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Wireless HID

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Block Diagram - Wireless HID
Cypress provides a portfolio of low cost, low power & high performance solutions for wireless HID devices. The following block diagrams illustrate typical wireless HID devices based on WirelessUSB-NL, our 3rd generation 2.4 GHz radio. Please click on the MCU block to view or sample recommended MCUs.


Figure 1: Keyboard


 

Figure 2: Presenter


 

Figure 3: Mouse

 

Figure 4: Dongle


 



Cypress also supports WUSB-LP radio & PRoC-LP SoC based wireless HID solutions. These solutions have in-built power management unit & DSSS based exceptional interference immunity.


Design Considerations

Human interface devices (HID) are products that are used for human-PC interactions like mice, keyboards & presenters. HID devices are increasingly converting from wired to wireless. Wireless HID products offer extensive mobility & range without the hassle of connection wires (USB, PS/2, etc).  They also free up USB ports as multiple wireless devices can connect to single dongle; thus using only 1 USB port in contrast to 1 each for every wired device.

Even with all the additional benefits, wireless HID products have to be cost competitive with wired ones. This makes the cost of solution a very important factor. Also, features like multi-year battery life, low battery indication & superior inference immunity are becoming standard features on the products; and these must be supported without increasing solution cost.

To serve the current & future needs of the market, Cypress has a strong portfolio of HID solutions. The portfolio consists of HID optimized MCU & radio products. The solutions offer a battery life of up to 3 years and reduction in BOM cost by supporting bare die on PCB (chip-on-board). The solution is complemented by the mature & field proven AgileHID® protocol that ensures best in class interference immunity.


Application Notes

AN15257 - Guidelines for Evaluating System Performance of Cypress WirelessUSB™ RF Products
Guidelines for Evaluating WirelessUSB™ RF System

AN4004 - Interference Mitigation Challenges and Solutions in the 2.4 to 2.5 GHz ISM Band
This application notes discussed avoiding interference using WirelessUSB.

AN5033 - WirelessUSB™ Dual Antenna Design Layout Guidelines
WirelessUSB(TM) Dual Antenna Design Layout Guidelines

AN6066 - Wireless Binding Methodologies
AN6066 discusses the general considerations for deciding on a binding methodology of devices in robust wireless systems, and also gives examples of common binding schemes, highlighting their advantages and disadvantages. It is intended for system architects, particularly those who are relatively new to wireless designs.

AN64285 - WirelessUSB(TM) NL Low Power Radio Recommended Usage and PCB Layout

AN72428 - Schematic Review Checklist for WirelessUSB™ NL
AN72428 discusses the hardware considerations and recommended practices for systems that use WirelessUSB™ NL, the Cypress third generation 2.4-GHz low-power RF technology. WirelessUSB NL operates in the 2.4-GHz ISM band and delivers the next level of low-power performance on a small 4-mm × 4-mm footprint.

Calculating Battery Life in WirelessUSB™ Systems - AN4002
Discusses Calculating Battery Life in WirelessUSB™ Systems.

Development Kits/Boards

CY3631 WirelessUSB(TM) Manufacturing Test Kit
The CY3631 WirelessUSB Manufacturing Test Kit (MTK) is an automated platform that enables customers to quickly test their WirelessUSB-enabled products without the need for expensive RF test equipment.

CY3668 WirelessUSB NL Development Kit
The CY3668 WirelessUSB-NL development kit provides a generic platform for developing wireless applications based on the WirelessUSB-NL radio and enCoRe II & enCoRe V MCU devices.

Product

Cypress wireless solutions share the unique qualities of ultra-reliable, low-power, and are optimized for wireless HID applications. The product portfolio features a rich assortment of 2.4 GHz radios & 8-bit companion MCUs.
 

  1. RF/Wireless for Consumer Products
    Cypress's WirelessUSB RF solutions are designed for short-range, multipoint-to-point connectivity and use 2.4 GHz ISM band. Cypress's patented WirelessUSB technology offers unparalleled feature set to enable superior RF performance, interference immunity, and maximum battery life 
     
  2. RF Companion Microcontrollers
    Cypress offers a line of low-power, 8-bit microcontrollers that are ideal for wireless applications. The devices feature the industry's smallest 8-bit RISC core with flash memory, low power and a variety of internal peripheral functions.

Reference Designs
Technical Articles
Software and Drivers

PSoC Creator
PSoC Creator is a state-of-the-art software development IDE combined with a revolutionary graphical design editor to form a uniquely powerful hardware/software co-design environment.

PSoC Designer
PSoC Designer is the revolutionary Integrated Design Environment (IDE) that you can use to customize PSoC to meet your specific application requirements. PSoC Designer software accelerates system bring-up and time-to-market.

WirelessUSB-NL Radio Driver
The WUSB-NL radio driver provides users with a consistent interface to the WUSB-NL radio. The driver is designed to interface with both C and assembly written applications.

Spec No: None; Sunset Owner: AMEE; Secondary Owner: PRKA; Sunset Date: 06/15/20