Cypress’s CYRF6936 2.4-GHz wireless solution

The Cypress Semiconductor CYRF6936 2.4GHz low-power radio provides a complete WirelessUSB™ SPI to antenna wireless modems.

The CYRF6936 is a second-generation member of Cypress’s WirelessUSB radio System-on-Chip (SoC) family supporting 98 discrete 1MHz channels. It is interoperable with the first-generation CYWUSB69xx devices, and adds features including increased operating-voltage range, reduced supply current, higher data-rate options, and reduced crystal start-up, synthesizer-settling and link-turnaround times.

The SoC contains a 2.4GHz, 1Mbps GFSK radio transceiver, packet-data buffering, packet framer, Direct Sequence Spread Spectrum (DSSS) baseband controller, Received Signal Strength Indication (RSSI), and SPI interface for data transfer and device configuration.

The baseband performs DSSS spreading/despreading, Start Of Packet (SOP) and End Of Packet (EOP) detection, as well as CRC16 generation and checking. The baseband may also be configured to automatically transmit acknowledge handshake packets whenever a valid packet is received. When in receive mode, with packet framing enabled, the device is always ready to receive data transmitted at any of the supported bit rates, enabling the implementation of mixed-rate systems in which different devices use different data rates.

The CYRF6936 has a Power Management Unit (PMU) allowing direct connection of the device to any battery voltage in the 1.8V to 3.6V range. The PMU conditions the battery voltage to provide the supply voltages required and can also supply external devices.

 

FEATURES 21mA operating current (transmit @ –5dBm) +4dBm transmit power -97dBm receiver sensitivity <1µA sleep current 250kbit/s DSSS data rate

APPLICATIONS Remote controls Toys Home automation Automatic meter readers Personal health and entertainment

 

 

Cypress Semiconductor / CYRF6936