CYRF7936 Datasheet, PDF (1/21 Pages) Cypress Semiconductor – 2.4 GHz CyFi™ Transceiver

CYRF7936
2.4 GHz CyFi™ Transceiver
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 – 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 <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
■ Fast Startup and Fast Channel Changes
■ Separate 16-byte Transmit and Receive FIFOs
■ 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 1.8V to 3.6V
■ Operating temperature from 0 to 70°C
■ Space saving 40-pin QFN 6x6 mm package
Applications
■ Wireless Sensor Networks
■ Wireless Actuator Control
■ Home Automation
■ White Goods
■ Commercial Building Automation
■ Automatic Meter Readers
■ Precision Agriculture
■ Remote Controls
■ Consumer Electronics
■ Personal Health and Fitness
■ Toys
Applications Support
See www.cypress.com for development tools, reference
designs, and application notes.
Logic Block Diagram
V_REG VDD
V_CC PACTL
L/D
V_BAT
V_IO
IRQ
SS
SCK
MISO
MOSI
PMU
SPI
CyFi Radio Modem
Data
Interface
and
Sequencer
DSSS
Baseband
& Framer
RSSI
GFSK
Modulator
GFSK
Demodulator
RST
Xtal Osc
Synthesizer
XTAL XOUT
GND
RF_P
RF_N
RF_BIAS
Cypress Semiconductor Corporation • 198 Champion Court
Document #: 001-48013 Rev. **
• San Jose, CA 95134-1709 • 408-943-2600
Revised September 10, 2008
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