MRF24J40MA_V01 MICROCHIP | Alldatasheet
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2019-2022 Microchip Technology Inc. and its subsidiaries DS70000329D MRF24J40MA Data Sheet 2.4 GHz IEEE® Std. 802.15.4™ RF Transceiver Module
DS70000329D-page 2 2019-2022 Microchip Technology Inc. and its subsidiaries This publication and the information herein may be used only with Microchip products, including to design, test, and integrate Microchip products with your application. Use of this informa- tion in any other manner violates these terms. Information regarding device applications is provided only for your conve- nience and may be superseded by updates. It is your responsi- bility to ensure t hat your applicatio n meets with your specifications. Contact your lo cal Microchip sales office for additional support or, obtai n additional support at https:// www.microchip.com/en-us/support/design-help/client-support- services. THIS INFORMATION IS PROVIDED BY MICROCHIP "AS IS". MICROCHIP MAKES NO REPRESENTATIONS OR WAR- RANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF NON- INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE, OR WARRANTIES RELATED TO ITS CONDITION, QUALITY, OR PERFORMANCE. IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDI- RECT, SPECIAL, PUNITIVE, INCIDENTAL, OR CONSE- QUENTIAL LOSS, DAMAGE, COST, OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE INFORMATION OR ITS USE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY RELATED TO THE INFORMATION OR ITS USE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY, THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THE INFORMATION. Use of Microchip devices in life support and/or safety applica- tions is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual pr operty rights unless otherwise stated. Note the following details of the code protection feature on Microchip products:
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- Neither Microchip nor any other semiconduc tor manufacturer can guarantee the security of its code. Code protection does not mean that we are guaranteeing the product is "unbreakable" Code protection is constantly evolving. Microchip is committed to continuously improving the code protection features of our products. Trademarks The Microchip name and logo, the Microchip logo, Adaptec, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, CryptoMemory, CryptoRF, dsPIC, flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi, Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, PolarFire, Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST, SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AgileSwitch, APT, ClockWorks, The Embedded Control Solutions Company, EtherSynch, Flashtec, Hyper Speed Control, HyperLight Load, Libero, motorBench, mTouch, Powermite 3, Precision Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, Quiet- Wire, SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub, TimePictra, TimeProvider, TrueTime, and ZL are registered trademarks of Microchip Technology Incorporated in the U.S.A. Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, Augmented Switching, BlueSky, BodyCom, Clockstudio, CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, Espresso T1S, EtherGREEN, GridTime, IdealBridge, In- Circuit Serial Programming, ICSP, INICnet, Intelligent Paralleling, IntelliMOS, Inter-Chip Connectivity, JitterBlocker, Knob-on-Display, KoD, maxCrypto, maxView, memBrain, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple Blocker, RTAX, RTG4, SAM-ICE, Serial Quad I/O, simpleMAP , SimpliPHY, SmartBuffer, SmartHLS, SMART-I.S., storClad, SQI, SuperSwitcher, SuperSwitcher II, Switchtec, SynchroPHY, Total Endurance, Trusted Time, TSHARC, USBCheck, VariSense, VectorBlox, VeriPHY, ViewSpan, WiperLock, XpressConnect, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered trademarks of Microchip Technology Inc. in other countries. GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies. © 2019-2022, Microchip Technology Incorporated and its subsidiar- ies. All Rights Reserved. ISBN: 978-1-6683-0505-8For information regarding Microchip’s Quality Management Systems, please visit www.microchip.com/quality.
2019-2022 Microchip Technology Inc. DS70000329D-page 3 MRF24J40MA Features:
- IEEE Std. 802.15.4™ Co mpliant RF Transceiver
- Supports ZigBee ®, MiWi™, MiWi™ P2P and Proprietary Wireless Networking Protocols
- Small Size: 0.7” x 1.1” (17.8 mm x 27.9 mm), Surface Mountable
- Integrated Crystal, Internal Voltage Regulator, Matching Circuitry and PCB Antenna
- Easy Integration into Final Product – Minimize Product Development, Quicker Time to Market
- Radio Regulation Certification for United States (FCC), Canada (IC) and Europe (ETSI)
- Compatible with Microchip Microcontroller Families (PIC16F, PIC18F, PIC24F/H, dsPIC33 and PIC32)
- Up to 400 ft. Range Operational:
- Operating Voltage: 3.0-3.6V (3.3V typical)
- Temperature Range: -40C to +85C Industrial
- Simple, Four-Wire SPI Interface
- Low-Current Consumption: - RX mode: 19 mA (typical) - TX mode: 23 mA (typical) -S l e e p : 2 A (typical) RF/Analog Features:
- ISM Band 2.405-2.48 GHz Operation
- Data Rate: 250 kbps
- -94 dBm Typical Sensitivity with +5 dBm Maximum Input Level
- +0 dBm Typical Output Power with 36 dB TX Power Control Range
- Integrated Low Phase Noise VCO, Frequency Synthesizer and PLL Loop Filter
- Digital VCO and Filter Calibration
- Integrated RSSI ADC and I/Q DACs
- Integrated LDO
- High Receiver and RSSI Dynamic Range MAC/Baseband Features:
- Hardware CSMA-CA Mechanism, Automatic ACK Response and FCS Check
- Independent Beacon, Transmit and GTS FIFO
- Supports all CCA modes and RSS/LQI
- Automatic Packet Retransmit Capable
- Hardware Security Engine (AES-128) with CTR, CCM and CBC-MAC modes
- Supports Encryption and Decryption for MAC Sublayer and Upper Layer FIGURE 1: PIN DIAGRAM VIN GND RESET WAKE SDO SDI SCK CS NC GND INT
11 GND
2.4 GHz IEEE® Std. 802.15.4™ RF Transceiver Module
DS70000329D-page 4 2019-2022 Microchip Technology Inc. Table of Contents TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publicatio ns to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors@microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Website at: http://www.microchip.com You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page. The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000). Errata An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision of silicon and revision of document to which it applies. To determine if an errata sheet exists for a particular device, please check with one of the following:
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2019-2022 Microchip Technology Inc. DS70000329D-page 5 MRF24J40MA
1.0 DEVICE OVERVIEW
The MRF24J40MA is a 2.4 GHz IEEE Std. 802.15.4™ compliant, surface mount module with integrated crystal, internal voltage regulator, matching circuitry and PCB antenna. The MRF24J40MA module oper- ates in the non-licensed 2.4 GHz frequency band and is FCC, IC and ETSI compliant. The integrated module design frees the integrator from extensive RF and antenna design, and regulatory compliance testing, allowing quicker time to market. The MRF24J40MA module is compatible with Microchip’s ZigBee ®, MiWi™ and MiWi P2P software stacks. Each soft ware stack is available as a free download, including source code, from the Microchip web site http://www.microchip.com/wireless. The MRF24J40MA module has received regulatory approvals for modular devic es in the United States (FCC), Canada (IC) and Europe (ETSI). Modular approval removes the need for expensive RF and antenna design and allows the end user to place the MRF24J40MA module inside a finished product and not require regulatory testing for an intentional radiator (RF transmitter). See Section 3.0 “Regulatory Approval” for specific requirements to be followed by the integrator.
1.1 Interface Description
Figure 1-1 shows a simplified block diagram of the MRF24J40MA module. The module is based on the Microchip Technology MRF24J40 IEEE 802.15.4™ 2.4 GHz RF Transceiver IC. The module interfaces to many popular Microchip PIC ® microcontrollers via a 4-wire serial SPI interface, interrupt, wake, Reset, power and ground, as shown in Figure 1-2. Table 1-1 provides the pin descriptions. Data communications with the MRF24J40MA module are documented in the “MRF24J40 IEEE 802.15.4™ 2.4 GHz RF Transceiver Data Sheet” (DS39776). Refer to the MRF24J40 Data Sheet for specific serial interface protocol and register definitions. FIGURE 1-1: MRF24J40MA BLOCK DIAGRAM PCB Antenna Matching Circuitry Physical MAC Interface Power Management SPI
20 MHz
MRF24J40MA IEEE Std. 802.15.4™ Module MRF24J40
DS70000329D-page 6 2019-2022 Microchip Technology Inc. TABLE 1-1: PIN DESCRIPTION FIGURE 1-2: MICROCONTROLLER TO MRF24J40MA INTERFACE Pin Symbol Type Description
1 GND Power Ground
2 RESET DI Global hardware Reset pin
3 WAKE DI External wake-up trigger
4 INT DO Interrupt pin to microcontroller
5 SDI DI Serial interface data input
6 SCK DI Serial interface clock
7 SDO DO Serial interface data output from MRF24J40
DI Serial interface enable
9 NC — No connection (allow pin to float; do not connect signal)
10 V IN Power Power supply
11 GND Ground Ground
12 GND Ground Ground
Legend: Pin type abbreviation: D = Digital, I = Input, O = Output SDO I/O SDI SCK INTx MRF24J40MA CS SDI SDO SCK INT I/O WAKE VIN GND PIC® MCU I/O RESET
2019-2022 Microchip Technology Inc. DS70000329D-page 7 MRF24J40MA
1.2 Mounting Details
The MRF24J40MA is a surface mountable module. Module dimensions are shown in Figure 1-3. The module Printed Circuit Board (PCB) is 0.032" thick with castellated mounting points on the edge. Figure 1-4 is a recommended host PCB footprint for the MRF24J40MA. The MRF24J40MA has an integrated PCB antenna. For the best performance, follow the mounting details shown in Figure 1-5. It is recommended that the module be mounted on the edge of the host PCB, and an area around the antenna, approximately 1.2", be kept clear of metal objects. A host PCB ground plane around the MRF24J40MA acts as a counterpoise to the PCB antenna. It is recommended to extend the ground plane at least 0.4" around the module. FIGURE 1-3: MODULE DETAILS FIGURE 1-4: RECOMMENDED PCB FOOTPRINT
DS70000329D-page 8 2019-2022 Microchip Technology Inc. FIGURE 1-5: MOUNTING DETAILS 0.470” Edge of PCB Keep area around antenna (approximately 1.2 inches) clear of metallic structures for best performance PCB Ground Plane (Counterpoise) Extend as far as possible to the sides and below the module (at least 0.4 inches on each side) for best performance 0.4” 0.4” 0.4” 1.2” 1.2”
2019-2022 Microchip Technology Inc. DS70000329D-page 9 MRF24J40MA
2.0 CIRCUIT DESCRIPTION
The MRF24J40MA is a complete 2.4 GHz IEEE Std. 802.15.4™ compliant surface mount module with integrated crystal, internal voltage regulator, matching circuitry and PCB antenna. The MRF24J40MA module interfaces to many popular Microchip PIC micro- controllers via a 4-wire serial SPI interface, interrupt, wake, Reset, power and ground. Data communications with the MRF24J40MA module are documented in the “MRF24J40 IEEE 802.15.4™ 2.4 GHz RF Transceiver Data Sheet” (DS39776). Refer to the MRF24J40 Data Sheet for specific serial interface protocol and register definitions.
2.1 Schematic
A schematic diagram of the module is shown in Figure 2-1 and the Bill of Materials (BOM) is shown in Table 2-1. The MRF24J40MA module is based on the Microchip Technology MRF24J40 IEEE 802.15.4™ 2.4 GHz RF Transceiver IC. The serial I/O (SCK, SDI, SDO and CS), RESET, WAKE and INT pins are brought out to the module pins. The SDO signal is tri-state buffered by IC2 to solve a silicon errata, where the SDO signal does not release to a high-impedance state, after the CS pin returns to its inactive state. Crystal, X1, is a
20 MHz crystal with a frequency tolerance of
±10 ppm @ 25°C to meet the IEEE Std. 802.15.4 symbol rate tolerance of ±40 ppm. A balun is formed by components: L1, L3, C2 and C14. L2 is an RF choke and pull-up for the RFP and RFN pins on the MRF24J40. C15 is a DC block capacitor. A low-pass filter is formed by components: L4, C16 and C17. The remaining capacitors provide RF and digital bypass.
DS70000329D-page 10 2019-2022 Microchip Technology Inc. FIGURE 2-1: MRF24J40MA SCHEMATIC VDD1 RFP2 RFN3 VDD4 VDD5 GND6 GPIO07 GPIO18 GPIO59 GPIO410 NC 30 NC 29 LPOSC1 28 LPOSC2 27 NC 26 GND 25 GND 24 NC 23 GND 22 VDD 21 IC1 GPIO211 GPIO312 RESET13 GND14 WAKE15 INT 16 SDO 17 SDI 18 SCK 19 CS 20 LCAP V DD NC VDD GND VDD OSC1 OCS2 V DD VDD MRF24J40/ML NC NC NC NC NC NC C10 47 pF VIN C11 0.1 F VIN 3.3 nH 8.2 nH VIN 1.0 pF 5.6 nH C14 0.5 pF C13 47 pF C12 0.1 F C15 0.5 pF C16 NP C17 1.0 pF PCB Antenna L4 6.8 nH VIN
2 RESET
4 INT
3 WAKE
5 SDI
6 SCK
A VIN GND Y VCC IC2 NC7SZ125P5X
7 SDO
0.01 F VIN NP
12 GND
1 GND
10 VIN
1 F 47 pF VIN 47 pF VIN C5 47 pF VINC18 18 pF C19 18 pF X1 20.00 MHz 100 pF 0.01 F VIN 1 F VIN Note: NP = Not Placed.
2019-2022 Microchip Technology Inc. DS70000329D-page 11 MRF24J40MA TABLE 2-1: MRJ24J40MA BILL OF MATERIALS Designator Description Manufacturer Part Number C1 Chip Capacitor 0402 X5R 1U Murata GRM155R60J105ME19D C2 Chip Capacitor 0402 COG 1.0P Murata GRM1555C1H1R0CZ01D C3 Chip Capacitor 0402 X7R 10N Murata GRM155R71E103KA01D C4 Chip Capacitor 0402 COG 47P Murata GRM1555C1H470JZ01D C5 Chip Capacitor 0402 COG 47P Murata GRM1555C1H470JZ01D C6 Chip Capacitor 0402 COG 47P Murata GRM1555C1H470JZ01D C7 Chip Capacitor 0402 X7R 10N Murata GRM155R71E103KA01D C8 Chip Capacitor 0402 X5R 1U Murata GRM155R60J105ME19D C9 Chip Capacitor 0402 COG 100P Murata GRM1555C1H101JZ01D C10 Chip Capacitor 0402 COG 47P Murata GRM1555C1H470JZ01D C11 Chip Capacitor 0402 X5R 100N Murata GRM155R61A104KA01D C12 Chip Capacitor 0402 X5R 100N Murata GRM155R61A104KA01D C13 Chip Capacitor 0402 COG 47P Murata GRM1555C1H470JZ01D C14 Chip Capacitor 0402 COG 0.5P Murata GRM1555C1HR50CZ01D C15 Chip Capacitor 0402 COG 0.5P Murata GRM1555C1HR50CZ01D C16 Not Placed C17 Chip Capacitor 0402 COG 1.0P Murata GRM1555C1H1R0CZ01D C18 Chip Capacitor 0402 COG 18P Murata GRM1555C1H180JZ01D C19 Chip Capacitor 0402 COG 18P Murata GRM1555C1H180JZ01D IC1 IEEE 802.15.4™ RF Transceiver Microchip MRF24J40-I/ML IC2 Buffer, SC70 Package Fairchild NC7SZ125P5X L1 Chip Inductor 0402 8.2N Panasonic ELJ-RF8N2JFB L2 Chip Inductor 0402 3.3N Panasonic ELJ-RF3N3DFB L3 Chip Inductor 0402 5.6N Panasonic ELJ-RF5N6DFB L4 Chip Inductor 0402 6.8N Panasonic ELJ-RF6N8JFB R1 Not Placed X1 20 MHz Crystal Abracon ABM8-156-20.0000MHZ-T
DS70000329D-page 12 2019-2022 Microchip Technology Inc.
2.2 Printed Circuit Board
The MRF24J40MA module printed circuit board is con- structed with FR4 material, four layers and 0.032 inches thick. The layers are shown in Figure 2-2 through Figure 2-6. The stack up of the PCB is shown in Figure 2-7. FIGURE 2-2: TOP SILK SCREEN FIGURE 2-3: TOP COPPER FIGURE 2-4: LAYER 2 – GROUND PLANE FIGURE 2-5: LAYER 3 – POWER PLANE FIGURE 2-6: BOTTOM COPPER Note: Top view negative Gerber. Note: Top view negative Gerber. Note: Top view.
2019-2022 Microchip Technology Inc. DS70000329D-page 13 MRF24J40MA FIGURE 2-7: PCB LAYER STACK UP Top Copper Ground Plane Power Plane Bottom Copper 1/2 oz. Copper 1/2 oz. Copper 1/2 oz. Copper 1/2 oz. Copper 8 mil FR4 12 mil FR4 8 mil FR4 0.032” +/- 0.005”
DS70000329D-page 14 2019-2022 Microchip Technology Inc.
2.3 PCB Antenna
The PCB antenna is fabricated on the top copper trace. Figure 2-8 shows the trace dimensions. The layers below the antenna have no copper traces. The ground and power planes under the components serve as a counterpoise to the PCB antenna. Additional ground plane on the host PCB will substantially enhance the performance of the module. For best performance, place the module on the host PCB following the recommendations in Section 1.2 “Mounting Details”. The Printed Circuit Board (PCB) antenna was designed and simulated using Ansoft Designer ® and HFSS™ 3D full-wave solver software by Ansoft Corporation (www.ansoft.com). The design goal was to create a compact, low-cost antenna with the best radiation pattern. Figure 2-9 shows the simulation drawing and Figure 2-10 and Figure 2-11 show the 2D and 3D radiation patterns, respec tively. As shown by the radiation patterns, the performance of the antenna is dependant upon the orientation of the module. Figure 2-12 shows the impedance simulation and Figure 2-13 shows the actual impedance measurement. The discrete matching circuitry matches the impedance of the antenna with the MRF24J40 transceiver IC. FIGURE 2-8: PCB ANTENNA DIMENSIONS FIGURE 2-9: PCB ANTENNA SIMULATION DRAWING 4.0 mm 16.5 mm 11.0 mm 2.5 mm2.0 mm 5.0 mm X Y Z
2019-2022 Microchip Technology Inc. DS70000329D-page 17 MRF24J40MA
3.0 REGULATORY APPROVAL
The MRF24J40MA module has received the regulatory approval for the following countries:
- United States/FCC ID: OA3MRF24J40MA
- Canada/ISED - IC: 7693A-24J40MA - HVIN: MRF24J40MA
- Europe/CE
3.1 United States
The MRF24J40MA module has received Federal Com- munications Commission (FCC) CFR47 Telecommuni- cations, Part 15 Subpart C “Intentional Radiators” single-modular approval in accordance with Part 15.212 Modular Transmitter approval. Single-modular transmitter approval is defined as a complete RF trans- mission sub-assembly, designed to be incorporated into another device, that must demonstrate compliance with FCC rules and policies independent of any host. A transmitter with a modular grant can be installed in dif- ferent end-use products (referred to as a host, host product, or host device) by the grantee or other equip- ment manufacturer, then the host product may not require additional testing or equipment authorization for the transmitter function provided by that specific module or limited module device. The user must comply with a ll of the instructions pro- vided by the Grantee, which indicate installation and/or operating conditions necessary for compliance. The host product itself is required to comply with all other applicable FCC equipm ent authorizations, regu- lations, requirements and equipment functions that are not associated with the transmitter module portion. For example, compliance must be demonstrated: to regula- tions for other transmitter components within a host product; to requirements for unintentional radiators (Part 15 Subpart B), such as digital devices, computer peripherals, radio receivers, etc.; and to additional authorization requirements for the non-transmitter functions on the transmitter module (i.e., Verification, or Declaration of Conformity) as appropriate (e.g., Blue- tooth and Wi-Fi transmitter modules may also contain digital logic functions).
3.1.1 LABELING AND USER
The MRF24J40MA module has been labeled with its own FCC ID number, and if the FCC ID is not visible when the module is installed inside another device, then the outside of the finished product into which the module is installed must also display a label referring to the enclosed module. This exterior label must use the following wording: For the MRF24J40MA module: The user’s manual should include the following statement: Additional information on labeling and user information requirements for Part 15 devices can be found in KDB Publication 784748, which is available at the FCC Office of Engineering and Technology (OET) Labora- tory Division Knowledge Database (KDB) https://apps.fcc.gov/oetcf/kdb/index.cfm.
3.1.2 RF EXPOSURE
All transmitters regulated by FCC must comply with RF exposure requirements. KDB 447498 General RF Exposure Guidance provides guidance in determining whether proposed or existing transmitting facilities, operations or devices comply with limits for human exposure to Radio Frequency (RF) fields adopted by the Federal Communications Commission (FCC). From the FCC Grant: Output power listed is conducted. This grant is valid only when the module is sold to OEM integrators and must be installed by the OEM or OEM This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equip- ment generates, uses and can radiate radio fre- quency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the follow- ing measures:
- Reorient or relocate the receiving antenna
- Increase the separation between the equipment and receiver
- Connect the equipment into an outlet on a circuit different from that to which the receiver is con- nected
- Consult the dealer or an experienced radio/TV technician for help Contains Transmitter Module FCC ID: OA3MRF24J40MA -or- Contains FCC ID: OA3MRF24J40MA 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 interf erence that may cause undesired operation.
DS70000329D-page 18 2019-2022 Microchip Technology Inc. integrators. This transmitter is restricted for use with the specific antenna(s) tested in this application for Certification and must not be co-located or operating in conjunction with any other antenna or transmitters within a host device, except in accordance with FCC multi-transmitter product pr ocedures. This module is approved for installation into mobile or/and portable host platforms.
3.1.3 APPROVED ANTENNAS
To maintain modular approval in the United States, only the antenna types that have been tested must be used. It is permissible to use different antenna, provided the same antenna type, antenna gain (equal to or less than), with similar in-band and out-of band characteris- tics (refer to specification sheet for cutoff frequencies). For the MRF24J40MA module, the approval is received using the integral PCB antenna.
3.1.4 HELPFUL WEB SITES
Federal Communications Commission (FCC): http://www.fcc.gov FCC Office of Engineering and Technology (OET) Lab- oratory Division Knowledge Database (KDB): https://apps.fcc.gov/oetcf/kdb/index.cfm.
3.2 Canada
The MRF24J40MA module has been certified for use in Canada under Innovation, Science and Economic Development Canada (ISED, formerly Industry Can- ada) Radio Standards Procedure (RSP) RSP-100, Radio Standards Specification (RSS) RSS-247 and RSS-Gen. Modular approval permits the installation of a module in a host device without the need to recertify the device.
3.2.1 LABELING AND USER
Labeling Requirements for the Host product (from RSP-100, Issue 12, Section 5): The host product shall be properly labeled to identify the module within the host device. On the MRF24J40MA module, due to the limited mod- ule size, the IC identifier is displayed in the data sheet only and it cannot be displayed on the module label. The Innovation, Science and Economic Development Canada certification label of a module shall be clearly visible at all times when installed in the host device; otherwise, the host device must be labeled to display the Innovation, Science and Economic Development Canada certification number of the module, preceded by the word “Contains”, or similar wording expressing the same meaning, as follows: For the MRF24J40MA module: User Manual Notice for License-Exempt Radio Appara- tus (from Section 8.4, RSS-Gen, Issue 5, March 2019): User manuals for license-exempt radio apparatus shall contain the following or equivalent notice in a conspic- uous location in the user manual or alternatively on the device or both: Transmitter Antenna (From Section 6.8 RSS-GEN, Issue 5, March 2019): User manuals, for transmitters shall display the following notice in a conspicuous loca- tion: Immediately following the a bove notice, the manufac- turer must provide a list of all antenna types approved for use with the transmitter, indicating the maximum permissible antenna gain (in dBi) and required imped- ance for each. Contains IC: 7693A-24J40MA This device contains license-exempt transmit- ter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions: 1. This device may not cause interference; 2. This device must accept any interference, including interference that may cause undesired operation of the device. L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes: 1. L’appareil ne doit pas produire de brouillage; 2. L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionne- ment. This radio transmitter [IC: 7693A-24J40MA] has been approved by Innovation, Science and Eco- nomic 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 indica ted for any type listed are strictly prohibited for use with this device. Le présent émetteur radio [IC: 7693A-24J40MA a été approuvé par Innova- tion, Sciences et Développement économique Canada pour fonctionner avec les types d'antenne énumérés cidessous et ayant un gain admissible maximal. Le s types d'antenne non inclus dans cette liste, et dont le gain est supérieur au gain maximal indiqué pour tout type figurant sur la liste, sont strictement interdits pour l'exploitation de l'émetteur.
2019-2022 Microchip Technology Inc. DS70000329D-page 19 MRF24J40MA
3.2.2 RF EXPOSURE
All transmitters regulated by the Innovation, Science and Economic Development Canada (ISED) must comply with RF exposure requirements listed in RSS-102 - Radio Frequency (RF) Exposure Compli- ance of Radio communication Apparatus (All Fre- quency Bands). This transmitter is restricted for use with a specific antenna tested in this applic ation for certification, and must not be co-located or operating in conjunction with any other antenna or transmitters within a host device, except in accordance with Innovation, Science and Economic Development Canada multi-transmitter guidelines. The installation of the transmitter must ensure compli- ance is demonstrated according to the ISED SAR pro- cedures.
3.2.3 APPROVED ANTENNAS
For the MRF24J40MA module, the approval is received using the integral PCB antenna.
3.2.4 HELPFUL WEB SITES
Innovation, Science and Economic Development Can- ada (ISED): http://www.ic.gc.ca/.
3.3 Europe
The MRF24J40MA modules are Radio Equipment Directive (RED) assessed, CE marked, and have been manufactured and tested with the intention of being integrated into a final product. The MRF24J40MA modules have been tested to RED 2014/53/EU Essential Requirements mentioned in the following European Compliance table. TABLE 3-1: EUROPEAN COMPLIANCE The ETSI provides guidanc e on modular devices in “Guide to the application of harmonized standards cov- ering Article 3.1(b) and Arti cle 3.2 of the Directive 2014/53/EU RED to multi-radio and combined radio and non-radio equipment” document available at http://www.etsi.org/deliver/etsi_eg/203300_203399/20 3367/01.01.01_60/eg_203367v010101p.pdf.
3.3.1 LABELING AND USER
The label on the final product which contains the MRF24J40MA modules must follow CE marking requirements.
3.3.2 CONFORMITY ASSESSMENT
From ETSI guidance note EG 203367, section 6.1, the non-radio products are combined with a radio product: If the manufacturer of the combined equipment installs the radio product in a host non-radio product in equiva- lent assessment conditions (that is host equivalent to the one used for the assessm ent of the radio product) and according to the installation instructions for the radio product, then no additional assessment of the combined equipment against article 3.2 of the RED is required.
3.3.2.1 SIMPLIFIED EU DECLARATION OF
Hereby, Microchip Technology Inc. declares that the radio equipment type MRF24J40MA is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity, for this product, is available at https://www.micro- chip.com/en-us/product/MRF24J40MA. (available under Documents > Certifications)
3.3.3 APPROVED ANTENNAS
For MRF24J40MA, the approval is received using the integral PCB antenna.
3.3.4 HELPFUL WEB SITES
A document that can be used as a starting point in understanding the use of Short Range Devices (SRD) in Europe is the European Radio Communications Committee (ERC) Recommendation 70-03 E, which can be downloaded from the European Communications Committee (ECC) at http://www.ecodocdb.dk/. Additional helpful web sites are:
- Radio Equipment Directive (2014/53/EU): Certification Standards Article Safety EN 62368 3.1a Health EN 62479 Electro Magnetic Compatibility (EMC) EN 301 489-1 3.1b EN 301 489-17 Radio EN 300 328 3.2 Note: To maintain conformance to the testing listed in Table 3-1, the module is installed in accordance with the installation instruc- tions in this data sheet and must not be modified. When integrating a radio mod- ule into a completed product the integrator becomes the manufacturer of the final product and is theref ore responsible for demonstrating compliance of the final product with the essential requirements against RED.
DS70000329D-page 20 2019-2022 Microchip Technology Inc. https://ec.europa.eu/growth/single-market/euro
- European Conference of Postal and Telecommu- nications Administrations (CEPT): http://www.cept.org
- European Telecommunications Standards Insti- tute (ETSI): http://www.etsi.org The Radio Equipment Directive Compliance Associa- tion (REDCA): http://www.redca.eu/
2019-2022 Microchip Technology Inc. DS70000329D-page 21 MRF24J40MA NOTES:
DS70000329D-page 22 2019-2022 Microchip Technology Inc.
4.0 ELECTRICAL CHARACTERISTICS
TABLE 4-1: RECOMMENDED OPERATING CONDITIONS TABLE 4-2: CURRENT CONSUMPTION (TA = 25°C, VDD = 3.3V) TABLE 4-3: RECEIVER AC CHARACTERISTICS Typical values are at TA = 25°C, VDD = 3.3V, LO Frequency = 2.445 GHz Parameters Min Typ Max Units Ambient Operating Temperature -40 — +85 °C Supply Voltage for RF, Analog and Digital Circuits 3.0 — 3.6 V Supply Voltage for Digital I/O 3.0 3.3 3.6 V Input High Voltage (VIH) 0.5 x V DD —V DD + 0.3 V Input Low Voltage (VIL) -0.3 — 0.2 x V DD V Chip Mode Conditio n Min Typ Max Units Sleep Sleep Clock Disabled — 2 — A TX At Maximum Output Power — 23 — mA RX — 19 — mA Parameters Condition Min Typ Max Units RF Input Frequency Compatible to IEEE Std. 802.15.4™, 2003 2.405 — 2.480 GHz RF Sensitivity — -94 — dBm Maximum RF Input +5 — — dBm LO Leakage Measured at Balun Matching Network Input at Frequency, 2.405-2.48 GHz —- 6 0— d B m Input Return Loss Externally Matched to 50 ohm Source by a Balun Matching Network -8 -12 — dB Noise Figure (including matching) —8— d B Adjacent Channel Rejection @ +/-5 MHz 30 — — dB Alternate Channel Rejection RSSI Range — 50 — dB RSSI Error -5 — 5 dB
2019-2022 Microchip Technology Inc. DS70000329D-page 23 MRF24J40MA TABLE 4-4: TRANSMITTER AC CHARACTERISTICS Typical values are at TA = 25°C, VDD = 3.3V, LO Frequency = 2.445 GHz Parameters Condition Min Typ Max Units RF Carrier Frequency 2.405 — 2.480 GHz Maximum RF Output Power —0— d B m RF Output Power Control Range —3 6—d B TX Gain Control Resolution Programmed by Register — 1.25 — dB Carrier Suppression — -30 — dBc TX Spectrum Mask for O-QPSK Signal Offset Frequency > 3.5 MHz, at 0 dBm Output Power -33 — — dBm TX EVM — 15 — %
DS70000329D-page 24 2019-2022 Microchip Technology Inc. APPENDIX A: REVISION HISTORY Revision A (June 2008) Original data sheet for the MRF24J40MA device. Revision B (November 2008) Changed C17 to 1.0 pF and removed CLKOUT signal. Revision C (August 2019)
- Minimum operating voltage of the device is revised to 3.0V.
- Updated Microchip templates and DS number to 70000329C. Revision D (June 2022)
- Updated Section 3.0 “Regulatory Approval”.
2019-2022 Microchip Technology Inc. DS70000329D-page 25 MRF24J40MA NOTES:
DS70000329D-page 26 2019-2022 Microchip Technology Inc.
2019-2022 Microchip Technology Inc. DS70000329D-page 27 MRF24J40MA THE MICROCHIP WEBSITE Microchip provides online support via our WWW site at www.microchip.com. This website is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the website contains the following information:
- Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s guides and hardware support documents, latest software releases and archived software
- General Technical Support – Frequently Asked Questions (FAQ), technical support requests, online discussion groups, Microchip consultant program member listing
- Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives CUSTOMER CHANGE NOTIFICATION SERVICE Microchip’s customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest. To register, access the Microchip website at www.microchip.com . Under “Support”, click on “Customer Change Notification” and follow the registration instructions. CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels:
- Distributor or Representative
- Local Sales Office
- Field Application Engineer (FAE)
- Technical Support Customers should contac t their distributor, representative or Field Application Engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sa les offices and locations is included in the back of this document. Technical support is available through the website at: http://microchip.com/support
DS70000329D-page 28 2019-2022 Microchip Technology Inc. NOTES:
2019-2022 Microchip Technology Inc. DS70000329D-page 29 MRF24J40MA PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. -XX T Tape andModule Temperature Range Device Device MRF24J40MA; VDD range 3.0V to 3.6V Temperature Range I = -40 C to +85 C (Industrial) Examples: a) MRF24J40MA-I = Industrial temp. tray b) MRF24J40MAT-I = Industrial temp., tape and reel. M Module Type Reel
DS70000329D-page 30 2019-2022 Microchip Technology Inc. NOTES:
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