Functional Description
The CYRF6936 WirelessUSB™ LP radio is a second generation member of the Cypress WirelessUSB Radio System-On-Chip (SoC) family. The CYRF6936 is interoperable with the first generation CYWUSB69xx devices. The CYRF6936 IC adds a range of enhanced features, including increased operating voltage range, reduced supply current in all operating modes, higher data rate options, reduced crystal start up, synthesizer settling, and link turnaround times.

FEATUREs
■ 2.4 GHz Direct Sequence Spread Spectrum (DSSS) radio transceiver
■ Operates in the unlicensed worldwide Industrial, Scientific, and Medical (ISM) band (2.400 GHz to 2.483 GHz)
■ 21 mA operating current (Transmit at –5 dBm)
■ Transmit power up to +4 dBm
■ Receive sensitivity up to –97 dBm
■ Sleep Current less than 1 μA
■ DSSS data rates up to 250 kbps, GFSK data rate of 1 Mbps
■ Low external component count
■ Auto Transaction Sequencer (ATS) - no MCU intervention
■ Framing, Length, CRC16, and Auto ACK
■ Power Management Unit (PMU) for MCU/Sensor
■ Fast Startup and Fast Channel Changes
■ Separate 16-byte Transmit and Receive FIFOs
■ AutoRate™ - dynamic data rate reception
■ Receive Signal Strength Indication (RSSI)
■ Serial Peripheral Interface (SPI) control while in sleep mode
■ 4 MHz SPI microcontroller interface
■ Battery Voltage Monitoring Circuitry
■ Supports coin-cell operated applications
■ Operating voltage from 1.8 V to 3.6 V
■ Operating temperature from 0 to 70°C
■ Space saving 40-pin QFN 6x6 mm package

APPLICATIONs
■ Wireless Keyboards and Mice
■ Wireless Gamepads
■ Remote Controls
■ Toys
■ VOIP and Wireless Headsets
■ White Goods
■ Consumer Electronics
■ Home Automation
■ Automatic Meter Readers
■ Personal Health and Entertainment