EVM Setup and Operation
5
SLLU296 – August 2018
Copyright © 2018, Texas Instruments Incorporated
TCAN1046V Evaluation Module
2
EVM Setup and Operation
This section describes the setup and operation of the EVM for parameter performance evaluation.
2.1
Overview and Basic Operation Settings
2.1.1
V
CC
Power Supply (J10)
The basic setup of the TCAN1046V EVM uses at the most two power supply outputs required to evaluate
standard 5-V supply transceiver with possibility of 3.3-V IO level device performance. When using 5-V for
supply and IO levels, connect the 5-V supply to the J10 and J11 headers. The power supplied should
meet 5-V and at least 100-mA. If using a separate supply for IO levels, leave J11 disconnected for now.
2.1.2
I/O Power Supply V
IO
(J11)
For use cases where the IO level is going to be separate from the VCC voltage, a second power supply is
needed to test the device. Connect this power supply via J11; the power supply will need to be capable of
3.3-V at 50-mA.
2.1.3
Transmit and Receive Connections(J5)
All transmit and receive (TXD and RXD) for both CAN interfaces, VIO, VCC, and GND connections are
available on the J5 header. This allows the user the ability to evaluate the communication parameters of
the transceiver in a straightforward manner.
Table 2. J5 Pin Definitions
Pin
Connection
Description
1
GND
Pin 2 and 5 of the transceiver, GND
2
VCC
Pin 3 of the transceiver, VCC
3
GND
Pin 2 and 5 of the transceiver, GND
4
VIO
Pin 11 of the transceiver, VIO
5
GND
Pin 2 and 5 of the transceiver, GND
6
TXD1
Pin 1 of the transceiver, TXD1
7
GND
Pin 2 and 5 of the transceiver, GND
8
RXD1
Pin 4 of transceiver, RXD1
9
GND
Pin 2 and 5 of the transceiver, GND
10
TXD2
Pin 6 of the transceiver, TXD2
11
GND
Pin 2 and 5 of the transceiver, GND
12
RXD2
Pin 7 of the transceiver, RXD2
This header is arranged to provide a separate ground for each signal pair (TXD/GND and RXD/GND). If
the EVM is being used with lab equipment, connect separate cables to these main points via simple 2-pin
header connectors. If connecting the board to a processor-based system, connect a single cable with all
power and signals via a 10-pin header cable to this port.
2.1.4
TXD Inputs (J5 or TP7 or TP10)
The TXD inputs (pin 1 and 6) of the transceiver; TXD1 is routed to pin 6 of J5, or TP7. The signal path to
the J5 header is pre-installed with a 0-
Ω
series resistor, R14. TXD2 is routed to pin 10 of J5, or TP10, and
the signal path to the J5 header is pre-installed with a 0-
Ω
resistor, R19.
2.1.5
RXD Outputs (J5 or TP8 or TP11)
The RXD outputs (pin 4 and 7) of the transceiver; RXD1 is routed to pin 8 of J5, or TP8. The signal path
to the J5 header is pre-installed with a 0-
Ω
series resistor, R17. RXD2 is routed to pin 12 of J5, or TP11,
and the signal path to the J5 header is pre-installed with a 0-
Ω
resistor, R23.
