for additional information.

Evaluation Board Overview

The block diagram shown in Figure 2, illustrates the connection points for the CAN Bus, power and ground, TTL/CMOS
driver input, TTL/CMOS receiver output and the mode pins.
Receiver Output
GND PWR
TTL/CMOS
Driver Input
TTL/CMOS
Figure 2: Block Diagram XR31233 / XR31234 / XR31235 - EVB
XR31233 / XR31234 / XR31235
Evaluation Board User's Manual
Top View of XR31233 / XR31234 / XR31235 EVB
RS Mode Selection
DUT
LBK/EN/AB Selection
Figure 1:
CAN Bus
1/8