DRF4432D20I
DRF4432D20I
20dBm ISM RF Transceiver Module
V1.40
Features
FSK transceiver Module
ISM frequency bands
38.4K bps data rate
Multiple channels
20dBm Max. output power
Baud rate configurable
4 bytes NetID & 2 bytes NodeID
Interface: TTL/RS232/RS485
Standby current < 5uA
Supply voltage 3.4~5.5V
DRF4432D20I-M1
Application
DRF4432D20I-M2
Home automation
Security alarm
Telemetry
Contactless access
Automatic meter reading
Wireless data logger
Remote motor control
Wireless sensor network
DRF4432D20I-L1/L2
DESCRIPTION
DRF4432D20I is a low-cost sub-1 GHz transceiver module designed for operations in the
unlicensed ISM (Industrial Scientific Medical) and LPRD bands. FSK (Frequency Shift Keying)
modulation/demodulation, multi-channel operation, high bandwidth efficiency and anti-blocking
performance make DRF4432D20I modules easy to realize the robust and reliable wireless link.
The module can be configured to work in 40 channels with 1MHz channel space, which reduces
the interface from adjacent channels. It contains NetID and NodeID. Only modules with the same
NetID can communicate. The NodeID of modules can be different and it doesn’t affect the normal
use. The ID is reserved for the future network module.
DRF4432D20I integrates 256 bytes buffer. When the buffer is empty, users can transfer 200 bytes
data per time and even limitless data transfer can be achieved as long as RF data rate (RF module
to RF module) is configured to be faster than UART data rate (MCU to RF module). The module
Revision 1.40
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March. 2016
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