TDK InvenSense Chirp Products
TDK InvenSense Chirp Products are a family of miniature and ultra-low power ultrasonic Time-of-Flight (ToF) range sensors and modules based on MEMS technology. These sensors feature a system-in-package that integrates a Piezoelectric Micromachined Ultrasonic Transducer (PMUT) with an ultra-low-power System on Chip (SoC) in a miniature, reflowable package. The CH101 and the CH201 sensors can detect multiple objects, work in any lighting conditions, including full sunlight, and provide millimeter-accurate range measurements. The Chirp family products include ultrasonic sensor modules, development kits, and software, depending on the application requirements.
Features
- CH101
- 4cm to 1.2m operating range
- 1mm RMS range noise at 30cm range
- Ultra-low supply current
- 1 sample/s
- 13µA (10cm max range)
- 15µA (1m max range)
- 30 samples/s
- 33µA (10cm max range)
- 130µA (1m max range)
- 1 sample/s
- CH201
- 20cm to 5m operating range
- Ultra-low supply current
- 1 sample/s
- 7.5µA (1m max range)
- 13.5µA (5m max range)
- 25 samples/s
- 63µA (1m max range)
- 247µA (5m max range)
- 1 sample/s
- Fast and accurate range-finding
- Customizable Field of View (FoV) up to 180°
- Multi-object detection
- Works in any lighting condition, including full sunlight to complete darkness
- Insensitive to object color, detects optically transparent surfaces (glass and clear plastics)
- Easy to integrate
- Single sensor for receive and transmit
- 1.8V single supply voltage
- I2C fast-mode compatible interface and data rates up to 400kbps
- Dedicated programmable range interrupt pin
- Platform-independent software driver enables turnkey range-finding
Applications
- CH101
- Mobile and computing devices
- Printers and scanners
- Proximity sensing
- Smart home
- Presence detection
- Always-on sensing to lock/unlock and power on/off notebooks, tablets, and white goods
- CH201
- Obstacle avoidance
- Gesture control
- Robotics and drones
- User presence in-home/building automation and personal electronics
- Liquid level sensing and shelf inventory monitoring
- Ultra-low-power remote presence-sensing node
Specifications
- 1.62V to 1.98V operating voltage range
- 3.5mm x 3.5mm x 1.26mm dimensions
- 8-pin LGA package
- 60ms programming time
Resources and Support
SENSORS
Chirp Microsystems SonicLib Programmer’s Guide
MODULES
EV_MOD_CH101-03-01 Retrofit with 45° FoV Horn
AH-10133-045045MR Acoustic Housing Brief
DEVELOPMENT KITS
Quick start guide for SonicLink and SmartSonic Development Kit
CH101 and CH201 SmartSonic Evaluation Kit User Guide
Videos
CH101 Products
TDK InvenSense CH101 Distance Sensor
Ultra-low-power ultrasonic ToF range sensors that are based on Chirp’s patented MEMS technology.
TDK InvenSense DK-CH101 SmartSonic™ Platform
A comprehensive development platform for CH-101, a miniature ultrasonic time-of-flight range sensor.
TDK InvenSense MOD-CH101 Ultrasonic ToF Sensor Module
Integrates a PMUT with an ultra-low-power SoC in a miniature, reflowable package.
TDK InvenSense MOD_CH101 Distance Sensor Module
Functional for prototyping and small-scale production that is not extremely space-constrained.
CH201 Products
TDK InvenSense CH201 Distance Sensor
Ultra-low-power ultrasonic ToF range sensor that is based on Chirp’s patented MEMS technology.
TDK InvenSense DK-CH201 Distance Sensor Development Tool
Designed to evaluate CH201 sensor an ultra-low-power and long-range ultrasonic ToF range sensor.
TDK InvenSense MOD_CH201 Distance Sensor Module
Designed for CH201 sensor an ultra-low-power and long-range ultrasonic ToF range sensor.