CYPRESS WirelessUSB Low Power CYRF6936 TM P R O D U C T O V E RV I E W INTELLIGENT LOW- POWER WIRELESSUSB LP F E AT U R E S The CYRF6936 WirelessUSB Low Power (LP) radio is a second-generation member of the Cypress WirelessUSB Radio System-On-Chip (SoC) family. Designed to operate in the 2.4 GHz ISM band, it maintains Wireless USB’s award-winning interference immunity and superior co-location abilities. Key enhancements comprise low power consumption, the ability to drive supply rails of external devices, and support for up to 255-byte payloads. LOW POWER TM TM • 21 mA TX (at -5 dBm) and RX current • 0.87 mA average current • Less than 1 µA sleep current • Quick startup and fast channel changes • Selectable RF transmit power achieves 2180 µs WirelessUSB LP (1 Mbps; 255-byte Payload) Xtal On 1 ms Syn On 100 µs Overhead 24 µs Payload 2040 µs ROBUST LINK CRC 16 µs • RF transmit power up to +4 dBm • Receive sensitivity up to -97 dBm Competition’s Solution (2 Mbps; 32-byte Payload) Xtal On 1 ms Syn On Overhead Payload CRC Syn On Overhead Payload CRC Syn On Overhead Payload 150 µsµs 16 µsµs 128 µsµs 88CRC µs Syn On Overhead Payload CRC 150 16 128 µs Syn On Overhead Payload CRC 150 µsµs 16 µsµs 128 µsµs 88 µs Syn On Overhead Payload CRC 150 16 128 µsCRC Syn On Overhead Payload 150 µs 16 µs 128 µs 88 µs Syn On Overhead Payload CRC 150 µs 16 µs 128 µs 150 16 128 8µs 150µsµs 16µsµs 128µs µs 8µs µs current as low as 15 mA • Operating range up to 10 m 302 µs, where 8 x 302 = 2416 µs • DSSS data rates up to 250 kbps • GFSK data rate of 1 Mbps • Selectable data rates and encoding modes WirelessUSB LP’s 1-Mbps mode faster than competition’s 2-Mbps mode for larger payloads Superior Interference Immunity - WirelessUSB LP achieves military-grade interference immunity through the use of Direct Sequence Spread Spectrum (DSSS) technology. In additions to DSSS, it has built-in interference detection technology that can detect and avoid noisy channels, resulting in an exceptionally robust 2.4 GHz radio link. Auto Transaction Sequencer - The device enables link layer automation, where entire transmit and receive transactions can take place without MCU firmware action. Power Management Unit (PMU) - The PMU allows WirelessUSB LP to drive the supply voltages of external devices such as MCUs and optical sensors with 2.4 to 2.7 V at a current of up to 15 mA. This eliminates the need for an external boost converter in most battery-powered applications, reducing BOM cost. AutoRate Receiver - WirelessUSB LP automatically detects incoming packet data rates TM from 1 Mbps down to 16 kbps and enables mixed- and dynamic-rate systems. www.cypress.com/go/wirelessusblp • Receive signal strength indication ADVANCED LOGIC FEATURES • Auto transaction sequencer (ATS) • Hardware packet framing • AutoRate receiver TM • Automatic ACK packets INTEGRATED POWER MANAGEMENT • Enables operating voltages from 1.8 to 3.6 V • Provides supply voltages to external devices such as MCUs and optical sensors • Battery voltage measurement P R O D U C T O V E RV I E W APPLICATIONS • Wireless keyboards and mice • Wireless gamepads • Wireless headsets • Home automation • VoIP • Consumer electronics • Remote controllers • White goods • Toys VIO VBAT L/D VREG VDD VCC PACTL 2.4 to 2.7 V Power Management IRQ SS SCK MISO MOSI DSSS Baseband and Framer Data Interface and Sequencer SPI RSSI XTAL Osc GFSK Modulator GFSK Demodulator Synthesizer RFP RFN RFBIAS ~ ~ Optical/Laser Sensor ~ ~ ~ ~ MCU PMU WirelessUSB Low Power 1.8 to 3.6 V RST XTAL XOUT GND Integrated radio, baseband, logic, and power management Integrated PMU drives MCU and optical sensor in a mouse DEVELOPMENT TOOLS Development Tool Description CY4636 Keyboard-Mouse Reference Design Kit (RDK) For building a wireless keyboard and mouse solution. Includes schematics, layout, firmware, and demo units 2.4 GHz Green Button Certified Media Center Remote Control Design that uses Cypress’s patented DSSS-based WirelessUSB technology and Gyration’s patented motion-sensing gyroscope. It is the only method of cursor control approved by Microsoft for a Green Button-certified XP MCE remote control. Also includes IR emitter and receiver for home theater device control and IR learning. CY3630 Evaluation Kit (EVK) Easy-to-use evaluation platform that demonstrates WirelessUSB LP’s low power, high data rate, and smart features such as AutoRate and ATS CY3631 Manufacturing Test Kit (MTK) An industry first, the MTK is an automated RF test platform providing a cost-effective method of early detection of assembly level failures CY4638 VoIP Demo Kit Demonstrates smart implementation of low power, low cost, and duplex wireless headset to a single wireless receiver CYPRESS SYSTEM LEVEL EXPERTISE With an extensive MCU portfolio in the enCoRe family and a comprehensive laser navigation SoC line-up in the Ovation family of products, Cypress is your complete HID solutions partner. CHIP- ON - BOARD SUPPORT Cypress now offers chip-on-board (COB) support for extremely cost-sensitive, high-volume applications such as keyboards and mice. Cypress can link customers with third party COB module partners that are ready to build to custom design specifications using the same quality components as packaged devices. GET STARTED NOW For more information on WirelessUSB LP, visit www.cypress.com/go/wirelessusblp. Cypress Semiconductor Corporation 198 Champion Court, San Jose CA 95134 phone +1 408.943.2600 toll free +1 800.858.1810 (U.S. only) © 2010 Cypress Semiconductor Corporation. All rights reserved. All other trademarks are the property of their respective owners. Doc# 001-63624 Rev** 0610/AJHA/NITA