This application note explains the fundamentals of swept-tuned, superheterodyne spectrum analyzers and discusses the latest advances in spectrum analyzer capabilities.

The BT SDK contains everything you need to build applications for the following dual mode (BR + EDR + BLE) Bluetooth 5.0 core spec compliant solutions: CYW20706, CYW20719B2, CYW20721B2, CYW20735B1, CYW20819, CYW20820, and CYW89820. The SDK, along with the ModusToolbox IDE and configurator tools, form a powerful but easy to use toolset that helps you create amazing Bluetooth-enabled IoT solutions like beacons, trackers, smart watches, audio devices (headsets, speakers), hid devices (remotes, mice, keyboard), medical devices, and home automation platforms. 

Friday, 16 October 2020 17:01

车联网标准现状

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汽标委车联网标准体系--现有标准及项目
ST is launching today the BlueNRG-LP, the first Bluetooth Low Energy SoC to support 128 concurrent connections. It is also our first device to receive the Bluetooth Low Energy 5.2 certification. The BlueNRG-LP supports features such as Long Range, 2 Mbps transfers, and advertisement extensions, to name a few. Additionally, it draws from previous architectures to offer the broadest dynamic range ever on an ST Bluetooth chip. To achieve such a level of performance and optimization, our teams focused on the SoC’s radio and the microcontroller. The latter is now a Cortex-M0+ running at 64 MHz and it uses 64 KB of RAM. Comparatively, the BlueNRG-1 and BlueNRG-2 rely on a Cortex-M0 at 32 MHz and 24 KB of RAM. The new device also has a one-time programmable memory area for security purposes.
Dialog Semiconductor’s First Combo Wi-Fi and BLE Module Points the Way for a New Wave of IoT Connectivity
Two-in-one module leverages the new DA16200 VirtualZero™ Wi-Fi technology with SmartBond™ TINY DA14531 Bluetooth for best-in-class battery life with ease of configurability
 
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The outdoor sensor unit(s) for automatic home or building HVAC systems provide outdoor data from one or multiple bearings (North, East, West, South) to a master actuator. This can be one or all of the following data:​

  • Outdoor air quality (OAQ according to the Environmental Protection Agency)​
  • Temperature and relative humidity (degrees, percentage)​​
  • Light/Sun (lux)​​
  • Barometric pressure (mbar)​​

This reference design offers a Bluetooth® 5.0 SimpleLink™ option with better industrial noise immunity, more range, and less power for industrial applications such as power tools that operate from a 5- cell Li-ion battery. This power stage reference design uses a single Bluetooth low energy (BLE) MCU for both wireless connectivity and three-phase brushless DC (BLDC) motor trapezoidal control, designed in a single board, reducing the BOM and hence overall cost. The design demonstrates the BLE RX sensitivity of –96 dBm even when the power stage is driving motor, showing the robustness of RF performance. The design also demonstrates a small form factor power stage with overcurrent and short-circuit protection by MOSFET VDS sensing.

This reference design enables a wearable, optimized saturation of peripheral capillary oxygen (SpO2) and multi-sensor, multi-wavelength optical heart rate monitor (HRM). It uses AFE4420 device, which is a single-chip, bio-sensing front end for photoplethysmography (PPG) measurements. It supports up to four switching light-emitting diodes (LEDs) and up to four photodiodes to enable signal acquisition of up to 16 Phases. The CC2640R2F device (supporting Bluetooth® low energy 4.2 and 5) transfers the measured data to a remote location. This patient-monitoring design uses a single CR3032 battery with a 30-day life cycle. Raw data is available to calculate heart rate, SpO2, and other related parameters. 2 onboard light-emitting diodes (LEDs) identify low-battery detection and a Bluetooth connection.

Car access has become more convenient as design engineers take advantage of technologies that are widely used in other applications. The automotive industry has evolved from providing mechanical keys to unlock vehicles to fobs with buttons that can unlock vehicles. Now, the most common form of car access revolves around passive entry passive start (PEPS) systems, enabling drivers to enter their car but also start the engine without physically using a key.

This satellite module reference design is intended for Bluetooth® low energy passive entry passive start (PEPS) and phone as a key / digital key car access systems. The design demonstrates how control area network flexible data rate (CAN-FD) communication capabilities can be implemented with our Bluetooth wireless MCUs for systems that require higher bandwidth in-vehicle networking communications. Further benefits include reduced power consumption in the sleep state, our CAN auto-addressing method for improved manufacturing, connection monitor capabilities for improved Bluetooth localization accuracy and a compact printed-circuit board (PCB) capable of measuring Bluetooth angle of arrival (AoA) and received signal strength index (RSSI).
Ti integrated circuits and reference designs help you design passive entry passive start (PEPS) modules and key fobs that are secure and compact while reducing system power consumption and optimizing RF and vehicle 
 
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