DATASHEET RMLORAB RMLORAB is a a Long Range (LoRa) transceiver module for the sub-1GHz ISM bands such as 868MHz (Europe) and 915MHz (North America), optimized for ultra-low-power applications. This module combines the ATSAMR35J18 Sip (System-in-Package), 32.768KHz crystal, 32MHz TCXO, RF switch, lumped element harmonics rejection filter, impedance matching circuits and required RF shielding in a compact 18.8 mm x 13.5 mm M5 form factor design.
1. 2. 3. 4. 5. 6. 7. 8. 9. Block Diagram……………………………………………………………………………………………………….3 Specifications………………………………………………………………………………………………………..3 PIN Definitions……………………………………………………………………………………………………...6 Physical Characteristics。……………………………………………………………………………..………8 Certification Info………………………………………………………………………………......…………….10 IS Parameters……………………………………………………………………………………………………….10 Order Information………………………………………………………………………………………………..11 Application note…………………………………………………………………………………………………..
1. Block Diagram: RMLORAB combines the ATSAMR35J18 Sip (System-in-Package), 32.768KHz crystal, 32MHz TCXO, RF switch, lumped element harmonics rejection filter, impedance matching circuits in a compact 18.8mm x 13.5mm form factor. It supports Euro band 868MHz, North America Band 902~928MHz, India Band 865~867MHz, Russia band 869MHz. User only need to design an antenna to achieve a long-distance connection. RMLORAB Block 2. Specifications 2.
2.2 Absolute Maximum Ratings Parameters Min Supply Voltage VCC 2.4 3.3 0 3.3 -40 23 IO & Control Pins Storage Temperature 2.3 Type Max Unit 3.6 V V 85 ºC Current Consumption Parameters Min Transmit ○ 1 Type Max 125 Unit Condition mA BW=500k SF=9, C/R=4/5, Pout=17.5dBm PA Enabled Transmit ○ 2 40 mA BW=500k SF=9, C/R=4/5, Pout=12.5dBm F=915MHz RFO Transmit ○ 3 115 mA BW=500k SF=9, C/R=4/5, Pout=17.5dBm F=868MHz PA_Boost Transmit ○ 4 38.
Sleep 2.4 10 uA Average sleep current Radio Specifications Parameters Min Frequency Band 1 Type Max 868.3 Frequency Band 2 902 Frequency Band 3 865.6 Frequency Band 4 915 Unit Remark MHz Euro 928 MHz North America 866.4 MHz India MHz Russia 869 RF Power range 2 18 dBm PA Enable @915MHz RF Power range -2.5 13.
3. Pin Definitions RMLORAB M5 Form factor Pinout Diagram Pin Pin Name Description Remark 1/2/3/5/7/10/11/12/17/18/ 19/20/21/27/28/30/31/32/ Not Connected NC 33/34/36/37/40 4/6/39/42 GPIO 41 GPIO Status indicator 9/22/23/35/44/46/48 GND Ground 8 Reset Reset 13 UART_RXD Input from Host 14 UART_TXD Output to host 15 UART_RTS Reserved 16 UART_CTS Reserved 24/25 VCC 2.4V~3.
43 Wakeup Wakeup Pin, a pull-down edge to wakeup it.
34 SWDIO Debug & Programming I 22/39/40 VCC Digital voltage supply I RMLORAB M3 Form factor Pinout Assignment 4. Physical Characteristics Parameters Range Unit Condition Size○ 1 18.8×13.5×3 mm M5 form factor Size○ 2 46x26x9 mm M3 form factor Operation Temmperature Range Operation Relative Humidity Range -40 to +85 ℃ 5~95% RMLORAB-M5 drawing Copyright © 2021 Honeywell Analytics, All rights reserved. Honeywell Confidential and Proprietary Revision –3.
RMLORAB-M5 footprint RMLORAB-M3 drawing Copyright © 2021 Honeywell Analytics, All rights reserved. Honeywell Confidential and Proprietary Revision –3.
RMLORAB-M3 footprint 5. Certification information Region Certification Status FCC/IC/RED On going SRRC TBD ROHS TBD Certificate Remark 6. IS Parameters Parameter item Value/Status Voltage Enhancement circuits or Boost circuit Not contain Total Inductance with tolerance(M5 form factor) <2.5uH Copyright © 2021 Honeywell Analytics, All rights reserved. Honeywell Confidential and Proprietary Revision –3.
Total Inductance with tolerance(M3 form factor) <2.5uH Total Capacitance with tolerance(M5 form factor) <5uF Total Capacitance with tolerance(M3 form factor) <12uF Resistor minimum package and its value, Resistor minimum paclage is 0402, its value is 1.02Kohm; Minimum Resistance is 1.02Kohm, Its package is 0402; Minimum Resistance and its package Surface less than 20mm^2 chipset Thermal Resistance All less than 215 K/W or 215 ℃/W Other parts T4 requrements Meet T4 7.
9. Warning 1. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 2. Caution: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 3.
This radio transmitter IC: 20969-RMLORAB has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. Gain of antenna: -0.32dBi max for FPC antenna, 3.0dBi max for dipole antenna Type of antenna: 50ohm, FPC or dipole antenna.
10. The requirement for KDB 996369 D03 1 List of applicable FCC rules FCC Part 15. 247. 2 Summarize the specific operational use conditions None. 3 Limited module procedures The module is a single module, so this requirement is not applicable to the product. 4 Trace antenna designs NA. 5 RF exposure considerations After evaluation, the SAR requirement is deemed to be satisfied without test. Please check the report for detail information. 6 Antennas Antenna 1: -0.32dBi, FPC antenna Antenna 2: 3.
