DRF4432S

Revision 1.10

Page

of 6

Oct. 2012

1

DRF4432S

20dBm ISM RF Sensor Receiver Module

V1.10

Features



GFSK receiver module



ISM frequency band



81K bps data rate



Multiple channels



-120dBm sensitivity



Baud rate configurable



256 bytes data buffer



Standby current < 3uA



Supply voltage 3.4~5.5V

Application



Humidity Measurement



Wireless data logger



Wireless sensor network



Home automation



Temperature Measurement

DESCRIPTION

DRF4432S is a low-cost sub-1 GHz transceiver module designed for operations in the unlicensed

ISM (Industrial Scientific Medical) and LPRD bands. GFSK (Frequency Shift Keying)

modulation/demodulation, multi-channel operation, high bandwidth efficiency and anti-blocking

performance make DRF4432S modules easy to realize the robust and reliable wireless link.

The receiver module DRF4432S is based on si4432 RFIC from Silicon labs and uses the same

hardware platform as data transmission module DRF4432D20. It can only be used as receiver in

wireless sensor application so it is incompatible with DRF4432D20. DRF4432S is used together

with DRF5150S to build wireless sensor applications. It collects sensor data from sensor

transmitter modules DRF5150S and transfers data at fixed format which is determined by the

sensor working mode configured through DRF Tool 5150.