Description

The Nordic nRF905 is a highly integrated, low power, multiband RF transceiver IC for the 433/868/915MHz ISM (Industrial, Scientific and Medical) band. With an integrated +10dBm PA and sensitivity of -100dBm, the nRF905 is an ideal solution for applications requiring longer-range. The ShockBurst™ hardware protocol accelerator offloads time critical protocol functions from the application microcontroller enabling the implementation of advanced and robust wireless connectivity with low cost 3rd-party microcontrollers.

In summary, the nRF905 integrates a complete 433/868/915MHz ISM RF transceiver, RF synthesizer, and baseband logic, including the ShockBurst™ hardware protocol accelerator supporting a high-speed SPI interface for the application controller. No external loop filter, resonators, or VCO varactor diodes are required, only a low cost crystal, matching circuitry, and antenna.

Specification

•    True single chip GFSK transceiver in a small 32pin package
•    shockBurst mode for low power operation
•    power supply – 3.3v
•    Multi channel operation -ETSI/FCC compatible
•    channel switching time <650us
•    No external SAW filter
•    Adjustable output power up to 10dbm
•    carrier detect for listen before transmit protocols
•    Data ready signal when a valid data packet is received or transmitted
•    Address match for detection of incoming packet
•    Automatic retransmission of datapacket
•    Low supply current(TX),typical 9mA @ -10dBm output power
•    Low supply current(RX),typical 12.5mA
•    Transmission Distance: 200-300 meters (depending on the specific situation of the
environment and communication baud rate settings, etc. may be)

Application

•    wireless data transmission
•    Alarm and security system
•    Home automation
•    Remote control
•    surveillance
•    Automotive