Ultra-low Power Sensor Hubs

Available as Catalog or Fully-customizable Solutions, Ideal for Always-on Context Awareness

Always-on Context Awareness

Smartphone & wearable OEMs and mobile application developers envision a near-term future where our mobile devices, even when idle, are always aware of our activities and surroundings. Called Always-on Context Awareness, this is delivered through the fusion of data from a number of sensors in a device.

QuickLogic ArcticLink® 3 S1 Ultra-Low Power Sensor Hub Overview

OEM Sensor Hub Requirements

QuickLogic’s ArcticLink 3 S1 Ultra-low Power Sensor Hub (ULPSH) is the first device to meet the power thresholds and support the sensor processing functions required to make always-on sensing in smartphones, wearables and tablets a mainstream reality. Supporting run-time re-configurablity, the ULPSH supports the use of multiple sensor algorithms for different contexts (walking, running, phone in pocket/hand, etc...).

QuickLogic Introduces the New ArcticLink 3 S1 at Globalpress 2013

Power Consumption

Less than 2% of system battery life

OEMs desire always-on context awareness, but only at less than 2% of system battery life – QuickLogic’s ArcticLink 3 S1 enables that

arcticlink3s1 graph

OS Support

The ArcticLink 3 S1 CSSP Sensor Hub is fully compatible with the Android OS (including Lollipop 5.0). QuickLogic provides standard Android driver libraries to allow for quick integration to an OEM system.

Device Highlights

Sensor Hub Architecture


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sensor hub 2
sensor hub 3
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sensor hub 5
Communication Manager
  • Optimized data path to the application processor using SPI or HID over I²C
  • Smart FIFO prevents FIFO overrun: intelligent to interrupt latency
Flexible Fusion Engine (patent pending)
  • Finite state machine plus CISC-based Arithmetic Logic Unit processes all sensor data
  • Optional change detector for always-on context awareness
  • High speed, accurate, processing of multi-axis sensor data for motion sensor fusion
Sensor Manager
  • Microcoded state machine and multi-second data buffer for programmable sensor management
  • Low power I²C controller with dynamic pull-ups to reduce wasted I/O power
  • QuickLogic maintains a comprehensive qualified vendor list

Integrated Development Environment

Software, sensor and sensor algorithm engineers can customize the functionality of the ArcticLink 3 S1 through QuickLogic’s Integrated Development Environment (IDE) and Development Board. The IDE, called the Flexible Fusion Engine Algorithm Tool (FFEAT), enables engineers to:

  • Quickly and easily develop code and algorithms
  • Compile to the ArcticLink 3 S1 ultra-low power sensor hub architecture
  • Simulate results accurate to the clock cycle
  • Perform real-time hardware debug


FFEAT is specifically tailored for engineers familiar with sensor algorithms and software, these tools speed time-to-market by providing an abstraction layer between the sensor algorithms and software (typically expressed in a C-like language) and the hardware implementation. The IDE and Development boards supports algorithm development and real-time board-level debugging, and can be used to port internally-developed or properly-licensed 3rd party sensor algorithms to the sensor hub.


For access to FFEAT, contact QuickLogic.



Sensor Development Boards

QuickLogic’s Sensor Hub Development Boards complement FFEAT by providing a proven hardware platform for sensor hub hardware development, testing, and debugging. The boards were designed with platform flexibility in mind, supporting connectivity to host systems in a variety of ways, including PC via USB and directly to a DragonBoard by Qualcomm. The boards also have flexible connectors that can be used to connect 3rd party sensor boards for easy sensor bring-up, algorithm development and hardware debug.


The ArcticLink 3 S1 is available in multiple configurations

ArcticLink 3 S1

The standard ArcticLink 3 S1 CSSP contains all the necessary system blocks for customers to port their code into. This flexible design allows customers to choose 1 or multiple algorithms that best suit their use cases and needs. QuickLogic's Integrated Design Environment provides a hardware and software environment for porting OEM- or 3rd party-developed algorithms into the sensor hub. 

Browse the Product Table

S1 Wearables Sensor Hub

The needs of wearable OEMs differ from that of other markets -- the S1 Wearables Sensor Hub Catalog CSSP offers wearable-specific use cases and contexts, delivering the maximum user experience at the ultra-low power levels required for long battery life.

Learn more about S1 Wearables Sensor Hub

Always-on Context Aware Sensor Hub

A catalog version of the ArcticLink 3 S1, this device is available off-the-shelf running Sensor Platform Inc.’s FreeMotion™ library, providing always-on context awareness below the 2% of system power OEM threshold.

Learn more about Always-on Context Aware Sensor Hub

Sensor Hub Catalog CSSP Demo

Product Table

Product ArcticLink 3 S1 ( WLCSP package) ArcticLink 3 S1 ( VFBGA package)
Embedded PSBs Flexible Fusion Engine, Sensor Manager, Communication Manager
Logic Cells 1,019
RAM Module Size 8K
I/O Flip-flops 164 220
Flip-flops 1,019
Max Gates 175,000
Max GPIOs 18 46
Core Voltage 1.2V
I/O Voltages 1.8V, 2.5V, 3.3V
Pin Count 30 64
Pitch (Ball/Lead) 0.4mm 0.4mm
Package Dimensions 2.09mm x 2.54mm 3.5mm x 3.5mm
MSL 1 3

Ideal for Smartphones

The ArcticLink 3 S1 Sensor Hub CSSP is ideal for smartphones where sensor algorithm and subsystem management is paramount to a great user experience, with either off-the-shelf or OEM-developed sensor algorithms

Ideal for Wearable Devices

The ArcticLink 3 S1 Sensor Hub CSSP is ideal for wearable devices where sensor management must be performed at the lowest power possible

Ideal for Tablets

The ArcticLink 3 S1 Sensor Hub CSSP is ideal for tablets that require 9-axis context awareness 


Have a Question?

If you have questions for our solution experts, please contact us!