System Overview
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ZHCU616–December 2018
TIDUEN3 — http://www-s.ti.com/sc/techlit/TIDUEN3
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可通过双路
CAN-FD
进行目标数据输出的汽车级
RFCMOS 77GHz
雷达模块
参考设计
2.2.4 LM536253-Q1
The LM536253-Q1 is designed to support a smaller solution size and run at cooler temperatures in a
application, which is a combination of package technology and higher overall efficiency in operation. Using
several techniques to minimize switch noise and minimized parasitic impedance, this device offers low
noise emission which helps to lower system electromagnetic compatibility (EMC) and assist with the ease
of design. The DC/DC converter is optimized for out-of-standard regulation conditions, which can either be
fault conditions or normal operation (like cold crank and load dump). The LM536253-Q1 offers the full
capability to assist front-end automotive power supply designs.
2.2.5 TCAN1042GV-Q1
This automotive CAN transceiver meets the ISO11898-2 (2016) high-speed CAN physical layer standard.
This PHY has a low power standby mode with remote wake request and many protection features to
enhance device and network robustness. This PHY was chosen for its simplicity and small size.
2.2.6 TCAN4550-Q1
Through the SPI interface, this device provides all of the necessary components to implement CAN-FD
into any system. Although classic CAN controllers are frequently available and integrated into numerous
processing solutions, the same does not hold true for CAN-FD. The TCAN4550-Q1 allows users to
simplify their processing solution to save additional cost and offload the processing requirements of CAN-
FD to the integrated CAN-FD controller and CAN-FD transceiver. Available in a small, 20-pin, 4x4
package, the device can be utilized to implement CAN-FD or add additional CAN-FD ports.
2.3 Design Considerations
2.3.1 PCB and Form Factor
This reference design is not intended to fit any particular form-factor. The only goal of the design with
regards to the PCB is to make a compact solution that serves as a fully-featured automotive radar sensor.
With the mounting holes, the board measures roughly 50 mm × 71 mm (2 in × 2.8 in). 图 2 and 图 3 show
the top view and bottom view of the PCB.