RFM218BW HOPE | Alldatasheet

Document overview

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Technical content

Features

 Comply with FCC and ETSI standard  Strong anti-interference ability, suitable for complex interference environment scenarios  Frequency range: 315MHz, 433.92 MHz, 868.35 MHz,915 MHz  Modulation and demodulation mode: (G)FSK  Data rate: 2.4 kbps  Sensitivity: -117 dBm 2.4kbps, FRF =433.92 MHz  Voltage Range: 1.8~3.6 V  Transmit current: 8.5 mA @ 433.92 MHz  Supporting ultra low power receiving mode  Sleep Current: less than 2uA

Applications

 Automatic meter reading  Home security and building automation  ISM band data communication  Industrial monitoring and control  Remote control and security system  Wireless sensor nodes  Labeling reader

Description

The RFM218BW is an ultra -low power, high performance receiver module which suitable for ISM band wireless applications (G) FSK RF receiver. The module is highly integrated, which simplifies the peripheral materials needed in the system design. It supports the direct mode which means input antenna then output data. It also supports Duty -Cycle operation mode, channel interception, high -precision RSSI, power-on reset, noise output and other functions, which makes the application design more flexible and achieves product differentiation design. RFM218BW

Ordering Information

Module No. Working Fre. FrequencyRFM218B-315S2 315MHz RFM218B-433S2 433.92MHz RFM218B-868S2 868.35MHz RFM218B-915S2 915MHz

sales@hoperf.com 2 www.hoperf.com Pin Information Figure1. RFM218BW Pin Assignment (Top View) Table1. RFM218BW Pin Functions Pin No. Name Description

1 NC Not connected

2 SCK SPI clock

3 CSB SPI Selection to access registers

4 NC Not connected

5 GND Ground (electricity)

6 VDD Positive power supply

7 ANT Antenna Input

8 GND Ground (electricity)

9 NC Not connected

10 NC Not connected

11 GPIO2 Fixed as RX-ACTIVE output

12 GPIO3 Configurable as: DOUT,RX-ACTIVE,DCLK

13 GPIO1 Fixed as DOUT Output

14 SDIO SPI Data input & output

sales@hoperf.com 3 www.hoperf.com Electrical parameters Testing conditions: Power supply 3.3V, temperature 25℃. Parameter Symbol Conditions Minimum Typical Value Maximum Unit Working Frequency Fc Model: RFM218B-315S2 315 MHz Model: RFM218B-433S2 433.92 MHz Model: RFM218B-868S2 868.35 MHz Model: RFM218B-915S2 915 MHz Modulation MOD (G)FSK Rx Sensitivity S 315MHz 2.4 Kbps -117 dBm 433.92MHz 2.4 Kbps -117 dBm 868.35MHz 2.4 Kbps -115 dBm 915MHz 2.4 Kbps -115 dBm Rx Bandwidth BW 50 500 KHz Data Rate DR 0.5 2.4 300 Kbps Supply Voltage VDD 1.8 3.3 3.6 V Rx Working Current IOP 315MHz 8.5 9 mA 433.92MHz 8.5 9 mA 868.35MHz 8.7 9 mA 915MHz 8.7 9 mA Sleep Current ISleep 2 uA Image Rejection IMR 35 dB Working Temperature TOP -40 +85 ℃

sales@hoperf.com 4 www.hoperf.com Dimensions Figure 2.Dimensions Unit: mm HOPE MICROELECTRONICS CO., LTD Add: 2/F, Building3, pingshan Private Enterprise science and Technology Park, xili Town, Nanshan District, Shenzhen, China Tel: 86 -755-82973805 Fax: 86-755-82973550 Email: sales@hoperf.com Website: http://www.hoperf.com This document may contain preliminary information and is subject to change by Hope Microelectronics without notice. Hope Microelectronics assumes no responsibility or liability for any use of the information contained herein. Nothing in this document shall operate as an express or implied license or indemnity under the intellectual property rights of Hope Microelectronics or third parties. The products described in this document are not intended for use in implantation or other direct life support applications where malfunction may result in the direct physical harm or injury to persons. NO WARRANTIES OF ANY KIND, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIESOF MECHANTABILITYORFITNESSFORAARTICULARPURPOSE, ARE OFFERED IN THIS DOCUMENT. © 2006,HOPEMICROELECTRONICSCO.,LTD.Allrightsreserved.