Astemo MRS3754-XXX 76-77 GHz Adaptive Radar Sensor
Description
Radar Sensor MRS3754-XXX uses FMCW method. The FMCW method transmits radio waves that have been modulated so that the frequency of the transmitted signal rises linearly with the passage of time. The IF signal is generated by synthesizing the transmitted wave and received wave. By using this IF signal, the distance, speed, and angle of the object are detected. MRS3754-XXX installed in vehicle detects objects around the vehicle. If any collisions are likely to happen, MRR3754-XXX alert the driver to support safe driving.
Product Specification
Table１ Specification
| No. | Item | Specification |
| 1 | Detection system | FMCW mode |
| 2 | Rated voltage | 12VDC, 24VDC |
| 3 | Center frequency | 76.5GHz |
| 4 | Operation temperature | -40~+85deg |
| 5 | Output interface | CAN 2ch |
| 6 | Field of view | ±75deg(Horizontal Direction) |
| 7 | Distance | 80m (RCS 10dBsm) |
| 8 | Dimensions | 83.1×92×19.4mm |
| 9 | Weight | 86±10g |
External dimensions
Main Parts Description
Pin assignment
Table2 Pin assignment
| Pin No. | Designation |
| 1 | V_IN |
| 2 | GND |
| 3 | CAN_H（CH1） |
| 4 | CAN_L（CH1） |
| 5 | CAN_H（CH0） |
| 6 | CAN_L（CH0） |
Application
- MRS3754-XXX supports 4 types of alert functions.
SA (Side Assist)
- Scene：Turn left or right at the intersection
- If there is a possibility of a collision in front of the vehicle, the SA application alerts the driver.
TA (Turn Assist)
- Scene：Turn left
- If there is a possibility of getting caught on the left side of the vehicle, the TA application alerts the driver
FCTA (Front Cross Traffic Alert)
Scene：Go straight at the intersection
- If there is a possibility of a collision in front of the vehicle, the FCTA application alerts the driver.
LCA (Lane Change Assist)
- Scene：Driving
- If there is a possibility of a collision due to a lane change, the LCA application alerts the driver
Marking
FCC
FCC ID: 2A3Y7MRS3754-00A-00
Notation Requirements：
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
FCC CAUTION:
Changes or modifications not expressly approved by the party responsible for compliance could void the userʼs authority to operate the equipment. This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter.
ISED
- Model Name：MRS3754-017, MRS3754-018, MRS3754-019
- IC: 11731A-MRS375400A
Notation Requirements：
- English notationThis device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:
- This device may not cause interference.
- This device must accept any interference, including interference that may cause undesired operation of the device.
Exposure information
MRS3754-XXX should be installed at a distance of at least 20 cm from the driver.
