Silicon Labs Makes SenseS I L I C O N L A B S | 1 1 - A P R - 1 8

A World-Class Design Culture

In 1996, a visionary group of engineers pioneered a new paradigm in RF integration by exploring the foundational principles of design.

The resulting insight and understanding into the very physics of combining RF with digital circuitry laid the foundation for a world-class design culture that remains at the heart of everything we do.

This methodical approach, combined with our knowledge of how and why things work allows us the deliver breakout hardware and software solutions.

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Leveraging Our 20 Year History into the Future

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RF Synthesizer

Fundamental breakthrough in mixed-signal and CMOS RF integration

1996

DAA

2018

Infrastructure

IoT

Access

Broadcast

MCU

Software & Sensors

Wireless connectivity

Automotive

Radio / TV Tuners

Timing

Isolation

Modem

PoE

SLIC

A Track Record of Disruptive Technologies

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5X SMALLER | GLOBAL 20X SMALLER | GLOBAL QUAD PROGRAMMABLE OSCILLATOR 10X SMALLER | LOW POWER

Modem TV Tuner Timing Bluetooth SiP Module

Oscillator Oscillator

Oscillator Oscillator

Multiple industry firsts, transforming and disrupting large markets Core competencies in mixed-signal and RF CMOS

Focus on high-quality, diversified markets

History of sound financial management with consistent growth and stability in turbulent markets

Well positioned for sustainable growth

621645

698769

2014 2015 2016 2017

About Silicon Labs

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REVENUE ($M)

2015, 2016 & 2017 MOST RESPECTED SEMICONDUCTOR COMPANY

FOUNDED IN 1996

LISTED SLAB

~35,000 CUSTOMERS

>1,600 PATENTS

A Wide Range of Sensors

Enabling existing and emerging application areas

TEMPERATURE HUMIDITY

LIGHT PROXIMITY ULTRAVIOLET HEART RATE

MAGNETIC

The only company bringing it all together

All supported by Simplicity Studio

Temperature & Humidity

Proximity & Gesture

UV / Ambient Light

Biometric / HRM

Magnetic

Microcontrollers

Wireless MCUs

Fixed Function

Security

Proprietary wireless

Sub-GHz and 2.4 GHz

ZigBee

Thread

Bluetooth

Wi-Fi

Sense Compute Connect

Silicon Labs HRM Solutions

Comprehensive HRM solutions encompassing all aspects of Optical HR monitoring

Module to simplify optical design

Integrated Photodiode

High performance Photodetector/ADC

LED drivers

LEDs integrated in package

High performance algorithm optimized for optical module

Low energy BLE + MCU solutions to run algorithms and customer code

Why Choose Silicon Labs HRM solutions?

I2C

Heart Rate

BLUE

BLE

or

Accelerometer

Heart Rate over BLE

Silicon LabsOptical Module

From optics to streaming HR over Bluetooth – a comprehensive, modular solution!

Silicon LabsOptical AFE

or

Complete, end to end solution

Shipped over 3 million HR sensors over the last 2 years

Experience with module and non-module solutions

Experience in supporting integration for customers with their own algorithm

Available with Silicon Labs’ own motion compensated HR algorithm

Solutions:

Si114x-AAGX : 2.9 x 4.9 x 1.2 mm module or 2x2 clear QFN

Integrated sensor and Green LED

Lowest Cost and Size

Si117x/8x - 3.7 x 7.0 x 1.1 mm module and 3x3 OQFN.

Best in class power and performance improvements

Supports ECG and optical measurements

Silicon Labs Optical HRM Overview

Si117x Module3.7 x 7.0 x 1.1 mm

Si1143 Module2.9 x 4.9 x 1.2 mm

Si118x OQFN3x3 mm

Motion compensated two chip HRM solution: Optical sensor plus an MCU with algorithm

Consumes around 500 µA (Si114x sensor, LEDs & MCU processing)

Module contains sensor + 1 green LED

Available with and without motion-compensated HR algorithm (requires external accelerometer)

Ideal for size and cost-constrained applications

Si1143/4

Si1143/442.9 x 4.9 x 1.2 mm

Si114x Block Diagram

Key System benefits

Ultra low power enabling continuous HRM monitoring

Under 50 µA for LEDs + Sensor

Under 100 µA for a total solution including MCU processing

Best in class SNR and speed enable detailed view of PPG waveform

Ease of use : Synchronization and buffer capabilities

Support single channel ECG measurements alongside optical measurements

Available in an integrated module (upto 4 LEDs) –Si117x or 3x3 clear QFN – Si118x

Si117x/8x: Enabling Best-in-Class Biometric Sensing

Si1170 Module3.7 x 7.0 x 1.1 mm

Si1180 OQFN3x3 mm

Si117x/8x Block Diagram

Supports continuous HRM with low current draw

Under 50 µA for LED + Sensor – for all day, motion compensated HR monitoring

Large Buffer to enable host MCU to sleep longer

2 kByte onboard FIFO

Support IR skin detection

Turn off non-IR LEDs when device is not worn

Saves power and improves user experience

Synchronization capabilities to enable truly autonomous operation

Can synchronize data collection between accelerometer and Si117x/8x autonomously

Support for most modern accelerometers with an interrupt

Enables multi detector architecture with multiple Si117x/8x

Si117x: Optimized for Low Power, Continuous HRM

High SNR enables PPG measurements in challenging conditions

High sample rate – view details in PPG waveforms

Pulse volume

Highly configurable – tradeoff power/performance as appropriate

4 full scale ranges

Integration times from µs to seconds

4 independent configurable LED drivers

Support for external Photodiodes

Use for PPG or ALS/UV

Si117x: PPG Performance

0

20

40

60

80

100

120

0 50 100 150 200 250 300

SNR

[d

B]

Integration Time [μs]

Si117x SNR

Single Channel ECG measurement capabilities

Optimized for dry electrodes

Differential input impedance of 40 MΩ

Noise performance comparable to standalone devices

23 µV pk-pk

Measure ECG on same time base as PPG measurements

Supports high sampling rates

Sample at up to 500 Hz

Si1172: ECG Capabilities

Demonstration platform

Si1171/Si1144 HRM sensor module

Overlay/Optical cover

EFM32BG with 1 M Flash/256K RAM

Outputs standard GATT BLE Profile

Android Triple Heart application

Allows you to simultaneously capture data from multiple devices

HRM Evaluation Watch

Allows for simple evaluation of PPG and ECG functions on wrist

Isolated I2C connection for optimal performance

Dry copper electrodes on top and bottom

Allows wrist to fingertip performance evaluation

Compatible with Si117x/8x GUI

ECG Evaluation Kit (Si1172-ECG-KIT)

Si117x Collateral Overview Category Description Notes

Do

cum

entatio

n

Si1171/5 Data Sheet NDA required

AN1038 Programmers’ Guide, NDA required

AN1049 Hardware and Optical Design Guide

UG258 & UG292 117x PPG and ECG EVB users’ guide

Watch

The watch EF32BG based, 1 M ROM, 256 k RAM, BLE stack2.0

Treadmill Test Report

Watch HRM firmware HRM + Binary update only; for HRM performance evaluation and raw data capture

Watch Data logger and PC GUI Binary update only; For raw data capture with user configuration; . The PC GUI can configure the data logger and save the data log.

Triple Heart Android Apps to log 3 devices Heart Rate simultaneously, normally Silicon Labs Evaluation watch, reference watch and chest strap

Users’ Guide for the watch and Triple Heart

STK

Si117XG2-KITSi117XE2-KITSi1172-ECG-KIT

Need to pair with WSTK

Sample HRM Project Runs on the Wireless STK, the above Kit plugs into the Wireless STK

Data logger ProjectPC GUI

Driver code and examples on how to stream data. The PC GUI can configure the data logger , plot data in real time, and save the data log. Same PC GUI for the watch

The Si117x GUI allows you to do the following

Configure key parameters and load them into an Si117x device

Load configurations from pre-programmed devices

Save and load configurations from files

Plot PPG waveforms in real time and save the data to a CSV file

Enablement: Software

OPN Features Comments

Si1171xy-B2-GM Optical PPG only. No support for Silicon Labs HRM Algo. 4 LED configurations available. Look at xy detail below

Si1172xy-B3-GM Optical PPG only. Includes support for Silicon Labs HRM Algo. 4 LED configurations available. Look at xy detail below

Si1173I3-B2-GM Optical PPG + ECG. No support for Silicon Labs HRM Algo. 2 Green (300 mA) + 1 IR LED. Supports Invisible skin detection using IR LED

Si1175xy-B2-GM Optical PPG only. Includes support for Silicon Labs HRM Algo.

LED configurations (substitute xy above for these letters to get actual part number)

E2 2 Green LEDs (100 mA each) Lowest Cost Option

G2 2 Green LEDs (300 mA each)

I3 2 Green LEDs(300 mA) , 1 IR LED Supports Invisible skin detection using IR LED

I5 2 Green LEDs(100 mA) , 1 IR LED Supports Invisible skin detection using IR LED

K1 1 Green LEDs (300 mA), 1 IR LED, 1 Red LED

Si1181 – 3x3 Clear QFNs with PD + Photodiode

Si1181-B2-GM Optical PPG Sensor only. 4 integrated LED drivers For highest flexibility

Si1181-B2-GM Optical PPG + ECG Sensor only. 4 integrated LED drivers For highest flexibility

List of available Si117x Options

Si1143/4-AAGX

Smallest size : integrated module with LED, PD, optics and AFE/ADC in 2.9x4.9 mm module

Lowest cost

Single Green LED

Available with or without motion-compensated HR algorithm

Si117x

Integrated module with LEDs, PD, optics and AFE/ADC in 3.7x7.0 mm module

Best in class power and performance

Support for multiple LEDs and ECG

Available with or without motion compensated optical HR algorithm

Si118x

Highest flexibility with 3x3 clear QFN package. Includes PD, AFE/ADC, and ECG support

Design your own optics/module

Summary

Thank you