A20737x User`s Manual
Contents
1. Output Power dBm 3 1 5 9 13 17 21 25 TX Current mA 20 15 13 12 11 10 9 7 9 5 RX Current mA 25 Idle Current mA 3 5 Please note that the specified current consumption numbers are for radio operation only and do not include other MCU peripherals 2 3 2 Europe For Europe the maximum allowed output power is 100mW with a spectral power density limit of 10mW MHz A20737x modules comply with the power spectral density requirements at their highest power level therefore approved power levels given in Table 2 apply Please refer to Table 3 for the available power levels from this module 2 3 3 Bluetooth End products using A20737A or A20737C modules should have their own End Product Listing EPL through Bluetooth SIG in order to be advertised as Bluetooth Smart compliant Please check the easy to follow guide located at http www bluetooth org for more information Anaren Integrated Radio AIR Page 18 of 34 A20737x User s Manual Release Date 01 16 15 THIS PAGE INTENTIONALLY LEFT BLANK Anaren Integrated Radio AIR A20737x User s Manual Release Date 01 16 15 Page 19 of 34 3 Electrical Characteristics 3 1 Absolute Maximum Ratings Under no circumstances shall the absolute maximum ratings given in Table 4 be violated Stress exceeding one or more of the limiting values may cause permanent damage to the device Caution ESD sensit2. 28 43 SOLAS c MN 29 43 1 Manual Mounting Procedure uiuere der re reo et ee i eee riva S EY 29 43 2 Automated Mounting Procedure cese me i ERE HER EIER 30 Anaren Integrated Radio AIR Page 4 of 34 A20737x User s Manual Release Date 01 16 15 THIS PAGE INTENTIONALLY LEFT BLANK Anaren Integrated Radio AIR A20737x User s Manual Page 5 of 34 Release Date 01 16 15 1 Overview Anaren Integrated Radio AIR modules A20737A and A20737C are surface mount 2 4GHz RF transceivers incorporating Bluetooth Smart technology that conforms to the Bluetooth v4 0 core specification The A20737A has an integral antenna and the A20737C uses an external antenna through a U FL connector These modules incorporate a crystal 512 Kbit EEPROM the required RF matching and filtering for regulatory compliance as well as filtering for noise reduction and sensitivity They operate in the global unlicensed 2 4GHz ISM SRD frequency band The modules are ideal for achieving low power long range wireless connectivity without having to deal with extensive protocol RF antenna design and regulatory compliance issues as a result costs and time to market can be reduced significantly They are completely tested to provide consistent performance The A20737x modules have received regulatory approvals for modular devices in the United States FCC
3. PU SPI 1 MOSI master only GPIOO CTS Clock signal for an external I2C device with a 10kQ internal pull up resistor PU SPI 1 SPI master only GPIO1 RTS 12 TMC Digital Test mode control with a 10 internal pull 17 input PD down resistor Pull high for test mode 13 RST I O PU Active low system reset with open drain 18 output amp internal pull up resistor Anaren Integrated Radio AIR Page 22 of 34 A20737x User s Manual Release Date 01 16 15 Pin Number 14 Pin Name PO Pin Type Digital Pin Description amp Alternate Functions Floating input after POR State GPIO PO A D Converter input Peripheral UART puart_tx SPI_2 MOSI master and slave IR RX 60 Hz main Not available during TMC 1 BCM20737 PIN 19 15 P1 Digital input PU Active low write control for the internal EEPROM with a 10kQ internal pull up resistor GPIO P1 AID converter unit Peripheral UART puart rts SPI 2 MISO master and slave R TX 20 16 P3 Digital 1 0 Floating input after POR State GPIO P3 Peripheral UART puart_cts SPI_2 SPI_CLK master and slave 21 17 P2 Digital Floating input after State GPIO P2 Peripheral UART puart_rx SPI_2 SPI CS slave only SPI 2 SPI MOSI master only 22 18 P4 Digital
4. Canada IC and Europe ETSI The modular approval allows the end user to place either an A20737A or an A20737C with an approved antenna inside a finished product without having to perform costly regulatory testing for an intentional RF radiator Section 2 3 has information on the requirements for the end user integrator to fulfill in order to use the modules without intentional radiator regulatory testing The A20737x is based on the BCM20737 SoC transceiver from Broadcom The BCM20737 combines the excellent performance of a leading RF transceiver with an integrated ARM Cortex M3 based microprocessor core All control lines are provided at module level for full control of the operation The A20737x modules are available loaded with BLE Stack firmware from Broadcom and 512 Kbit EEPROM for customer applications The A20737x module measures 11 mm x 13 mm x 2 5 mm All of the A20737x modules are footprint compatible with each other 1 1 A20737A The A20737A has an integral antenna providing high efficiency and near omni directional radiation pattern This approach offers the lowest system cost when the application allows collocation of radio and antenna See Figure 6 Figure 7 for more information on antenna location and enclosure considerations 1 2 A20737C The A20737C has a compact antenna connector that allows for locating the antenna away from the module due to form function or in order to exit a metal enclosure Please see T
5. Floating input after State GPIO P4 Peripheral UART puart_rx SPI 2 MOSI master and slave IR TX 23 19 P8 P33 Digital Floating input after State A D converter input P8 GPIO P8 External T R switch control tx_pd P33 GPIO P33 SPI 2 MOSI slave only Auxiliary clock output ACLK1 Peripheral UART puart rx 24 Anaren Integrated Radio AIR A20737x User s Manual Release Date 01 16 15 Page 23 of 34 Pin Number Pin Name Pin Type Pin Description amp Alternate Functions BCM20737 PIN 20 P32 Digital Floating input after State GPIO P32 A D converter input Peripheral UART puart_tx SPI_2 SPI CS slave only SPI_1 MISO master only Auxiliary clock output ACLKO 25 21 P25 Digital Floating input after State GPIO P25 Peripheral UART puart_rx SPI_2 MISO master and slave 26 22 P24 Digital Floating input after State GPIO P24 Peripheral UART puart_tx SPI 2 SPI_CLK master and slave SPI 1 MISO master only 27 23 P14 P38 Digital Floating input after State A D converter input P14 GPIO P14 PWM2 P38 GPIO P38 SPI 2 MOSI master and slave IR TX 30 24 P13 P28 Digital O Floating input after POR State A D c
6. ensure P11 P27 XIN32 EE ot Le SLL V AE mating footprint pads GND PIAA EE 12 26 032 isolated UART_RX IL f oP 4 P13 P28 UART_TX J8 231 P14 P38 GND Ground Connect the SDA ima 7220 P24 maximum number possible SCL m SSA 21 1 P25 minimum one for proper 2 13 14 15 16 1 20 operation LUEUR ME PEERLESS e Figure 4 A20737x Module pin out viewed from top side Anaren Integrated Radio AIR A20737x User s Manual Release Date 01 16 15 Page 21 of 34 Table 6 A20737x Pin Descriptions With References To Chip Pins Pin Description amp Alternate Functions oe Pin Name Pin Type Common Ground Connect to GND Do Not Connect Connecting this pin to anything will significantly affect the performance of the module and may void the end users right under FCC to operate the module Pin is not internally connected Floating input after POR State Digital GPIO P15 A D Converter input IR RX 60 Hz main UART serial input Serial data input for the UART RX Digital HCI UART interface with a 10kQ internal pull input PD down resistor Leave unconnected if not used GPIO3 Digital UART serial output Serial data output for the HCI UART interface Leave unconnected UART_TX output PU if not used GPIO2 Data signal for an external I2C device with a 10kQ internal pull up resistor
7. A20737x modules meet many national regulations for worldwide Industrial Scientific and Medical ISM radio bands use In particular the radio modules have been certified to the following standards 2 1 Product Approvals 2 1 1 USA Federal Communications Commission FCC The A20737x modules have been tested to comply with FCC CFR47 Part 15 sub part C Intentional Radiators standard as well as Part 15 Sub part B The modules meet the requirements for modular transmitter approval as detailed in FCC public notice DA 00 1407 released in June 26 2000 The modular transmitter approval eliminates the need to re perform costly and time consuming intentional radiator testing when submitting an end product for certification 15 19a3 The A20737x modules comply 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 Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment 2 1 1 1 FCC Labeling Requirements The A20737x modules have been labeled with their 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
8. providing users with information concerning minimum separation distances from transmitting structures and proper installation of antennas The following statement must be included as a CAUTION statement in manuals and OEM products to alert users of IC RF Exposure compliance Notice To satisfy Industry Canada requirements the antenna used with this transmitter must not be co located or operating in conjunction with any other antenna or transmitter except as permitted by Industry Canada s multi transmitter procedures Avis Pour satisfaire aux exigences d Industrie Canada l antenne utilis e avec cet metteur ne doit pas tre colocalis e ni de fonctionner en conjonction avec une autre antenne ou un autre metteur sauf dans la mesure permise par les proc dures multi metteurs de l Industrie Canada Anaren Integrated Radio AIR Page 14 of 34 A20737x User s Manual Release Date 01 16 15 2 1 3 Europe Conformit Europ enne C The A20737x modules have been certified for use in European countries covered by ETSI regulations The following tests have been performed and the module found to be compliant to the requirements gt Test standard ETSI EN 300 328 V1 8 1 2012 04 4 SN s S lt RF Output Power Duty Cycle Occupied Bandwidth RF Output Power Spectral Power Density Transmitter Spurious Emissions Receiver Spurious Emissions gt Electro Static Discharge and RF Imm
9. 2 Classification Reflow Profiles An TE ramp 3 C second max 3 C second max Tsmax to Tp Preheat Temperature Min TSmin 100 C 150 C Temperature Max TSmax 150 C 200 C Time 5 to TSmax ts 60 120 seconds 60 180 seconds Time maintained above Temperature 183 C 217 C Time tj 60 150 seconds 60 150 seconds Peak Temperature Tp See Table 4 1 See Table 4 2 Time within 5 Cof actual Peak 10 30 seconds 208 seconds Temperature Ramp down Rate 6 C second max 6 C second max Time 25 C to Peak Temperature Note 1 All temperatures refer to topside of the package measured on the package body surface Note 2 Time within 5 C of actual peak temperature tp specified for the reflow profiles is a supplier minimum and user maximum Tp F 3 m Critical Zone oy T to Tp Temperature Preheat 25 t 25 C to Peak Time gt Classification Reflow Profile Anaren Integrated Radio AIR A20737x User s Manual Page 31 of 34 Release Date 01 16 15 SnPb Eutectic Process Package Peak Reflow Temperatures Volume mm Volume mm Package Thickness 350 gt 350 lt 2Smm 5 lt 2Smm 240 0 5 C 225 0 5 C 225 0 5 C 225 0 5 C Pb free Process Package Peak Reflow Temperatures ET a lt 350 350 2000 gt 2000 lt 16mm 250 C 245 C 245 Tolerance The device manufacturer supplier shall assu
10. 737A 11 4 MAX En PE 0 65 13 4 12 35 Figure 8 A20737A Dimensions 4 1 2 A20737C 1 67 20 36 C9 C9 C9 C9 C9 Figure 9 A20737C Dimensions Anaren Integrated Radio AIR Page 28 of 34 A20737x User s Manual Release Date 01 16 15 4 2 Packaging Details dimensions in mm AIR modules are available in Matrix Tray and Tape amp Reel packaging for high volume assembly Details of packaging provided below 4 2 1 Matrix Tray Packaging 8 00 X 45 0 CHAMFER Anaren 17 69 TYP D1_Y 90 5 76 35 D1 X 172 10 Figure 10 A20737AxxGM and A20737CxxGM Matrix Tray Packaging Detail 36 Tray 4 2 2 Tape Reel Packaging 2 05 0 1 TYP P2 SEE NOTE 3 5 4 04 0 1 TYP Po SEE NOTE 3 6 0 304 0 05 eT 1 754 0 1 E1 11 54 0 1 F SEE NOTE 3 5 13 80 Bo RO 3 0 3 24 0 07 W 3 00 SECTION DIRECTION OF PART FEED UNLOADING gt SCALE 3 1 Figure 11 A20737AxxGR and A20737CxxGR Tape Reel Packaging Detail 500 Reel Anaren Integrated Radio AIR A20737x User s Manual Page 29 of 34 Release Date 01 16 15 4 3 Soldering AIR Modules may be mounted either manually for prototyping or low volume production or automatically for high volume production A no clean tin silver copper SAC solder is recommended however lead based no clean pa
11. Anaren Integrated Radio AIR Low power RF modules firmware amp development tools that make it easy to go wireless Anaren Integrated Radio A20737x User s Manual Release Date 01 16 15 Anaren 2 Inc 6635 Kirkville Road East Syracuse NY 13057 What ll we think of next 800 411 6596 www anaren com air AlR anaren com THIS PAGE INTENTIONALLY LEFT BLANK USER S MANUAL Models A20737A and A20737C Contents rareo PTE PE PER tatis PR E E rie rne tte 5 RO a 5 12 UA OT 5 1 92 veneremur mein ceca rl o d ect ane areata 6 14 Theory of Operati once eene oe tener alo ioter o dus Le tete Dr eost Yer iere 6 155 Applications aere ERREUR REN RUE HENRI URN EGE 8 Approvals and BET m S 9 21 Product Approvals RP ERA USER REO RR Pha Mr dee pane alam E 9 2 1 1 USA Federal Communications Commission FCC rer 9 2 1 1 1 FCC Labeling Requirements i eiieeii trees ite ei 9 21 1 2 End User Manual trente tette een 10 2 1 1 3 deni 10 212 Canada Industry Canada IC rettet enti tee tradere eoe pe et pedi oti curdvaredsndt or 10 21 2 1 IC Labeling Requirements ss 12 2 1 2 2 RE EXPOSE E 13 2 1 3 Europe Conformit Europ enne GS x cassacsvensesscnseiaauausosineeau
12. ETTE Ena Product ORNE Broadcom s BCM20737 transceiver 2 2 Potential Interference Sources The radio modules operate in the unlicensed ISM band in which there are many other applications e g WLAN Classic Bluetooth and microwave ovens This can cause interference that may in certain conditions prohibit radio communication Some of the most common interferences are listed below 2 2 1 WLAN Wireless Local Area Networks WLANs are divided into a number of overlapping channels Figure 3 below shows the channels used by WLAN for the US and Canada only channels 1 13 may be used Predominantly channels 1 6 and 11 are used to achieve non overlapping channels The user is therefore encouraged to select a channel scheme that also has channels falling in between or entirely outside WLAN channels Using a detection scheme clear channel assessment will enable the user to find channels with minimal interference from WLAN devices 1 2 3 4 5 6 T 8 9 10 11 12 13 14 Channel 2412 2 417 2 422 2 427 2 432 2 437 2442 2447 2452 2457 2 462 2 467 2 472 2 484 Center Frequency ETE else asas esl En D poenget auaa Figure 3 WLAN channels 2 2 2 Classic Bluetooth Classic Bluetooth divides the 2 402 2 480 GHz band into 79 channels each of which is 1MHz wide However since Bluetooth changes channels rapidly up to 1600 times a second it is unlikely to cause continuous interference in a specific channel and can be overcome by implemen
13. England P07 7SG Suzhou 215122 PR China 1 800 411 6596 Tel 44 2392 232392 Tel 86 512 6274 9282 Fax 1 315 432 8970 Fax 44 2392 251369 Fax 86 512 6274 9283
14. a IC The A20737x modules have been certified for use in Canada under Industry Canada IC Radio Standards Specification RSS RSS 210 and RSS Gen From section 3 2 RSS Gen Issue 3 December 2010 Modular Approval for Category Equipment or Category II Equipment Modular approval permits the installation of the same module in a host device or multiple host devices without the need to recertify the device Equipment certification for a modular device may be sought for either Category equipment or Category II equipment Anaren Integrated Radio AIR A20737x User s Manual Page 11 of 34 Release Date 01 16 15 Transmitters designed as modules for the installation in a host device may obtain equipment certification as a modular device provided that the applicable RSS is met and the following conditions in this section are met In section 7 1 2 Transmitter Antenna it has been mentioned that the user manuals for transmitters shall display the following notice in a conspicuous location Notice Under Industry Canada regulations this radio transmitter may only operate using 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 e i r p is not more than that necessary for successful communication Avis Sous la r glementa
15. able 1 for a list of approved antennas Anaren Integrated Radio AIR Page 6 of 34 A20737x User s Manual Release Date 01 16 15 1 3 Features Features Benefits Summary e 2 4 GHz Bluetooth Smart technology e 100 RF tested in production for e 1 7 to 3 6 V operation repeatable performance e Operating temperature 30 C to 85 C e Minimal RF engineering experience e Integrated ARM Cortex M3 necessary microprocessor core 512 Kbit EEPROM Programmable output power control up to 3dBm Low current consumption 25 mA in RX and 20mA 3 dBm Typical sleep current is 2 3 3V Excellent receiver sensitivity 94 dBm average with lt 1 BER Infrared modulator 10 Bit auxiliary ADC with nine analog channels Support for secure OTA Integrated LDO Supports SPI I C PWM UART and GPIO peripheral interface protocols RoHS compliant Shielded package LGA footprint Very small package size 11mm x 13mm x 2 5mm Approximate weight 0 5 grams Minimal Bluetooth Smart experience necessary Only requires a 2 layer Host PCB implementation FCC 15 247 IC RSS 210 and IC RSS Gen certified Compliant with ETSI EN 300 328 No regulatory Intentional radiator testing required for integrating module into end product Simple certification labeling replaces testing 1 4 Theory of Operation The A20737x modules operate in the global 2 4 GHz ISM SRD frequency band They can be used to implement a variety of networks in
16. ation avec cet appareil num ro d article R f rence Fabricant cat gorie Gain Integral part of A20737A Integral Antenna Partie int grante de ae int gr e A20737A 66089 2406 Anaren Antenne monop le longueur 6 mm 2 1 Monopole whip 30 mm lead 3 66089 2430 Anaren Antenne monop le longueur 30 mm Anaren Integrated Radio AIR Page 12 of 34 A20737x User s Manual Release Date 01 16 15 2 1 2 1 IC Labeling Requirements From section 3 2 1 RSS Gen Issue 3 December 2010 Labeling Requirements for the Host Device The host device shall be properly labeled to identify the modules within the host device The Industry 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 Industry Canada certification number of the module preceded by the words Contains transmitter module or the word Contains or similar wording expressing the same meaning From section 5 2 RSS Gen Issue 3 December 2010 Equipment Certification Numbers and Labels Every unit of Category radio apparatus certified for marketing and use in Canada shall bear a permanent label on which is indelibly displayed the model number and Industry Canada certification number of the equipment model transmitter receiver or inseparable combination thereof Each model shall be identified by a unique combination of a mode
17. cate 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 connected Consult the dealer or an experienced radio TV technician for help 2 1 1 3 RF Exposure All transmitters regulated by FCC must comply with RF exposure requirements OET Bulletin 65 Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields provides assistance 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 The bulletin offers guidelines and suggestions for evaluating compliance If appropriate compliance with exposure guidelines for mobile and unlicensed devices can be accomplished by the use of warning labels and by providing users with information concerning minimum separation distances from transmitting structures and proper installation of antennas The following statement must be included as a CAUTION statement in manuals and OEM products to alert users of FCC RF Exposure compliance To satisfy FCC requirements the antenna used with this transmitter must not be co located or operating in conjunction with any other antenna or transmitter except as permitted by FCC multi transmitter procedures 2 1 2 Canada Industry Canad
18. cluding point to point point to multi point Figure 1 and Figure 2 show the functionality of A20737A and A20737C respectively Both modules operate in a similar manner except with respect to the antenna in that the A20737A module communicates through a built in antenna whereas the A20737C communicates through an external antenna attached to a U FL connector Anaren Integrated Radio AIR A20737x User s Manual Page 7 of 34 Release Date 01 16 15 BCM20737 2400 2483 5 MHz UART GPIOs I C SPI Figure 1 The functionality of the A20737A using an internal antenna BCM20737 2400 2483 5 MHz MATCHING UART GPIOs I C SPI Figure 2 The functionality of the A20737C using an external antenna Anaren Integrated Radio AIR Page 8 of 34 A20737x User s Manual Release Date 01 16 15 The description of the functional blocks shown in Figure 1 and Figure 2 is given as follows e Antenna o The antenna couples energy between the air and the module The integral antenna and the external monopole antenna both centered at 2441 75 MHz provide a near omni directional antenna pattern with high efficiency such that the application will work in any direction The end radiation pattern of the antenna depends on the ground plane enclosure and installation environment e Matching amp Filtering o Matching provides the correct loading of the transmit amplifier to achieve the highest output power as wel
19. ive device Precaution should be used when handling the device in order to prevent permanent damage Caution This assembly contains moisture sensitive devices and requires proper handling per IPC JEDEC J STD 033 Table 4 Absolute Maximum Ratings Parameter Min Max Unit Condition Note Supply Voltage VDD_IN 0 3 3 8 V Supply Voltage VDD_RF 0 3 1 4 V Voltage on any Digital Pin 0 3 VDD_IN 0 3 V RF Input Power 10 dBm Storage Temperature 40 125 C Solder Reflow 260 According to IPC JEDEC J STD Temperature 020D ESD 4 4 kV According to JEDEC STD 22 method A114 Human body model Anaren Integrated Radio AIR Page 20 of 34 A20737x User s Manual Release Date 01 16 15 3 2 Operating Conditions Table 5 Operating conditions Parameter Min Max Unit Condition Note Supply Voltage VDD_IN 1 7 3 6 V Supply Voltage VDD RF 1 14 1 26 V Temperature Range 30 85 C 3 3 Pin Out The A20737A and A20737C AIR modules share a common pin out and foot print thus enabling the use of the same application PCB layout for both Below the pin out is shown RO RTS Po oe A REN Where applicable GND 9 os VERS C GND NC No Connection Pin is DNC 2907 RF NOT connected internally GND 23 28 LDO OUT 3 2 NC 4 a A VDD IN DNC Do Not Connect Pin ie 2 ES A reserved for internal use
20. ject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device Avis Cet appareil est conforme avec Industrie Canada RSS standard exempts de licence s Son fonctionnement est soumis aux deux conditions suivantes 1 cet appareil ne peut pas provoquer d interf rences et 2 cet appareil doit accepter toute interf rence y compris les interf rences qui peuvent causer un mauvais fonctionnement du dispositif From section 7 1 4 RSS Gen Issue 3 December 2010 Radio Apparatus Containing Digital Circuits ICES 003 Radio apparatus containing digital circuitry which can function separately from the operation of a transmitter or an associated transmitter shall comply with ICES 003 In such cases the labeling requirements of the applicable RSS apply rather than the labelling requirements in ICES 003 For more information see Industry Canada http www ic gc ca 2 1 2 2 RF Exposure All transmitters regulated by IC must comply with RF exposure limits as set forth in RSS 102 Issue 4 Section 4 Exposure Limits Furthermore RSS 102 Issue 4 Section 2 Certification Requirements provides assistance in determining the specific requirements for compliance If appropriate compliance with exposure guidelines for mobile and unlicensed devices can be accomplished by the use of warning labels and by
21. l as the correct loading for the receive LNA to achieve the best sensitivity o Filtering removes spurious signals to comply with regulatory requirements provides reduced susceptibility to power supply and digital noise and filters out RF and high frequency noise from the communication data and control link e TX RX Chain o The TX RX chain handles transmitting and receiving of the communication data based on the radio register settings It involves the coordination of several blocks including modulator demodulator AGC control frequency synthesizer and frame control e Crystal o The crystal oscillator provides the necessary clock reference for the whole module operation The A20737x modules use a 24 MHz crystal e Power Management o Power management ensures a stable supply for the internal functions as well as providing means for a low power sleep mode Table 1 Approved Antennas Item Part Number Manufacturer Type Gain dBi 1 Integral part of A20737A Anaren Integral Antenna 2 2 66089 2406 Anaren Monopole whip 6 mm lead 3 3 66089 2430 Anaren Monopole whip 30 mm lead 3 1 5 Applications Bluetooth Smart Systems Industrial Control and Monitoring Home Building Automation Lighting Systems Low Power Wireless Sensor Networks Sports monitoring health amp wellness Anaren Integrated Radio AIR A20737x User s Manual Page 9 of 34 Release Date 01 16 15 2 Approvals and Usage The
22. l number and a certification number which are assigned as described below in this section The label shall be securely affixed to a permanently attached part of the device in a location where it is visible or easily accessible to the user and shall not be readily detachable The label shall be sufficiently durable to remain fully legible and intact on the device in all normal conditions of use throughout the device s expected lifetime These requirements may be met either by a separate label or nameplate permanently attached to the device or by permanently imprinting or impressing the label directly onto the device The label text shall be legible without the aid of magnification but is not required to be larger than 8 point font size If the device is too small to meet this condition the label information may be included in the user manual upon agreement with Industry Canada Section 5 2 continues The model number is assigned by the applicant and shall be unique to each model of radio apparatus under that applicant s responsibility The model number shall be displayed on the label preceded by the text Model so it appears as follows Model model number assigned by applicant Anaren Integrated Radio AIR A20737x User s Manual Page 13 of 34 Release Date 01 16 15 Label Contains Contient IC 8975A A14070701 Notice This device complies with Industry Canada licence exempt RSS standard s Operation is sub
23. label referring to the enclosed module This exterior label can use wording such as the following Contains Transmitter Module FCC ID X7J A14070701 or Contains FCC ID X7J A14070701 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 Anaren Integrated Radio AIR Page 10 of 34 A20737x User s Manual Release Date 01 16 15 2 1 1 2 End User Manual The end user manual should include the following statement 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 equipment generates uses and can radiate radio frequency 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 following measures Reorient or relo
24. ons to the module and or operation outside the limits are prohibited and could void the user s authority to operate the modules 2 3 1 US and Canada Within the US and Canada the A20737x modules have been approved for use as digitally modulated transmitters for which they conform to the BW a minimum of 500 kHz 6 dB BW for US a maximum BW of 0 5 of the carrier frequency for Canada power spectral density max of 8 dBm 3 kHz total output power max of 1W including the antenna gain and spurious radiation harmonics and others including the restricted bands requirements Table 2 shows approved frequencies of operations with the corresponding maximum output power values These modules must be operated at or below the indicated power levels Using the modules with higher power levels are prohibited and will void the user s authority to operate the modules under current FCC IC certification Table 3 shows available power levels from the device Users are encouraged to use minimum power required to establish a link thus minimizing interference and current consumption Anaren Integrated Radio AIR A20737x User s Manual Release Date 01 16 15 Page 17 of 34 Table 2 Approved Power Levels for FCC IC and ETSI Approved Frequencies MHz Max Output Power dBm A20737A 2402 2480 3 A20737C 2402 2480 3 Table 3 A20737x module available power levels and typical current consumptions
25. onverter input P13 GPIO P13 PWM3 P28 GPIO P28 LED1 IR_TX PWM2 Current 16 mA 29 Anaren Integrated Radio AIR Page 24 of 34 A20737x User s Manual Release Date 01 16 15 Pin dd BCM20737 Number Pin Name Pin Type Pin Description amp Alternate Functions PIN P12 GPIO P12 A D converter input Low power oscillator LPO output P12 P26 Digital P26 XO32 1 0 GPIO P26 PWMO SPI_2 SPI_CS slave only SPI 1 MISO master only Current 16 mA P11 GPIO P11 A D converter input Low power oscillator LPO input P27 GPIO P27 PWM1 SPI 2 MOSI master and slave Current 16 mA P11 P27 XIN32 VDD IN I O pad and core supply 1 7 3 6V LDO OUT LDO Output 1 2V VDD RF RF front end supply 1 14 1 26V Anaren Integrated Radio AIR A20737x User s Manual Page 25 of 34 Release Date 01 16 15 3 4 Recommended Layout dimensions in mm C EB C C C L L jJ L 8 05 L 0 256 EM BBDIDUDUDDE 7 1 35 Lo 9 90 8 Figure 5 Recommended PCB footprint Anaren Integrated Radio AIR Page 26 of 34 A20737x User s Manual Release Date 01 16 15 12 00 mm min No GND Plane No GND Plane PCB Edge Edge GND Plane Figure 6 Mounting the module in a corner Figure 7 Mo
26. re process compatibility up to and including the stated classification temperature at the rated MSL level Anaren Integrated Radio AIR Page 32 of 34 A20737x User s Manual Release Date 01 16 15 DOCUMENT HISTORY Date Author Change Note No Notes 09 19 14 Sula Initial Draft 11 18 14 Sula Some formatting and minor changes Added Bluetooth declaration ID updated ua module footprint Updated ETSI information and corrected some 12 16 14 Subramanian more mistakes 01 16 15 Sula Some formatting and minor changes The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of such marks by Anaren Inc is under license Other trademarks and trade names are those of their respective owners Anaren Integrated Radio AIR THIS PAGE INTENTIONALLY LEFT BLANK If you have additional questions need samples or would like a quote please email the AIR team at AlIR anaren com For a full list of our franchised distributors please visit our website http www anaren com air D Anaren Anaren What ll we think of next Integrated Radio Anaren Microwave Inc Anaren Microwave Europe Inc Anaren Communication Suzhou Co Ltd 6635 Kirkville Road 12 Somerset House Suite 16 amp 17 Bldg 3 No 1 LongHui Street East Syracuse NY 13057 Hussar Court Waterlooville Suzhou Industrial Park Tel 1 315 432 8909 Hampshire
27. sagtrieraieebaananaeonetsauaacearsenannnanart 14 2 14 Bluetooth Special Interest Group SIG 15 22 _ Potential Interference Sources etate a Re annees 15 22 15 JINAN evt attendite te endorse ds 15 22 2 Classic Bluetooth ene guts tennis 15 2 2 3 Microwave c D 16 228 Other Interference aner nenn N ES 16 2 9 Approved RON EA C tH Ree tt 16 231 US ANE CANAAG mM E 16 23 5 MER 17 22 3 BUCOM NU ETE 17 Bl ctrical Characteristics sens nn ee tet te reta ren un e Ugo lett re en ER e 19 S l Absolute Maximum cn a nd eet M era tH Rege eee ave Po MR ue 19 9 2 Operating Conditions nei oet ertet tip nti E Fee UADIT I IE RUE pee indie tone RO ee 20 CENE M 20 3 4 Recommended Layout dimensions in MM sis 25 3 5 Power Supply Considerations sn 26 Mechanical and ProCeSS T eisite EAEE A ei E Ei t 27 41 Radio Mod le D tails erepti E EE E E E as 27 CENE T E T E E E E E TA E EE 27 412 A2077 ette ep ibus arem A ne EAT TOE 27 4 2 Packaging Details dimensions in MM 28 421 Matrix Tray Packaging eicere reete rien rete eH re diea dedo e ee e Fine arb A otio 28 42 2 lape Reel Packaging sace neta ap O AER
28. stes may also be used CAUTION AIR Modules are designed for no clean fluxes only DO NOT use water based fluxes that require aqueous cleaning after solder Spot cleaning with a flux remover and toothbrush may be performed with care 4 3 1 Manual Mounting Procedure The recommended soldering method is reflowing of a paste solder on a hot plate This method works provided the bottom of the board where the AIR module is to be mounted is accessible and there are no bottom side components in the way An aluminum or copper block may be placed on the hot plate surface to transfer heat to a localized area on the board where the AIR module is mounted Set the hot plate to the reflow temperature solder manufacturer s recommended Apply solder paste to the pads on the board receiving the AIR module Place the AIR module carefully onto the dispensed solder Using tweezers or another holding device carefully place board with AIR module onto the hot plate surface or metal block Apply heat until reflow occurs per solder paste manufacturer s recommendations Carefully remove the board and place on a heat resistant surface to cool Check assembly electrically to confirm there are no open or short circuits Anaren Integrated Radio AIR Page 30 of 34 A20737x User s Manual Release Date 01 16 15 4 3 2 Automated Mounting Procedure The AIR module recommended solder reflow profile is based on IPC JEDEC J STD 020 Table 5
29. ting a simple acknowledge retransmit functionality Anaren Integrated Radio AIR Page 16 of 34 A20737x User s Manual Release Date 01 16 15 2 2 3 Microwave Ovens A typical microwave oven uses a self oscillating magnetron with a duty cycle below 50 because the tube is completely off for half of every AC mains cycle 8 33 ms in 60 Hz countries and 10 ms in 50 Hz countries The frequency of the microwave oven changes cyclically within each AC mains synchronized on period and is generally not predictable The user is encouraged to have packet transmission durations less than half the AC mains period and implement an acknowledge retransmit method 2 2 4 Other Interference Systems similar to the user s system may also exist within range and may also be a source of interference some typical applications to consider are e Alarm systems These typically use low duty cycles and are therefore easy to avoid using acknowledge retransmit methods e Car alarms internal motion sensors e Video surveillance These are operated on a fixed channel determined at installation time and can be avoided by using clear channel assessment It may be useful to change the channel used by the video surveillance equipment 2 3 Approved Usage The A20737x modules have been approved for use in the US Canada and Europe The user is encouraged to use minimum power required to establish a link thus minimizing interference Changes or modificati
30. tion d Industrie Canada ce transmetteur radio ne peut fonctionner qu en utilisant seulement une antenne d un type et d un maximum ou moins de gain approuv pour l metteur par Industrie Canada Pour r duire des potentielles interf rences radio pour les autres utilisateurs le type d antenne et son gain doivent tre choisis de sorte que la puissance isotrope rayonn e quivalente PIRE ne d passe pas ce qui est n cessaire pour une communication r ussie In section 7 1 2 Transmitter Antenna it states that the user manuals for transmitters equipped with detachable antennas shall also contain the following notice in a conspicuous location Notice This radio transmitter IC 8975A A14070701 has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Avis Cet metteur radio IC 8975A A14070701 a t approuv par Industrie Canada pour fonctionner avec les types d antennes num r s ci dessous avec le gain maximal admissible et l mp dance d antenne requise pour chaque type d antenne indiqu Les types d antennes ne figurant pas dans cette liste ayant un gain sup rieur au gain maximal indiqu pour ce type sont strictement interdits pour l utilis
31. unity ETSI EN 301 489 17 gt RF Exposure ETSI EN 62311 2008 Safety IEC 60950 1 2005 and EN 60950 1 2006 A helpful document that can be 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 downloadable from the European Radio Communications Office ERO http Awww erodocdb dk Docs doc98 official pdf REC7003E PDF The end user is responsible for ensuring compliance with harmonized frequencies and labeling requirements for each country the end device is marketed and sold For more information see e Radio And Telecommunications Terminal Equipment R amp TTE http ec europa eu enterprise sectors rtte index en htm e European Conference of Postal and Telecommunications Administrations CEPT http Awww cept org e European Telecommunications Standards Institute ETSI http www etsi org e European Communications Office ECO http www cept org eco Anaren Integrated Radio AIR A20737x User s Manual Page 15 of 34 Release Date 01 16 15 2 1 4 Bluetooth Special Interest Group SIG The A220737A and A20737C modules have been certified and listed as Bluetooth Smart devices under the following categories Model Declaration Ma Number YP ID Anaren AIR module with an embedded antenna EA Pranati based Broadcom s 20737 transceiver Anaren AIR module with a U FL connector based on B
32. unting the module along an edge No GND area is optional for A20737C modules It may still be provided for compatibility with the internal antenna version A20737A 3 5 Power Supply Considerations Noise on the power supply line reduces the sensitivity of a receiver and can modulate onto a transmitters signal both of which causes a degradation of link quality and hence a reduction in range The A20737x modules have integral noise reduction from power supply to the internal biasing pins consisting of ferrite beads and decoupling capacitances This arrangement will take care of most supply voltage noise For optimal performance in particular noisy environments switching regulators motor controls etc it may be necessary to add additional noise reduction means which can consist of a low noise LDO or additional LC filtering Note that if operated from a battery source there is no need for additional noise reduction The A20737x modules have internal LDO which provides 1 2V voltage The output of this LDO is brought out to pin 28 Also a separate input voltage pin pin 29 is provided for convenience to customers who wish to supply 1 2V to the RF circuitry externally In case this option is not desired pin28 and pin29 should be tied together to power the RF circuitry Anaren Integrated Radio AIR A20737x User s Manual Page 27 of 34 Release Date 01 16 15 4 Mechanical and Process 4 1 Radio Module Details 4 1 1 A20
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