0086-4001-189-180
中文
English
Design documents and resources
Typical application plan
Associated products
RFM75W

2.4GHz Module

RFM75.png

1. Descriptions of 2.4Ghz Wireless RF Transceiver Module RFM75W:


RFM75W is a GFSK wireless rf transceiver module operating in the world wide ISM frequency band at 2400-2483.5 MHz. Burst mode transmission and up to 2Mbps air data rate make them suitable for applications requiring ultra low power consumption.

 

The embedded packet processing engines enable their full operation with a very simple MCU as a radio system. Auto re-transmission and auto acknowledge give reliable link without any MCU interference.


RFM75W operates in TDD mode, either as a transmitter or as a receiver.


The RF channel frequency determines the center of the channel used by RFM75W. The frequency is set by the RF_CH register in register bank 0 according to the following formula: F0= 2400 + RF_CH (MHz). The resolution of the RF channel frequency is 1MHz.


A transmitter and a receiver must be programmed with the same RF channel frequency to be able to communicate with each other. The output power of RFM75W is set by the RF_PWR bits in the RF_SETUP register.


Demodulation is done with embedded data slicer and bit recovery logic. The air data rate can be programmed to 250Kbps, 1Mbps or 2Mbps by RF_DR_HIGH and RF_DR_LOW register. A transmitter and a receiver must be programmed with the same setting.


2. Features of 2.4Ghz Wireless RF Transceiver Module RFM75W:


● 2400-2483.5 MHz ISM band operation

● Support 250Kbps, 1Mbps and 2 Mbps airdata rate

● Programmable output power

● Tolerate +/- 60ppm 16 MHz crystal

● Variable payload length from 1 to 32bytes

● Automatic packet processing

● 6 data pipes for 1:6 star networks

● 1.9V to 3.6V power supply

● 4-pin SPI interface with maximum 8 MHz clock rate

● 20-pin 4x4mm QFN package


3. Applications of 2.4Ghz Wireless RF Transceiver Module RFM75W:


● Wireless PC peripherals

● Wireless gamepads

● Wireless audio

● Remote controls

● Home automation

● Toys


Design documents and resources
DEMO & Tools:
HopeRF_RF-EVB_manual_V1.21
2018-11-22
HopeRF_RFDK_RFMxx_DEMO_V2.1_operation_manual
2018-11-22
HoepRF_HSP_V1.3
2018-11-22
HoepRF_HSP_V1.0
2018-11-20
CP210x_VCP_Windows
2018-11-20
AN0002-Hopeduino platform construction guideline
2018-11-20
CMOSTEK WriterConfig V1.4.0 for Writer V3.1
2018-11-30
RFM75_DemoCode_V1
2018-11-22
RFDK_PIC16_LCD V1.1hardware(131029)
2018-11-22
Design Guides:
RFM75P_demo_board_code
2018-11-22
RFM75_transmiter_code(Master)
2018-11-22
RFM75_receiver_code(Slaver)
2018-11-22
RF75PW user manual
2018-11-22
ANTENNAS_MODULE
2018-11-22
AN0002-Hopeduino platform construction guideline
2018-11-22
Certification & Test Reports:
RFM75PW ETSI test report
2018-11-22
RFM73W FCC test report
2018-11-22
RF Module Reach
2020-05-18
RF Module ROHS 2.0
2020-05-18
Associated products
ALL
Professional RF&SENSOR Designer and Manufacturer
Copyright ©2018 HOPE Microelectronics CO., Ltd. All rights reserved.