The documentation and design guides on this page are available for immediate download.

SR1000 Series Technology Overview

This whitepaper serves as a primer on the differences between narrowband and UWBradios, as well as the technology of the SR1000 series radio. Contents include:

  • Ultra Wideband vs Narrowband Radios
  • Radio Architecture
  • Data Rate and Latency
  • Power Consumption
  • Interferer Robustness
  • Ranging
Evaluation Guide for the SPARK SR1010

This document describes how to evaluate the Spark SR1010, using the Spark Radio Evaluation Kit, including:

  • Hardware description and specifications
  • Presets to quickly evaluate the speed, current consumption,range, and audio performance
  • Application and antenna considerations and testing environments, including measured data from three test scenarios
  • Current consumption measurements
SPARK UWB Antennas

The antenna system plays a crucial role in the performance of a wireless radio system. The most important performance parameters of an antenna are its impedance matching, radiation pattern, realized gain, and radiation efficiency. Moreover, the antenna size is an important factor that need to be considered.A detailed review of the SPARK radio antenna systems, including:

  • UWB differential loop antenna, which is designed to provide a high radiation gain and maximum efficiency for long range applications.
  • Slot diversity antenna, which aims omnidirectionally around the antenna.
  • Antenna miniaturisation, presenting the trade-offs and some suggested antenna simulations.
  • The antenna simulations are performed in ANSYS HFSS, with the presence of the carrier board. This is important because the radiation patterns will be different with and without the motherboard.
How to calculate the power consumption of the SR1010 Radio

The SR1010 supports various data rates and sleep modes thanks to the duty cycling capabilities of the radio. This whitepaper describes how to calculate the power consumption of the radio in various circumstances.

SPARK Audio Solution

The SPARK audio solution is a complete hardware/software solution built to provide a reliable, low latency and uncompressed high quality audio link. The solution uses the SR1010 ultra-low latency high data-rate wireless transceiver, a NXP SGTL5000 low power stereo codec and a ARM Cortex-M4 based Atmel MCU running SPARK’s proprietary audio and wireless stack. Specifications include:

  • Configurable sampling rate: 24 kHz and 48 kHz
  • Configurable latency: 5 ms, 10 ms and 20 ms
  • Raw uncompressed 16-bit audio (no compression, no masking)

Timing Synchronization with the SR1010 Radio

Timing Synchronization with the SR1010 Radio

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Timing Synchronization with the SR1010 Radio

The SR1010 is an ultra-low power, high data-rate wireless transceiver that can be used to synchronize nodes in a wireless network to a high accuracy. This application note quantifies the achievable timing accuracy of the radio.

Spectral mask and range of the SR1010 Radio

Spectral mask and range of the SR1010 Radio

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The SR1010 operates in the ultra wideband (UWB) spectrum from, 3.1 – 6 GHz. Several regulatory bodies have defined power spectral density masks to limit allowable emissions. The white paper discusses how the spectral mask affects the range of the SR1010 radio.

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