AIRTOUCH AT60MF1T1RP32A 60GHz Millimeter Wave Radar Sensor User Manual

AIRTOUCH AT60MF1T1RP32A 60GHz Millimeter Wave Radar Sensor

Specifications

• Model: AT60MF1T1RP32A
• Power: 3.3V
• Size: Small-size module

FAQs

• Q: What are the recommended working parameters for the AT60MF1T1RP32A sensor?
  • A: The recommended working parameters can be found in section 5.1 of the product data manual.
• Q: In which fields can the AT60MF1T1RP32A module be used?
  • A: The module can be widely used in smart homes, security, gesture recognition, BSD, vital signs detection, and other fields as mentioned in the product brief introduction.

Product Overview

• The AT60MF1T1RP32A is a small-size module based on the AT60MF1T1RP32A series chip launched by Gekong (Shanghai)Intelligent Technology Co., Ltd.
• For industrial and consumer markets, it is expected to provide the market with the best cost-effective solution with small size, low power consumption, and high performance.

Product feature

radio

• Operating frequency 59-64GHz
• Built-in 1T1R antenna
• The transmission power is adjustable and the maximum output is 11dBm
• Built-in 0°/180°BPM phase shifter
• Supports 5GHz continuous sweep frequency
• NF 12dB@ maximum gain
• Phase noise -90 DBC /Hz@1MHz
• Built-in waveform generator supports 8 preset waveforms
• 5Msps/10Msps 16bit real sampling ADC

Handler

• ARM® Cortex-M0+core
• The main frequency is up to 160MHz
• 2 x 16KByte can be configured as ICache for SRAM
• 192KByte SRAM( 含2 × 32KByte Retention SRAM)

Accelerator

• 1 × Up to 1024 point FFT arithmetic accelerator
• 2×1D CA-CFAR pre-detector

Digital interface

• 1×UART
• 3×PWM、3×ADC、3×GPIO
• FLASH
• Inner seal Quad-SPI 512KByte FLASH

Ordering Information

Revision history

Product Brief Introduction

• AT60MF1T1RP32A is a small-size module based on the AT60MF1T1RP32A series chip (built-in 1T1R_AIP antenna) launched by Airtouch(Shanghai) Intelligent Technology Co., Ltd for industrial and consumer markets, which is expected to provide the market with the best cost-effective solution with small size, low power consumption, and high performance.
• The AT60MF1T1RP32A chip has a complete input-to-transmit link and ADC converter, and the transmitter has a 0°/180° BPM phase shifter function, providing a maximum RF output power of 11dBm; The receiver channel can also be flexibly configured through the flexible combination of programmable gain and highpass/ low-pass filters, which can easily cope with different sweep slope application scenarios.
• The AT60MF1T1RP32A chip supports a highly configurable waveform generator that supports up to eight different sweep waveform combinations, and the parameters of each sweep waveform can be flexibly configured. The use of composite waveform modes provides greater configuration flexibility in interference suppression and low power mode selection.
• The AT60MF1T1RP32A chip has a built-in ARM® Cortex-M0+ core processor, supports SPI, I2C, UART, and other communication interfaces, and consists of a complete SoC system through built-in FLASH, which supports low power mode and Memory Retention function.
• The AT60MF1T1RP32A module can be widely used in smart homes, security, gesture recognition, BSD vital signs detection, and other fields.

Main Features

The AT60MF1T1RP32A module has the following features:

• Radio
  • Operating frequency 59-64GHz
  • Built-in 1T1R antenna
  • The transmission power is adjustable and the maximum output is 11dBm
  • Built-in 0°/180°BPM phase shifter
  • Supports 5GHz continuous sweep frequency
  • Phase noise -90 DBC /Hz@1MHz
  • Built-in waveform generator supports 8 preset waveforms
  • 5Msps/10Msps 16bit real sampling ADC
• Handler
  • ARM® Cortex-M0+kernel
  • The main frequency is up to 160MHz
  • 2×16KByte can be configured as I-Cache for SRAM
  • 192KByte SRAM(contain 2×32KByte Retention SRAM)
• Accelerator
  • 1×Up to 1024 point FFT arithmetic accelerator
  • 2×1D CA-CFAR detector
• Port
  • 1×UART
  • 3×PWM、3×ADC、3×GPIO
• FLASH
  • Internal Quad-SPI 512KByte FLASH

Pin definition

AT60MF1T1RP32A radar module reserved 22PIN (11 x 2 double-row semicircular holes, spacing 1.1mm). Figure 3.1 shows the module pin definition diagram, and Table 3.1 shows the pin definition and description.

Table 3.1 Module pin definition and description

L

5| M5| I/O| M5 / PWM4 / ADC2| Multifunctional foot| L
6| M7| I/O| M7 / Radar_RX| UART_Rx foot（Download port）| H
7| M6| I/O| M6 / Radar_TX| UART_Tx foot（Download port）| H
8| M3| I/O| M3 / SPI_D1| SPI D1 bit Indicates pin 1 of the SPI interface| L
9| M8| I/O| M8| Multifunctional foot| H
10| A1| I/O| A1 / PWM1 / ADC1| Multifunctional foot| L
11| A5| I/O| A5 / SPI_D2 / SWC| SPI D2 bit Indicates data pin 2 of the SPI interface. SWC indicates the debug pin|
12| A2| O| Module output pin| Can PWM output| L
13| A6| I/O| A6 / SPI_D3 / SWD| SPI D3 bit Indicates pin 3 of the SPI interface data. SWD indicates the debug pin| L
---|---|---|---|---|---
14| M9| I/O| M9| Multifunctional foot| H
15| A3| I/O| A3 / I2C_SCL| Can be used as an I2C interface clock signal pin| H
16| A4| I/O| A4 / I2C_SDA| Can be used as an I2C interface clock data pin| H
17| A0| I/O| A0 / PWM0 / ADC1| Can be used as an interrupt input pin| L
18| GND| P| Module grounding pin| Work gnd|
19| VDD| P| Module power supply pin| DC 3.3V ±0.15V (typical)*|
20| M1| I/O| M1 / SPI_CS| SPI CS bit Indicates the SPI interface chip selection pin| H
21| M0| I/O| M0 / SPI_CLK| SPI CLK bit Indicates the clock pin of the SPI interface| L
22| GND| P| Module grounding pin| Work gnd|

Power supply limit voltage +5.5V, exceeding or equal to the upper voltage will damage the chip, seriously damaging the chip.

Schematic

The typical application schematic diagram of the AT60MF1T1RP32A module is shown in Figure 4.1. If you need more detailed design information, please contact our business department.

Electrical characteristics

Recommended Working Parameters

Table 5.1 lists the main parameters of the AT60MF1T1RP32A module.

Table 5.1 Main parameters of the AT60MF1T1RP32A module

Absolute Maximum rated parameters
The absolute maximum rating is a condition that must not be exceeded, even for an instant, otherwise it may lead to reduced IC performance or even permanent damage. Table 5.2 shows the absolute maximum rated parameters of the AT60MF1T1RP32A module.

Table 5.2 Absolute maximum rated parameters of the AT60MF1T1RP32A module

RF Performance Parameters

Table 5.3 lists the main performance parameters of the RF transmitter of the AT60MF1T1RP32Amodule.Table 5.3 Main performance parameters of the RF transmitter.

UT

| —| 10| 11| dBm| —
Frequency range| FRI| 59| —| 64| GHz| —
---|---|---|---|---|---|---
Phase shifter| —| —| 1| —| 1bit| 180°
Phase shifter mean square error| —| —| 1.5| —| °| —

Table 5.4 lists the main performance parameters of the RF receiver of the AT60MF1T1RP32A module.

Table 5.4 RF receiving performance parameters

List of key components

SMD-

crystal oscillator

| X1| 2016| 40MHz CL=8pF ±15ppm| 1
SMD-

inductor

| L1| 2016| 4.7uH±20% DCR≤200mΩ IDC≥1A| 1

Module size

• The following figure 7.1 is the specification and size diagram of the module.
• The length and width of the module are 14 mm * 9 mm, and the PCB thickness is 1.0mm.

Power-on sequence

After the module is powered on, the OUT pin outputs a high level after a delay of 4mS, a low level after a delay of 1.85S, and enters normal induction mode after a low-level delay of 1.5S (where the first 0.5S is the software initialization time). The following Figure 8.1 is the sequence diagram of the control signal after the module is powered on:

Schematic diagram of detection range

The sensitivity of the radar sensor can be configured by modifying the software parameters. The forward limit sensing distance is about 12 meters, and the actual sensing distance can be adjusted according to the needs. Radar ranging data diagram of the following typical scene (outdoor open field, with a distance of 8 meters). If the sensitivity is set higher, the detection range will be larger accordingly. Figure 9.1 below records the distance data detected by human movement at different angles (the distance tested by different field environments will be biased).

( Unit: meter)

Precautions

• When installing the antenna, avoid metal shells or components on the front of the antenna to prevent signals from being shielded. Shielding materials such as plastic or glass are allowed.
• However, the shielding materials should not be close to the front of the antenna.
• For example: in 1.5mm thick PC (polycarbonate) material, the distance between the 60G module antenna surface needs to be an integer multiple of 2.5mm,
• For example, 2.5mm / 5.0mm / 7.5mm.
• Try to avoid pointing the radar antenna directly towards large metal equipment or pipes.
• When installing multiple radar modules, ensure that the antennas of each radar module are parallel to each other as far as possible, avoid direct irradiation between the antennas, and maintain a spacing of more than 1m between the modules.
• The radar sensor should avoid facing the AC drive power supply and stay away from the rectifier bridge of the drive power supply as far as possible, so as not to interfere with the radar signal with the power frequency.

Disclaimer

• The software or documentation provided by GST (Shanghai) Intelligent Technology Co., Ltd. is intended to be used by you (our customer) only and exclusively on the products licensed or sold by the Company.
• The software or documentation is for our company and/ or owned by its suppliers and protected by applicable copyright laws.
• The Software or documentation is provided “AS is” without warranty, whether express, implied, or statutory.
• These warranties include but are not limited to, implied warranties of merchantability and fitness to apply this document for a particular purpose.
• In no event shall the Company be liable for any special, incidental, or consequential damages caused by any cause.
• The Company reserves the right to modify the content of the document or software without notice to the reader, and the Company does not assume any responsibility for any effects arising from the use of the software.

Contact us

• As the world’s leading expert in smart sensor chips, Airtouch(Shanghai) Intelligent Technology Co., Ltd. focuses on high-performance radio frequency technology, microwave millimeter wave technology, radar sensor technology, low-power MCU technology, and SOC technology, defines and develops the world’s leading “Me First” chip products.
• Provide cost-effective chip, algorithm, software, and module complete solution. 5.8GHz, 5.8GHz, 24GHz, 60GHz, and 77GHz series radar sensor chips in the company’s product line, as well as “BLE+ radar” dual-mode chips, dedicated MCU chips, and other products.
• It is widely used in intelligent Internet of Things (IoT), smart lighting, smart home appliances, smart home and smart city management, and other fields.
• Welcome to contact Jiekong (Shanghai) Intelligent Technology Co., LTD., we look forward to communicating with you in detail!
• You can visit our home page (www.airtouching.com) for more information. You can also contact us at the following contact details or leave us a message:

Please pay attention that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator & your body. This equipment used on satellites, and aircraft is prohibited.

References

• 隔空科技AIRTOUCH_单芯片微波雷达传感器全球先行者

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