TDK InvenSense ICU-20201 Time-of-Flight (ToF) Range Sensor
TDK InvenSense ICU-20201 Time-of-Flight (ToF) Range Sensor is a miniature, ultra-low power, and long-range ultrasonic sensor based on Chirp's patented MEMS technology. This sensor integrates an 85kHz Piezoelectric Micromachined Ultrasonic Transducer (PMUT) with a 2nd generation ultra-low power System on Chip (SoC) in a reflowable package. The ICU-20201 sensor offers accurate range measurements to targets at distances up to 5m. This sensor can operate in any lighting condition, including full sunlight to complete darkness. The ICU-20201 sensor features a customizable Field-Of-View (FOV) up to 180°. This sensor also features multi-object detection, a single sound port for receiving and transmitting, flexible 1.71V to 3.63V I/O voltage, and a 13MHz SPI interface.
The ICU-20201 sensor features a customizable Field-Of-View (FOV) up to 180°. This sensor also features multi-object detection, a single sound port for receiving and transmitting, flexible 1.71V to 3.63V I/O voltage, and a 13MHz SPI interface. The ICU-20201 sensor is used in smart door lock wake-on-approach, wall following, obstacle avoidance, parking lot sensors for vehicle counting, and ground level measurement in drones.
Features
- Fast and accurate range-finding:
- 40MHz integrated CPU enables on-chip algorithms, including rangefinding, human presence, and wake-on approach
- 20cm to 5m operating range
- Closer than 20cm moving objects detection
- Up to 180° customizable Field-Of-View (FOV)
- Multi-object detection
- Works in any lighting condition, including full sunlight to complete darkness
- Insensitive to object color, detects optically transparent surfaces
- Easy to integrate:
- Single sound port for receiving and transmitting
- Flexible 1.71V to 3.63V I/O voltage
- 13MHz SPI interface allows baseband data stream out at full measurement rate
- Low power 1.8V core operating voltage
- Two programmable open-drain I/O for triggering the sensor or waking the host
- Optional 32kHz reference clock input
Specifications
- Electrostatic Discharge (ESD):
- 2kV maximum Human Body Model (HBM)
- 500V maximum Charge Device Model (CDM)
- 90%RH relative humidity, storage
Applications
- Low power user presence in consumer electronics
- Parking lot sensors for vehicle counting
- Obstacle avoidance and wall-following
- Smart door lock wake-on approach
- Ground level measurement in drones
Block Diagram
Associated Products
TDK InvenSense DK-x0201 Development Kit
Designed around Atmel's SAMG55 MCU and includes an on-board embedded debugger.
TDK InvenSense EV_ICU-20201-00 Evaluation Board
Includes the ICU-2021 ultrasonic sensor device with PCB, two capacitors, and a connector.