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Design notes

Design notes for RF pad devices

Digi XBee® RR RF Module Hardware Reference Manual

36

Design notes for RF pad devices

The RF pad is a soldered antenna connection. The RF signal travels from the RF pad connection (pad
33 on micro modules and pad 36 on surface-mount modules) on the device to the antenna through an
RF trace transmission line on the PCB. Any additional components between the device and antenna
violates modular certification. The controlled impedance for the RF trace is 50 Ω.

We recommend using a microstrip trace, although you can also use a coplanar waveguide if you need
more isolation. A microstrip generally requires less area on the PCB than a coplanar waveguide. We
do not recommend using a stripline because sending the signal to different PCB layers can introduce
matching and performance problems.

Following good design practices is essential when implementing the RF trace on a PCB. Consider the
following points:

n

Minimize the length of the trace by placing the RPSMA jack close to the device.

n

Connect all of the grounds on the jack and the device to the ground planes directly or through
closely placed vias.

n

Space any ground fill on the top layer at least twice the distance

d

, for Micro modules at least

0.028" and for surface mount modules at least 0.050".

Additional considerations:

n

The top two layers of the PCB have a controlled thickness dielectric material in between.

n

The second layer has a ground plane which runs underneath the entire RF pad area. This
ground plane is a distance

d

, the thickness of the dielectric, below the top layer.

n

The RF trace width determines the impedance of the transmission line with relation to the
ground plane. Many online tools can estimate this value, although you should consult the PCB
manufacturer for the exact width.

Implementing these design suggestions helps ensure that the RF pad device performs to its
specifications.

The following figures show a layout example of a host PCB that connects an RF pad device to a right
angle, through-hole RPSMA jack.

Содержание XBee RR

Страница 1: ...Digi XBee RR RF Module Hardware Reference Manual ...

Страница 2: ...t represent a commitment on the part of Digi International Digi provides this document as is without warranty of any kind expressed or implied including but not limited to the implied warranties of fitness or merchantability for a particular purpose Digi may make improvements and or changes in this manual or in the product s and or the program s described in this manual at any time Warranty To vie...

Страница 3: ...912 3444 or visit us at www digi com support Feedback To provide feedback on this document email your comments to techcomm digi com Include the document title and part number Digi XBee RR RF Module Hardware Reference Manual 90002517 C in the subject line of your email Digi XBee RR RF Module Hardware Reference Manual 3 ...

Страница 4: ...ulid 12 Turvallisuusohjeet 12 XBee moduulit 12 Consignes de sécurité 13 Modules XBee 13 Sicherheitshinweise 14 XBee Module 14 Ο δηγίες ασφαλείας 14 Biztonsági utasítások 15 XBee modulok 15 Istruzioni di sicurezza 15 Drošības instrukcijas 16 Saugos instrukcijos 16 XBee moduliai 16 Sikkerhetsinstruksjoner 17 XBee moduler 17 Instrukcje bezpieczeństwa 17 Moduły XBee 17 Instruções de segurança 18 Módul...

Страница 5: ...nce specifications 27 Networking and security specifications 27 Communication interface specifications 27 Mechanical drawings Micro antennas 29 Micro U FL RF Pad 29 Pin signals Pin signals for the XBee RR micro module 31 Recommended pin connections 33 Design notes Power supply design 35 Board layout 35 Antenna performance 35 Design notes for RF pad devices 36 Copper keepout for test points 38 Regu...

Страница 6: ...model XBRR 53 Maximum power and frequency specifications 54 CE and UKCA OEM labeling requirements 54 Declarations of conformity 55 Antennas 55 Brazil ANATEL 57 Modelo XBee XBRR 57 XBIB C development boards XBIB C Micro Mount reference 59 Incorrect 59 Correct 60 Attach the XBee RR RF Module 63 Micro 63 Manufacturing information Recommended solder reflow cycle 65 Handling and storage 65 Recommended ...

Страница 7: ...Digi XBee RR RF Module Hardware Reference Manual This manual provides information for the XBee RR RF Module hardware Digi XBee RR RF Module Hardware Reference Manual 7 ...

Страница 8: ...instructies 11 Ohutusjuhised 12 Turvallisuusohjeet 12 Consignes de sécurité 13 Sicherheitshinweise 14 Ο δηγίες ασφαλείας 14 Biztonsági utasítások 15 Istruzioni di sicurezza 15 Drošības instrukcijas 16 Saugos instrukcijos 16 Sikkerhetsinstruksjoner 17 Instrukcje bezpieczeństwa 17 Instruções de segurança 18 Instructiuni de siguranta 19 Bezpečnostné inštrukcie 19 Varnostna navodila 20 Módulos XBee 20...

Страница 9: ...water or moisture n Use this product with the antennas specified in the XBee module user guides n The end user must be told how to remove power from the XBee radio module or to locate the antennas 20 cm from humans or animals И нс трукции за безопас нос т XBee модули n Р адио модулът XBee не може да бъде гарантиран за работа поради радиовръзката и затова не трябва да се използва за блокировки в кр...

Страница 10: ...akonitog rada radija n Koristite standardnu ESD zaštitu pri rukovanju XBee modulom n Budite oprezni tijekom rukovanja kako biste izbjegli električna oštećenja PCB a i komponenti n Ne izlažite XBee radio module vodi ili vlazi n Koristite ovaj proizvod s antenama navedenim u korisničkim vodičima za XBee modul n Krajnjem korisniku se mora reći kako da isključi napajanje iz XBee radio modula ili da lo...

Страница 11: ...let Fjern ikke skjoldet eller modificer XBee på nogen måde Ændringer kan udelukke modulet fra enhver garanti og kan få XBee radioen til at fungere uden for lovgivningsoverholdelse for et givet land hvilket kan føre til den mulige ulovlige drift af radioen n Brug industristandard ESD beskyttelse når du håndterer XBee modulet n Vær forsigtig under håndteringen for at undgå elektrisk beskadigelse af ...

Страница 12: ...aadiolingi tõttu garanteerida ja seetõttu ei tohiks seda kasutada ohutuse seisukohalt oluliste seadmete nt masinad või autorakendused blokeerimiseks n XBee raadiomoodulit ei ole heaks kiidetud kasutamiseks see loetelu ei ole ammendav l meditsiiniseadmed l tuumarakendused l plahvatusohtlik või tuleohtlik keskkond n XBee raadiomoodulis ei ole kasutaja poolt hooldatavaid komponente Ärge eemaldage kai...

Страница 13: ...Bee ne peut pas être garanti en raison de la liaison radio et ne doit donc pas être utilisé pour les verrouillages dans des dispositifs critiques pour la sécurité tels que des machines ou des applications automobiles n Le module radio XBee n a pas été approuvé pour une utilisation dans cette liste n est pas exhaustive l dispositifs médicaux l applications nucléaires l atmosphères explosives ou inf...

Страница 14: ...meiden n XBee Funkmodule nicht Wasser oder Feuchtigkeit aussetzen n Verwenden Sie dieses Produkt mit den in den Benutzerhandbüchern des XBee Moduls angegebenen Antennen n Dem Endbenutzer muss mitgeteilt werden wie er das XBee Funkmodul von der Stromversorgung trennt oder die Antennen 20 cm von Menschen oder Tieren entfernt aufstellt Ο δηγίες ασφαλείας Μονάδες XBee n Η μονάδα ραδιοφώνου XBee δεν μπ...

Страница 15: ... t A módosítások kizárhatják a modult a jótállásból és az XBee rádió működését az adott ország jogszabályi előírásaitól eltérően okozhatják ami a rádió esetleges illegális működéséhez vezethet Az XBee modul kezelésekor használjon ipari szabványos ESD védelmet A kezelés során ügyeljen arra hogy elkerülje a PCB és az alkatrészek elektromos károsodását Ne tegye ki az XBee rádiómodulokat víznek vagy n...

Страница 16: ...ts nav pilnīgs l medicīniskās ierīces l kodolprogrammas l sprādzienbīstamā vai uzliesmojošā vidē n XBee radio moduļa iekšpusē nav neviena komponenta ko lietotājs varētu apkopt Nenoņemiet vairogu un nekādā veidā nepārveidojiet XBee Modifikācijas rezultātā modulis var tikt izslēgts no jebkādas garantijas un var izraisīt XBee radio darbību kas neatbilst noteiktās valsts normatīvajiem aktiem izraisot ...

Страница 17: ...iomodulen er ikke godkjent for bruk i denne listen er ikke uttømmende l medisinsk utstyr l kjernefysiske applikasjoner l eksplosive eller brennbare atmosfærer n Det er ingen komponenter som kan repareres av brukeren inne i XBee radiomodulen Ikke fjern skjoldet eller modifiser XBee på noen måte Endringer kan ekskludere modulen fra enhver garanti og kan føre til at XBee radioen fungerer utenfor rege...

Страница 18: ...ludzi lub zwierząt Instruções de segurança Módulos XBee n O módulo de rádio XBee não pode ter operação garantida devido ao link de rádio e portanto não deve ser usado para intertravamentos em dispositivos críticos de segurança como máquinas ou aplicações automotivas n O módulo de rádio XBee não foi aprovado para uso em esta lista não é exaustiva l o dispositivos médicos l o aplicações nucleares l ...

Страница 19: ...iorarea electrică a PCB ului și a componentelor n Nu expuneți modulele radio XBee la apă sau umezeală n Utilizați acest produs cu antenele specificate în ghidurile utilizatorului modulului XBee n Utilizatorului final trebuie să i se spună cum să scoată alimentarea de la modulul radio XBee sau să găsească antenele la 20 cm de oameni sau animale Bezpečnostné inštrukcie moduly XBee n Rádiový modul XB...

Страница 20: ...i ravnanju z modulom XBee uporabite standardno industrijsko zaščito pred ESD n Pri rokovanju pazite da se izognete električnim poškodbam tiskanega vezja in komponent n Radijskih modulov XBee ne izpostavljajte vodi ali vlagi n Ta izdelek uporabljajte z antenami navedenimi v uporabniških priročnikih modula XBee n Končnemu uporabniku je treba povedati kako odstraniti napajanje z radijskega modula XBe...

Страница 21: ...nte godkänts för användning i denna lista är inte uttömmande l medicinsk utrustning l kärnkraftstillämpningar l explosiv eller brandfarlig atmosfär n Det finns inga komponenter som användaren kan reparera inuti XBee radiomodulen Ta inte bort skölden eller modifiera XBee på något sätt Ändringar kan utesluta modulen från alla garantier och kan göra att XBee radion fungerar utanför bestämmelserna för...

Страница 22: ...r the hardware General specifications 23 Electrical characteristics 23 Power requirements 23 Regulatory conformity summary 24 Serial communication specifications 25 GPIO specifications 25 Electro Static Discharge ESD 25 Digi XBee RR RF Module Hardware Reference Manual 22 ...

Страница 23: ...nalog inputs Electrical characteristics The following table lists the electrical characteristics for the XBee RR RF Module Symbol Parameter Condition Min Typical Max Units VI Input pins 0 3 VCC 0 3 V VIL Input low voltage 0 3 VCC V VIH Input high voltage 0 7 VCC V VOL Output low voltage Sinking 3 mA VCC 3 3 V 0 2 VCC V VOH Output high voltage Sourcing 3 mA VCC 3 3 V 0 8 VCC V IIN Input leakage cur...

Страница 24: ...urrent uA 8 XBee power supply should be designed to operate at 1 8 V or above Regulatory conformity summary Approval XBee RR XBee RR PRO Model XBRR XBPRR United States FCC part 15 247 FCC ID MCQ XBRR FCC ID MCQ XBPRR Innovation Science and Economic Development Canada ISED IC 1846A XBRR IC 1846A XBPRR Transmit Output Power for BLE 8 dBm 8 dBm Transmit Output Power for 802 15 4 8 dBm 19 dBm Bluetoot...

Страница 25: ...ules have 15 General Purpose Input Output GPIO ports available The exact list depends on the device configuration as some GPIO pads are used for purposes such as serial communication GPIO electrical specification Value Input pull up resistor value 40 kΩ typical Input pull down resistor value 40 kΩ typical Output voltage for logic 0 0 2 x VCC maximum Output voltage for logic 1 0 8 x VCC minimum Out...

Страница 26: ...ic to the XBee RR RF Module when using the IEEE 802 15 4 physical layer for example XBee 802 15 4 Zigbee DigiMesh and so on Performance specifications 27 Networking and security specifications 27 Communication interface specifications 27 Digi XBee RR RF Module Hardware Reference Manual 26 ...

Страница 27: ... orientation of transmitter and receiver height of transmitting antenna height of receiving antenna weather conditions interference sources in the area and terrain between receiver and transmitter including indoor and outdoor structures such as walls trees buildings hills and mountains Networking and security specifications The following table describes the networking and security specifications f...

Страница 28: ...Mechanical drawings The following mechanical drawings of the XBee RR RF Modules show all dimensions in inches Micro antennas 29 Digi XBee RR RF Module Hardware Reference Manual 28 ...

Страница 29: ...Mechanical drawings Micro antennas Digi XBee RR RF Module Hardware Reference Manual 29 Micro antennas The following mechanical drawings are for the XBee RR RF Module micro antennas Micro U FL RF Pad ...

Страница 30: ...Pin signals Pin signals for the XBee RR micro module 31 Recommended pin connections 33 Digi XBee RR RF Module Hardware Reference Manual 30 ...

Страница 31: ...e shows the pin signals and their descriptions for the XBee RR RF Module Pin Name Direction Default state Description 1 GND Ground 2 VCC Power supply 3 DOUT DIO13 Both Output UART data out GPIO 4 DIN CONFIG DIO14 Both Input UART data in GPIO 5 DIO12 Both GPIO 6 RESET Input Device reset 7 Connected to Pin 8 with 4 7 K resistor 8 Connected to Pin 7 with 4 7 K resistor 9 DTR SLEEP_RQ DIO8 Both Input ...

Страница 32: ...eral interface not select GPIO 15 SPI_MOSI DIO16 Input Input Serial peripheral interface data in GPIO 16 SPI_MISO DIO15 Output Output Serial peripheral interface data out GPIO 17 reserved Disabled Do not connect 18 reserved Disabled Do not connect 19 reserved Disabled Do not connect 20 reserved Disabled Do not connect 21 GND Ground 22 reserved Disabled Do not connect 23 DIO4 Both Disabled GPIO 24 ...

Страница 33: ...omplete list of functionalities See the applicable software manual for available functionalities Note There are three RF test points located on the bottom of the device Do not connect these test points For more information see Recommended footprint See Design notes for details on pin connections Recommended pin connections The only required pin connections for two way communication are VCC GND DOU...

Страница 34: ...er operation However there are some general design guidelines that we recommend to build and troubleshoot a robust design Power supply design 35 Board layout 35 Antenna performance 35 Design notes for RF pad devices 36 Copper keepout for test points 38 Digi XBee RR RF Module Hardware Reference Manual 34 ...

Страница 35: ... the exception of antennas Antenna performance Antenna location is important for optimal performance The following suggestions help you achieve optimal antenna performance Point the antenna up vertically upright Antennas radiate and receive the best signal perpendicular to the direction they point so a vertical antenna s omnidirectional radiation pattern is strongest across the horizon Position th...

Страница 36: ...Consider the following points n Minimize the length of the trace by placing the RPSMA jack close to the device n Connect all of the grounds on the jack and the device to the ground planes directly or through closely placed vias n Space any ground fill on the top layer at least twice the distance d for Micro modules at least 0 028 and for surface mount modules at least 0 050 Additional consideratio...

Страница 37: ...his example is on a surface mount device The width in this example is approximately 0 045 for a 50 Ω trace assuming d 0 025 and that the dielectric has a relative permittivity of 4 4 This trace width is a good fit with the device footprint s 0 060 pad width Note We do not recommend using a trace wider than the pad width and using a very narrow trace under 0 010 can cause unwanted RF loss The follo...

Страница 38: ...ount devices These keepouts are in addition to the other keepouts if using a PCB antenna While the underside of the device is mostly coated with solder resist we recommended the copper layer directly below the device be left open to avoid unintended contacts Copper or vias must not interfere with the three exposed RF test points on the bottom of the device as shown in the following diagrams These ...

Страница 39: ...Design notes Copper keepout for test points Digi XBee RR RF Module Hardware Reference Manual 39 Copper keepout for the Micro ...

Страница 40: ...egulatory information United States FCC 41 ISED Innovation Science and Economic Development Canada 52 Europe CE UKCA for model XBRR 53 Brazil ANATEL 57 Digi XBee RR RF Module Hardware Reference Manual 40 ...

Страница 41: ...uirements WARNING As an Original Equipment Manufacturer OEM you must ensure that FCC labeling requirements are met You must include a clearly visible label on the outside of the final product enclosure that displays the following content Required FCC Label for OEM products containing the XBee XBRR Zigbee RF Modules Contains FCC ID MCQ XBRR This device complies with Part 15 of the FCC Rules Operati...

Страница 42: ...n 15 247 Emissions The antennas in the tables below have been approved for use with this module Correct cable loss or power reduction is required when using gain antennas as shown in the tables Digi does not carry all of these antenna variants Contact Digi Sales for available antennas 1 If using the RF module in a portable application for example if the module is used in a hand held device and the...

Страница 43: ...le loss dB 802 15 4 Based Protocols Ex Zigbee Bluetooth low energy technology when available Integral antennas 29000710 Chip antenna micro only 0 0 Fixed Mobile 20 cm N A N A Dipole antennas A24 HASM 450 Dipole Half wave articulated RPSMA 4 5 2 1 Fixed 20 cm 0 52 0 52 A24 HABSM Dipole Articulated RPSMA 2 1 Fixed 20 cm 0 52 0 52 29000095 Dipole Half wave articulated RPSMA 4 5 2 1 Fixed Mobile 20 cm...

Страница 44: ... directional Fiberglass base station 8 0 Fixed 2 m 3 72 N A A24 F9NF Omni directional Fiberglass base station 9 5 Fixed 2 m 5 22 N A A24 F10NF Omni directional Fiberglass base station 10 0 Fixed 2 m 5 72 N A A24 F12NF Omni directional Fiberglass base station 12 0 Fixed 2 m 7 72 N A A24 W7NF Omni directional Fiberglass base station 7 2 Fixed 2 m 2 92 N A A24 M7NF Omni directional Mag mount base sta...

Страница 45: ...Panel 19 0 Fixed 2 m 17 82 7 58 Yagi antennas A24 Y6NF Yagi 6 element 8 8 Fixed 2 m 5 52 N A A24 Y7NF Yagi 7 element 9 0 Fixed 2 m 5 72 N A A24 Y9NF Yagi 9 element 10 0 Fixed 2 m 6 72 N A A24 Y10NF Yagi 10 element 11 0 Fixed 2 m 7 72 N A A24 Y12NF Yagi 12 element 12 0 Fixed 2 m 8 72 N A A24 Y13NF Yagi 13 element 12 0 Fixed 2 m 8 72 N A A24 Y15NF Yagi 15 element 12 5 Fixed 2 m 9 22 N A A24 Y16NF Ya...

Страница 46: ...r Type description Gain dB Application Min separation Model XBPRR Required antenna cable loss dB 802 15 4 Based Protocols Ex Zigbee Bluetooth low energy technology when available Integral antennas 29000710 Chip antenna micro only 0 0 Fixed Mobile 20 cm N A N A Dipole antennas A24 HASM 450 Dipole Half wave articulated RPSMA 4 5 2 1 Fixed 20 cm N A N A A24 HABSM Dipole Articulated RPSMA 2 1 Fixed 20...

Страница 47: ...20 cm N A N A Omni directional Collinear Dipole Array antennas A24 F2NF Omni directional Fiberglass base station 2 1 Fixed Mobile 20 cm N A N A A24 F3NF Omni directional Fiberglass base station 3 0 Fixed Mobile 20 cm N A N A A24 F5NF Omni directional Fiberglass base station 5 0 Fixed 20 cm 0 22 N A A24 F8NF Omni directional Fiberglass base station 8 0 Fixed 2 m 3 22 N A A24 F9NF Omni directional F...

Страница 48: ...2 Fixed 2 m 2 22 N A A24 M7NF Omni directional Mag mount base station 7 2 Fixed 2 m 2 22 N A A24 F15NF Omni directional Fiberglass base station 15 0 Fixed 2 m 10 22 0 44 Panel antennas A24 P8SF Flat Panel 8 5 Fixed 2 m 3 54 N A A24 P8NF Flat Panel 8 5 Fixed 2 m 3 54 N A A24 P13NF Flat Panel 13 0 Fixed 2 m 8 54 1 7 A24 P14NF Flat Panel 14 0 Fixed 2 m 9 54 2 7 A24 P15NF Flat Panel 15 0 Fixed 2 m 10 ...

Страница 49: ... m 8 22 N A A24 Y16RM Yagi 16 element RPSMA connector 13 5 Fixed 2 m 8 22 N A A24 Y18NF Yagi 18 element 15 0 Fixed 2 m 10 22 0 44 Patch antenna Taoglas FXP74 07 0100A 2 4 GHz band antenna 4 Fixed 20 cm N A N A If using the RF module in a portable application for example if the module is used in a handheld device and the antenna is less than 20 cm from the human body when the device is in operation...

Страница 50: ... 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 following measures Re orient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect eq...

Страница 51: ...t manufacturers need to follow the sticker guidelines outlined in OEM labeling requirements 2 9 Information on test modes and additional testing requirements Contact a Digi sales representative for information on how to configure test modes for the XBee RR product 2 10 Additional testing Part 15 Subpart B disclaimer All final host products must be tested to be compliant to FCC Part 15 Subpart B st...

Страница 52: ...pareil doit accepter tout brouillage radioélectrique subi même si le brouillage est susceptible d en compromettre le fonctionnement For PRO model XBPRR XBee RR RF MMT Contains Model XBPRR IC 1846A XBPRR The integrator is responsible for its product to comply with IC ICES 003 FCC Part 15 Sub B Unintentional Radiators ICES 003 is the same as FCC Part 15 Sub B and Industry Canada accepts FCC test rep...

Страница 53: ...y operate using only an antenna of a type and maximum or lesser gain approved for the transmitter by Industry Canada To reduce potential radio interference to other users the antenna type and its gain should be so chosen that the equivalent isotropically radiated power EIRP is not more than that necessary for successful communication Conformément à la réglementation d Industrie Canada le présent é...

Страница 54: ...ny or accompanying documents CE labeling requirements The CE marking must be affixed to a visible location on the OEM product The following figure shows CE labeling requirements The CE mark shall consist of the initials CE taking the following form n If the CE marking is reduced or enlarged the proportions given in the above graduated drawing must be respected n The CE marking must have a height o...

Страница 55: ... can take different forms for example the colour does not have to be solid as long as it remains visible legible and maintains the required proportions Important note Digi customers assume full responsibility for learning and meeting the required guidelines for each country in their distribution market Refer to the radio regulatory agency in the desired countries of operation for more information ...

Страница 56: ...ormation Europe CE UKCA for model XBRR Digi XBee RR RF Module Hardware Reference Manual 56 n Dipole 2 1 dBi Omni directional Articulated RPSMA Digi part number A24 HABSM n Chip antenna micro form factor only 0 0 dBi ...

Страница 57: ...for conformity to the same Brazilian standards Modelo XBee XBRR Atendimento à Regulamentação Anatel Este equipamento não tem direito à proteção contra interferência prejudicial e não pode causar interferência em sistemas devidamente autorizados Este produto está homologado pela ANATEL de acordo com os procedimentos regulamentados pela Resolução 242 2000 e atende aos requisitos técnicos aplicados P...

Страница 58: ...lopment boards This section describes the XBIB C development boards and how to interact with them XBIB C Micro Mount reference 59 Attach the XBee RR RF Module 63 Digi XBee RR RF Module Hardware Reference Manual 58 ...

Страница 59: ...his picture shows the XBee C Micro Mount development board and the table that follows explains the callouts in the picture Note This board is sold separately WARNING Connecting one pin off will destroy the unit under test Always disconnect USB and power before changing one unit for another See the following images for examples Incorrect ...

Страница 60: ...XBIB C development boards XBIB C Micro Mount reference Digi XBee RR RF Module Hardware Reference Manual 60 Correct ...

Страница 61: ...XBIB C development boards XBIB C Micro Mount reference Digi XBee RR RF Module Hardware Reference Manual 61 ...

Страница 62: ...P DIO9 Blue Connection Status DIO5 Yellow RSSI PWM0 DIO10 6 User Buttons Comm DIO0 Button connects the Commissioning DIO0 pin on the XBee Connector through to a 10 Ω resistor to GND when pressed RESET Button Connects to the RESET pin on the XBee Connector to GND when pressed 7 Breakout Connector This 40 pin connector can be used to connect to various XBee pins as shown on the silkscreen on the bot...

Страница 63: ...F Module It is important to attach the device to the board correctly WARNING Make sure the board is NOT powered when you plug in the XBee RR RF Module Never insert or remove the XBee RR RF Module while the power is on Make sure the XBee RR RF Module is oriented correctly and not upside down when you attach it to the board Micro ...

Страница 64: ...signed for surface mounting on the OEM PCB It has castellated pads to allow for easy solder attaching and inspection The pads are all located on the edge of the device so there are no hidden solder joints on these devices Recommended solder reflow cycle 65 Handling and storage 65 Recommended footprint 65 Flux and cleaning 66 Reworking 67 ...

Страница 65: ... in accordance with standard IPC JEDEC J STD 020 In addition note the following conditions a Calculated shelf life in sealed bag 12 months at 40 C and 90 relative humidity RH b Environmental condition during the production 30 C 60 RH according to IPC JEDEC J STD 033C paragraphs 5 through 7 c The time between the opening of the sealed bag and the start of the reflow process cannot exceed 168 hours ...

Страница 66: ...owest setting Flux and cleaning Digi recommends that a no clean solder paste be used in assembling these devices This eliminates the clean step and ensures unwanted residual flux is not left under the device where it is difficult to remove In addition the following issues can occur n Cleaning with liquids can result in liquid remaining under the shield or in the gap between the device and the OEM ...

Страница 67: ... void warranty coverage and certifications We recognize that some customers choose to rework and void the warranty The following information serves as a guideline in such cases to increase the chances of success during rework though the warranty is still voided The device may be removed from the OEM PCB by the use of a hot air rework station or hot plate Be careful not to overheat the device Durin...

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