User's Manual

4
Reference design 60 GHz radar FF module
User manual and integration instructions
Introduction
1 Introduction
Motion sensing is a standard feature present in many devices. Today’s devices become smarter by knowing if the
user is around or not. Traditionally, motion sensors have been designed using passive infrared sensing (PIR). As
simple as PIR is, there are performance limitations. For example, PIR sensors cannot detect micro motions. In
addition, they require a lens, whereas radar sensors can be covered and disguised behind plastic enclosures.
Infineon’s presence detection sensor module integrates 60 GHz mmWave technology. The module simplifies
the implementation of mmWave sensors in the band of 61.0 to 61.5 GHz, and it includes the ARM® Cortex®-M4F
based processor system, 1TX 3RX antennas and onboard regulator. This presence detection sensor module
targets low-power and high-resolution presence detection in smart home, office, and diverse other use cases.
1.1 General features
 ARM® Cortex®-M4F 150 MHz, 1024 kB Flash, 288 kB RAM
 Built-in antennas (1TX 3RX)
 Built-in regulator
 UART interface and GPIOs
 3.6~5 V power input
 26-pin pitch 1.27 mm castellated holes
 Dimensions: 20 x 15 x 2.3 mm
Figure 1 60 GHz radar form factor module
1.2 Presence detection features
 Low power and high resolution
 Presence sensing for home, office and commercial buildings
 Adjustable detection range
 Field of view of radar: azimuth: ±45 degrees/elevation: ±40 degrees
 Immune to environmental factors such as temperature, wind, sunlight and dust/debris
 Detection range:
o Detection up to 10 m for macro motion (1)
o Detection up to 5 m for micro motion (2)
(1) Macro motion: Human movements.
(2) Micro motion: Stationary human (normally breathing and blinking eyes) in sitting or standing position with no active
movements for at least 30 s.