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ICU-10201 HIGHLIGHTS

ICU-10201 is a high-performance, miniature, ultra-low power,

long-range ultrasonic Time-of-Flight (ToF) transceiver. Based

on Chirp’s patented MEMS technology, the ICU-10201 is a

system-in-package that integrates a nominally 175 kHz PMUT

(Piezoelectric Micromachined Ultrasonic Transducer) together

with a 2

nd generation ultra-low power SoC (System on Chip) in

a miniature, reflowable package.

The SoC is designed for overall low system power and for ease

of use with external host processors. Low power is achieved

through custom digital circuitry to process and buffer the raw

sensor readings. This keeps the integrated microcontroller in a

low power idle state until needed. For ease of use, the

microcontroller can process the raw sensor readings into high

level signals, such as range to nearby target(s), or events, such

as presence, which can be directly read by the host processor.

The SoC communicates with the host processor over SPI at up

to 13 MHz at either 1.8 or 3.3 V.

Complementing Chirp’s other ultrasonic ToF sensor products,

ICU-10201 provides accurate range measurements to targets

at distances up to 1.2 m. Based on ultrasonic pulse-echo

measurements, the sensor works in any lighting condition,

including full sunlight, and provides millimeter-accurate range

measurements independent of the target’s color and optical

transparency. The sensor’s Field-Of-View (FOV) can be

customized using a horn. ICU-10201 is capable of simultaneous

range measurements to multiple objects in the FOV. Several

available algorithms can further process the echo information

for a variety of usage cases in a range of applications (listed

below).

APPLICATIONS

? Floor type detection for robotic vacuums

? Cliff detection for robotic vacuums

? <1 m presence detection

? 3D tracking

? Pitch-catch ranging between wireless nodes

FEATURES

? Fast, accurate range-finding

? 40 MHz integrated CPU enables on-chip

algorithms including rangefinding, human

presence, and wake-on approach

? Operating range from 10 cm to 1.2 m

? Detection of moving objects closer than 10cm

? Programmable modes optimized for long or

short-range sensing applications

? 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, clear plastics etc.)

? Easy to integrate

? Single sound port for receive and transmit

? 1.8 V or 3.3 V I/O voltage

? Low power 1.8V core operating voltage

? 13 MHz SPI interface allows baseband data

stream out at full measurement rate

? Optional 32 kHz reference clock input

? Optional measurement clock input

? Two programmable open drain I/O for

triggering the sensor or waking the host

? Platform-independent software driver enables

turnkey range-finding

? Field of view can be customized through design

of the acoustic port

? Miniature integrated package

? 3.5 mm x 3.5 mm x 1.26 mm, 14-pin LGA

? Compatible with standard SMD reflow

? Operating temperature range: -40°C to 85°C

? Low supply current

? 1 sample/s:

o 14 μA (0.5 m max range)

o 17 μA (1 m max range)

? 50 samples/s:

o 212 μA (0.5 m max range)

o 320 μA (1 m max range)