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DRF4431F20 Datasheet Preview

DRF4431F20 Datasheet

20dBm ISM RF Transceiver Module

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DRF4432F20
20dBm ISM RF Transceiver Module
DRF4431F20
V1.10
Features:
Frequency Range: 433/868MHz
Modulation: FSK/GFSK/OOK
SPI Data Interface
Sensitivity: -121dBm
Output Power: +20dBm
Data Rate: -0.123~256 kbps
Digital RSSI
Wake-up Timer
64 bytes TX/RX FIFOs
Integrated Voltage Regulator
Frequency Hopping Capability
Temperature sensor and 8-bit ADC
Working Temperature: -20°C ~+60°C
Standby current: 1uA
Supply voltage: 1.8~3.6V
Applications
Remote Control
Remote AMR
Home Automation
Personal data logger
Wireless sensor network
Remote Keyless entry
Wireless PC peripherals
DESCRIPTION
DRF4432F20 is a type of low cost RF front-end transceiver module based on SI4432 from Silicon
labs. It keeps all the advantages of RFIC SI4432 but simplifies the circuit design. The high
sensitivity (-121dBm) and 20dBm high power output make the module suitable for most short
range applications.
DRF4432F20 module consists of RFIC Si4432, thin SMD crystal and antenna matching circuit.
The antenna port is well matched to standard 50 Ohm impedance. Users don’t need to spend time
in RF circuit design and choose suitable antennas for different applications. DORJI also provides
SMA connector and high gain antenna for longer communication distance. DRF4432D20 operates
at 1.8~3.6V with extra low standby current which makes it suitable for battery powered-up
applications. DORJI also provides high power module DRF4431F27 with 500mW output power,
which provides users high flexible in designing products for different distances.
Revision 1.10
Page 1 of 6
Sep. 2011




DORJI

DRF4431F20 Datasheet Preview

DRF4431F20 Datasheet

20dBm ISM RF Transceiver Module

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PIN FUNCTIONS
DRF4431F20
Figure 1: DRF4432F20 Pin Layout
PIN Name
1 GND
2 GPIO0
3 GPIO1
4 GPIO2
5 VCC
6 SDO
7 SDI
8 SCLK
9 nSEL
10 nIRQ
11 SDN
12 GND
13 Ant
14 GND
Function
Description
Ground
Ground (0V)
Input
Tx_EN pin; High in transmit mode and Low in receive mode
Input
Rx_EN pin; High in receive mode and Low in transmit mode
Input/Output General purpose Input/Output pin
Power
Normal 3.3V
Output
SPI data output pin
Input
SPI data input pin
Input
SPI data clock pin
Input
SPI select pin
Onput
Interrupt status output pin
Input
Shutdown Input pin
Ground
Ground (0V)
Output
50 Ohm Impedance
Ground
Ground (0V)
Table 1: DRF4432F20 Pin Functions
Revision 1.10
Page 2 of 6
Sep. 2011


Part Number DRF4431F20
Description 20dBm ISM RF Transceiver Module
Maker DORJI
Total Page 6 Pages
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