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Features

The RFM22B is a highly integrated, low cost, 433/868/915MHZ wireless ISM transceiver module. The low receive sensitivity ensures extended range and improved link performance. Built-in antenna diversity and support for frequency hopping can be used to further extend range and enhance performance.

Additional system features such as an automatic wake-up timer, low battery detector, 64 byte TX/RX FIFOs, automatic packet handling, and preamble detection reduce overall current consumption and allow the use of lower-cost system MCUs. An integrated temperature sensor, general purpose ADC, poweron-reset (POR), and GPIOs further reduce overall system cost and size.

The RFM22B digital receive architecture features a high-performance ADC and DSP based modem which performs demodulation, filtering, and packet handling for increased flexibility and performance. The direct digital transmit modulation and automatic PA power ramping ensure precise transmit modulation and reduced spectral spreading ensuring compliance with global regulations including FCC, ETSI.

An easy-to-use calculator is provided to quickly configure the radio settings, simplifying customer's system design and reducing time to market.

Support documents for the RFM22B

Below is the support information available for the RFM22B - select a link to download the relevant documentation.

MISC-0040 - Comparison Chart
Comparison chart for the Hope Micro RF Module product range
Dated : 14 July 2009 ( Uploaded )
Relevant to : Hope Microelectronics - Modules - RF

News information for the RFM22B

Below is the news information available for the RFM22B - select a link to view the relevant information.

EX-0003 - HopeRF Exhibiting At ElectronicAsia
Visit booth number 5FG34 on 13th-16th October 2011
Dated : 13 October 2011 ( Uploaded )
Relevant to : Hope Microelectronics

EX-0001 - HopeRF Exhibiting At The 2011 International CES
Visit booth number 35752 on 6th-9th January 2011
Dated : 06 January 2011 ( Uploaded )
Relevant to : Hope Microelectronics