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Transceiver enables 3-year battery life for wireless HIDs

Posted: 16 May 2014  Print Version  Bookmark and Share

Keywords:Cypress Semiconductor  transceiver  HID  WirelessUSB  MCU 

Cypress Semiconductor Corp. has released its fourth-generation 2.4GHz WirelessUSB radio-on-a-chip. The WirelessUSB NX transceiver, according to the company, offers robust performance along with ultra-low power consumption, aided by a 2Mb/s data rate to limit time spent transmitting and receiving.

The solution enables three years of battery life for wireless mice, keyboards, trackpads, remote controls and other Human Interface Devices (HIDs). Cypress is the only supplier to offer a complete HID solution, supporting advanced features and streamlined designs with WirelessUSB NX, low-power MCUs and best-in-class capacitive touch sensing technology, boasts the company.

WirelessUSB NX transceiver

End users demand long battery life for wireless HIDs, making a low power consumption radio a must. WirelessUSB NX operates at 900nA in sleep mode where HIDs spend most of their time, and it offers low active current of 12mA in transmit mode and 15mA in receive mode. As with other Cypress WirelessUSB families, the NX radio offers superior performance in the presence of common 2.4GHz interference from sources such as WiFi, Bluetooth, cordless phones and microwaves. WirelessUSB NX is complemented by Cypress's highly integrated enCoRe VI MCU, PSoC 4 SoC devices and complete trackpad modules for sleek, robust touch interfaces, offering manufacturers a single source of supply and support.

WirelessUSB NX offers compatibility with common RF devices that are currently designed into wireless HIDs. Compatibility with these solutions enables customers to reuse existing firmware to reduce development time.

The Received Signal Strength Indicator feature on WirelessUSB NX supports a 5bit reading for signal strength and a 4bit reading for noise strength. This provides more accuracy and finer control for wireless systems.

The WirelessUSB NX transceiver is offered in an RF-tested 24-QFN package (CYRF9935) and is available in production volumes.





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