ISL79987-WAND

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Evaluation and Demonstration Boards and Kits are a great way to get started with specific transceiver platform designs and protocol technology. ISL79987-WAND, offered by Intersil, is one such transceiver boards and kits that is designed to help in the evaluation, development and demonstration of Low Power Wireless Display (LPWD) applications. This article will provide a brief overview of the ISL79987-WAND, its applications field and working principle.

The ISL79987-WAND Evaluation Board is a small form factor Low Power Wireless Display controller and reference design aimed at applications like USB-C to HDMI cable replacement, wireless UHD video streaming, and other creative locally networked experiences. The kit contains components to help build a complete user-friendly Wi-Fi networking and FFH-High Definition Multimedia Interface (HDMI) transmission system.

The ISL79987-WAND board includes the host controller, the LPWD PHY core (PHY), the LPWD transceiver, I2C pin headers, and an on-board antenna. The main component of the evaluation board is the ISL79987 host controller, which is an exclusively designed low power wireless display (LPWD) transceiver chipset. The controller also includes an extra GPIO pin and I2C slave for prototyping user interfaces and systems control.

The ISL79987-WAND board enables an easy setup to demonstrate long-range, low-power wireless display (LPWD) applications. This board supports a range of wireless communication protocols such as Bluetooth Low Energy (BLE), Ultra Wide Band (UWB), Thread, and Wi-Fi. This makes it an excellent board to begin exploring the possibilities of such technologies. Moreover, it complies with Video Electronics Standards Association (VESA) DisplayHDR and DisplayID specifications for playing high-quality graphics, audio, and video content.

The ISL79987-WAND has integrated an FFH (fully functional HDMI) output interface to enable the transceiver to easily receive and transmit high-definition video content wirelessly. It also features multilevel transmit power support, which allows for increased transmission distance and improved signal quality. This also eliminates the need for an external antenna, making the system much more compact and portable.

The ISL79987-WAND also implements multiple secure connection protocols including Smart Authentication (SMT AUTH) and Watchdog time-out protection to protect the system from malicious attacks. In addition, the board supports other SW features such as a bridge mode for testing different network configurations, and multiple frequency band selection for avoiding interference.

The working principle of ISL79987-WAND is fairly simple and straightforward. The host controller is responsible for the overall controller logic and management of the system, which includes authentication, connection setup, and data transfer. The LPWD PHY core is used for digital/analog conversion, power amplification, as well as RF transmission and reception. When a signal is received by the transceiver, the digital/analog converter converts the signal to a digital format, which can then be decoded and viewed by the connected device.

Using the ISL79987-WAND Board and Kits, customers can easily prototype and demonstrate Low Power Wireless Display applications to verify all the related design and system configurations. This board is an ideal solution for designers who want to get an in-depth understanding of the components and processes of LPWD applications. The ISL79987-WAND has all the necessary features to provide insight into the design and system requirements, enabling engineers to develop better systems with shorter development cycles.

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