2AZYO-TPL3936Bluetooth module

TPL3936 Dual Module Datasheet 版本：V1.0 版权：©2021 TPL3936 Dual Module Datasheet 一、Introduction 二、Module Parameters 三、Module Size 四、Pin Definition 五、Reference Design 六、Hardware Design Considerations 1、Module placement requirements on the bottom plate 2、power supply requirements 3、UART Communication 七、Reflow Profile ItemParameters Module NameTPL3936 PackageSMT（Stamp Hole） Size11.20x15.06 (±0.2)MM Voltage Range3.5V~5.5V，Recommend 5V Wireless StandardBluetooth 5.0 Frequency Range2400~2483.5MHz Output Power5dBm Sensitivity-92dBm Default Communication interfaceUART FLASH Size4Mbit RAM Size32KB GPIO Number10 Work Temperature-20°C~+75°C Storage Temperature-20°C~+75°C 一、Introduction TPL3936 is a BLE 5.0 dual mode Bluetooth module with a built-in Bluetooth protocol stack, which can be used for short distance music transmission and can be easily connected to Bluetooth devices such as mobile phones to achieve wireless music transmission. And synchronization can support data transmission function, which can be widely used in various application scenarios that require both audio transmission and data transmission。 The other main features of the module are as follows: 32KB SRAM Built in 4Mbit flash, 48KB SRAM Support various profiles such as A2DP, BLE, AVRCP, HFP, SPP, HID, etc Support low power Bluetooth data transparent transmission Support AT command control Ultra small package 二、Module Parameters 三、Module Size 四、Pin Definition 序 号 名称管脚功能备注 1USBDM USB Data Minus USB_D-Debug Port 2USBDP USB Data Positive USB_D+Debug Port 3UART_RXDigital I/O Communication serial port RXD 4UART_TXDigital I/O Communication serial port TXD 5PA4Digital I/O Multiplexing LineIn Right Channel Input DC isolation capacitor 6PA3Digital I/O Multiplexing LineIn left channel Input DC isolation capacitor 7PA2Digital I/OLineIn input controlLow level enable LineIn mode 8AGNDAGNDAnalog ground Connect to the power amplifier BYPASS and then connect to GND 9DACL Audio output Left channel outputAudio output port 10DACR Audio output Right channel outputAudio output port 11GNDGND 12VCCPower 3.5V~5.5V， Recommend 5V 5V power supply, capable of connecting a 10R resistor in series with the power supply 13PB3Digital I/O 14MUTE-Digital I/O Power amplifier off control low effective Pull down the amplifier to mute 15MUTE+Digital I/O Power amplifier shutdown control highly effective Raise the power amplifier to mute 16RESETresetreset 五、Reference Design 六、Hardware Design Considerations 1、Module placement requirements on the bottom plate (1) In order to meet the performance of the antenna on board, it is forbidden to place metal parts around the antenna, away from high frequency devices.Avoid using metal in the product housing and keep metal screw inside away from the RF part of the module. (2) Pay attention to the layout of the module on the soleplate, and minimize the impact of the soleplate on the performance of the module PCB antenna. The following are suggested: Option 1: Place the module at the edge of the motherboard and the antenna area extends beyond the edge of the motherboard. Option 2: Place the module at the edge of the motherboard, which empties an area at the antenna position. Option 3: If the above scheme is limited and cannot be implemented, make sure that the area of the module PCB antenna and the area of 5 mm extension need to be cleared (copper, wiring and placement of components are strictly prohibited). 2、power supply requirements (1) It is recommended to use DC regulator power supply to supply power to the module. The power ripple factor is as small as possible and the module needs to be grounded reliably. Please note that the correct connection between the positive and negative poles of the power supply, such as reverse connection may cause permanent damage to the module. (2) Check the power supply to ensure that between the recommended supply voltage, if the maximum value is exceeded, the module will be permanently damaged; check the power supply stability, the voltage should not fluctuate significantly and frequently; (3) Recommend 3.3V voltage, LDO power supply is recommended; if using DC-DC, ripple control is recommended within 30mV.The DC-DC power supply circuit suggests reserving the position of the dynamic response capacitance to optimize the output ripple when the load varies greatly. 3、UART Communication UART communication between module and master MCU through serial port supports full duplex transmission and reception of TX and RX. 七、Reflow Profile FCC Statement FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Integral antenna with antenna gain 3 dBi 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: 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 relocate the receiving antenna. —Increase the separation between the equipment and receiver. — Connect the equipment into an outlet on a circuit dif…

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Shanghai TopyTechnologyCo.,Ltd U.S. Agent Designation for Service of Process - Certification Attestation Letter 5/4/2023 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2AZYO-TPL3936 FRN of applicant: 0030943757 Company Name: Baihetian Innovative Solutions FRN: 0033401605 Contact Name: Kenneth Young Street Address: 6837 Chase Rd City/Province/Zip: Dearborn, MI 48126 Telephone No: 313-395-3113 Per section 2.911(d)(7) of the FCC rules,Shanghai TopyTechnologyCo.,Ltd](“the applicant”) certi fies that the equipment for which authorization is sought is designated to the following U.S. agent Baihetian Innovative Solutions for service of process: Email: [email protected] The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed: Signed: Printed name: Linly LIn Title: Manager Company Name: Shanghai TopyTechnologyCo.,Ltd Date: 2023/4/28 Agent Signed (if different from Applicant): Signed: Printed name: Kenneth Young Title: Manager Date: 5/4/2023 * the applicant must designate a contact located in the United States for purposes of acting as the applica nt’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process.

DATE:2023/4/28 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointBlueAsiaofTechnicalServices(Shenzhen)Co.,LtdAnd BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict,Shenzhen, GuangdongProvince,China(NameofAgentcompanynameandaddress)toactasour agentinthepreparationofthisapplicationforequipmentcertification.Icertifythat submitteddocumentsproperlydescribethedeviceorsystemforwhichequipment certificationissought.Ialsocertifythateachunitmanufactured,importedormarketed,as definedintheFederalCommunicationsCommission’sregulationswillhaveaffixedtoita labelidenticaltothatsubmittedforapprovalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithShanghaiTopyTechnologyCo.,LtdAndBuildingC, No.888HuanhuWest2ndRoad,LingangNewArea,PudongNewAreaShanghaiChina (ApplicantNameandaddress) <Signature> Name：LinlyLIn Title：Manager Company ： ShanghaiTopyTechnologyCo.,Ltd

DATE2023/4/28 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2AZYO-TPL3936__ ProductName:_Bluetoothmodule___ RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommission’srules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...) Schematics Blockdiagram  Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. <Signature> Name：LinlyLIn Title：Manager Company：ShanghaiTopyTechnologyCo.,Ltd

Compliance list INTEGRATION INSTRUCTIONS for 996369 D03 OEM the and 996369 D03 OEM by Sections 2.2 through 2.10. Requirement Yes N/A Comment 2.2 List of applicable FCC rules List the FCC rules that are applicable to the modular transmitter. These are the rules that specifically establish the bands of operation, the power, spurious emissions, and operating fundamental frequencies. DO NOT list compliance to unintentional-radiator rules (Part 15 Subpart B) since that is not a condition of a module grant that is extended to a host manufacturer. See also Section 2.10 below concerning the need to notify host manufacturers that further testing is required.3 YES Refer to instruction FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 2.3 Summarize the specific operational use conditions Describe use conditions that are applicable to the modular transmitter, including for example any limits on antennas, etc. For example, if point-to-point antennas are used that require reduction in power or compensation for cable loss, then this information must be in the instructions. If the use condition limitations extend to professional users, then instructions must state that this information also extends to the host manufacturer’s instruction manual. In addition, certain information may also be needed, such as peak gain per frequency band and minimum gain, specifically for master devices in 5 GHz DFS bands. YES Refer to instruction Integral antenna with antenna gain 3 dBi 2.4 Limited module procedures If a modular transmitter is approved as a “limited module,” then the module manufacturer is responsible for approving the host environment that the limited module is used with. The manufacturer of a limited module must describe, both in the filing and in the installation instructions, the alternative means that the limited module manufacturer uses to verify that the host meets the necessary requirements to satisfy the module limiting conditions. A limited module manufacturer has the flexibility to define its alternative method to address the conditions that limit the initial approval, such as: shielding, minimum N/A Not applicable signaling amplitude, buffered modulation/data inputs, or power supply regulation. The alternative method could include that the limited module manufacturer reviews detailed test data or host designs prior to giving the host manufacturer approval. This limited module procedure is also applicable for RF exposure evaluation when it is necessary to demonstrate compliance in a specific host. The module manufacturer must state how control of the product into which the modular transmitter will be installed will be maintained such that full compliance of the product is always ensured. For additional hosts other than the specific host originally granted with a limited module, a Class II permissive change is required on the module grant to register the additional host as a specific host also approved with the module. 2.5 Trace antenna designs For a modular transmitter with trace antenna designs, see the guidance in Question 11 of KDB Publication 996369 D02 FAQ – Modules for Micro-Strip Antennas and traces. The integration information shall include for the TCB review the integration instructions for the following aspects: layout of trace design, parts list (BOM), antenna, connectors, and isolation requirements.4 a) Information that includes permitted variances (e.g., trace boundary limits, thickness, length, width, shape(s), dielectric constant, and impedance as applicable for each type of antenna); b) Each design shall be considered a different type (e.g., antenna length in multiple(s) of frequency, the wavelength, and antenna shape (traces in phase) can affect antenna gain and must be considered); c) The parameters shall be provided in a manner permitting host manufacturers to design the printed circuit (PC) board layout; d) Appropriate parts by manufacturer and specifications; e) Test procedures for design verification; and f) Production test procedures for ensuring N/A Not applicable compliance. The module grantee shall provide a notice that any deviation(s) from the defined parameters of the antenna trace, as described by the instructions, require that the host product manufacturer must notify the module grantee that they wish to change the antenna trace design. In this case, a Class II permissive change application is required to be filed by the grantee, or the host manufacturer can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application. 2.6 RF exposure considerations It is essential for module grantees to clearly and explicitly state the RF exposure conditions that permit a host product manufacturer to use the module. Two types of instructions are required for RF exposure information: (1) to the host product manufacturer, to define the application conditions (mobile, portable – xx cm from a person’s body); and (2) additional text needed for the host product manufacturer to provide to end users in their end-product manuals. If RF exposure statements and use conditions are not provided, then the host product manufacturer is required to take responsibility of the module through a change in FCC ID (new application). YES Refer to instruction This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 2.7 Antennas A list of antennas included in the application for certification must be provided in the instructions. For modular transmitters approved as limited modules, all applicable professional installer instructions must be included as part of the information to the host product manufacturer. The antenna list shall also identify the antenna types (monopole, PIFA, dipole, etc. (note that for example an “omni-directional antenna” is not considered to be a spec…

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Single Modular approval Declaration letter We, Shanghai Topy TechnologyCo.,Ltd. applies single modular approval for Product Name: Bluetooth module Model: TPL3936 FCC ID: 2AZYO-TPL3936 According to 996369 D01 Module Equip Auth Guide v01r04 and 15.212 requirement: 1)The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly; Answer: Yes; Shielded . 2)The module must have buffered modulation/data inputs to ensure that the device willcomply with Part 15 requirements with any type of input signal; Answer: Yes; All inputs to the modules are buffered through logic or microprocessor inputs. 3)The modular transmitter must have its own power supply regulation. Answer: Yes; A low drop out regulator is used for modular power supply regulation. 4)The module must contain a permanently attached antenna, or contain a unique antennaconnector, and be marketed and operated only with specific antenna(s), per Sections15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b); Answer: Yes; Device is equipped with PCB antenna. (5)The module must demonstrate compliance in a stand-alone configuration; Answer: Yes;distance between modular and all AEs are bigger than 10cm, refer to setup photo. (6)The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labeling requirements); Answer: Yes; The modular has a permanent fixed label, and below statement was listed in the User Manual; The host device must be labeled to display the FCC ID of the module “Contains FCC ID: 2AZYO-TPL3936” (7)The module must comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee; Answer: Yes; The module comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee, Refer to test report and user manual . (8)The module must comply with RF exposure requirements Answer: Yes; Transmitter meets MPE calculation of 47 CFR 1.1307 . Refer to MPE Reports and Refer to modular installation manual. Please contact me if you have any further questions. Thanks for your attention. Best Regards, <Signature> Title: Manager Company: Shanghai TopyTechnologyCo.,Ltd

ProductName: Bluetoothmodule

ProductName: Bluetoothmodule

RFExposureevaluation ProductName: Bluetoothmodule FCCID: 2AZYO-TPL3936 TestStandard: KDB447498D04GeneralRFExposureGuidance v01 Accordingto447498D04InterimGeneralRFExposureGuidancev01 Ant gain = 3 dBi MAX output power ：-1.658dBm@2402MHzBLE ERP=-1.658+3-2.15=-0.808dBm WORSE CASE: 10^-0.0808dBm =0.830mW < 2.715 mW Ant gain = 3 dBi MAX output power ：-0.092dBm@2402MHzBT ERP=-0.092+3-2.15=0.758dBm WORSE CASE: 10^0.0758dBm =1.191mW < 2.715 mW Then SAR evaluation is not required

Page 1 of 62 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd. Add:BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict,Shenzhen,GuangdongProvince,China Tel:+86-755-23059481Email:[email protected] TESTREPORT ProductName: Bluetoothmodule BrandMark: Topylink ModelNo.: TPL3936 ReportNumber: BLA-EMC-202303-A1202 FCCID: 2AZYO-TPL3936 DateofSampleReceipt: 2023/3/3 DateofTest: 2023/3/3to2023/3/14 DateofIssue: 2023/3/14 TestStandard: 47CFRPart15,SubpartC15.247 TestResult:Pass Preparedfor: ShanghaiTopyTechnologyCo.,Ltd BuildingC,No.888HuanhuWest2ndRoad,LingangNewArea,PudongNewArea, Shanghai,China Preparedby: BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd. BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict, Shenzhen,GuangdongProvince,China TEL:+86-755-23059481 Compiledby:Reviewby: Approvedby:Date:2023/3/14 ReportNo.:BLA-EMC-202303-A1202 Page 2 of 62 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] REPORTREVISERECORD VersionNo.DateDescription 002023/3/14Original ReportNo.:BLA-EMC-202303-A1202 Page 3 of 62 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] TABLEOFCONTENTS 1TESTSUMMARY........................................................................................................................................5 2GENERALINFORMATION.........................................................................................................................6 3GENERALDESCRIPTIONOFE.U.T..........................................................................................................6 4TESTENVIRONMENT................................................................................................................................7 5TESTMODE................................................................................................................................................7 6MEASUREMENTUNCERTAINTY..............................................................................................................7 7DESCRIPTIONOFSUPPORTUNIT..........................................................................................................8 8LABORATORYLOCATION.........................................................................................................................8 9TESTINSTRUMENTSLIST........................................................................................................................9 10CONDUCTEDEMISSIONSATACPOWERLINE(150KHZ-30MHZ).....................................................11 10.1LIMITS................................................................................................................................................................11 10.2BLOCKDIAGRAMOFTESTSETUP......................................................................................................................11 10.3PROCEDURE.......................................................................................................................................................11 10.4TESTDATA...........................................................................................................................................................13 11CONDUCTEDBANDEDGESMEASUREMENT.....................................................................................16 11.1LIMITS................................................................................................................................................................16 11.2BLOCKDIAGRAMOFTESTSETUP......................................................................................................................16 11.3TESTDATA...........................................................................................................................................................17 12RADIATEDSPURIOUSEMISSIONS........................................................................................................18 12.1LIMITS................................................................................................................................................................18 12.2BLOCKDIAGRAMOFTESTSETUP......................................................................................................................19 12.3PROCEDURE.......................................................................................................................................................19 12.4TESTDATA...........................................................................................................................................................21 13RADIATEDEMISSIONSWHICHFALLINTHERESTRICTEDBANDS.................................................30 13.1LIMITS................................................................................................................................................................30 13.2BLOCKDIAGRAMOFTESTSETUP......................................................................................................................31 13.3PROCEDURE.......................................................................................................................................................31 13.4TESTDATA...........................................................................................................................................................33 14CONDUCTEDSPURIOUSEMISSIONS...................................................................................................38 14.1LIMITS................................................................................................................................................................38 ReportNo.:BLA-EMC-202303-A1202 Page 4 of 62 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 14.2BLOCKDIAGRAMOFTESTSETUP............................................................................…

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TPL3936antenna Small Size 2.4 GHz PCB antenna 1 INTRODUCTION and considerations for complying with regulatory limits when using thi s design. The s uggested antenna design requires no more than 11 x 2.5 mm of space and ensures a VSWR ratio of less than 2 across the 2.4 GHz ISM band when connected to a 50 oh m source. The PCB antenna used on the TPL3936 reference design is described in this application note. Even if t he a ntenna presented is for a TPL3936 it can be used in a ll 2.4 GHz designs, especially where small s pace is required for the antenna. This application note describes the antenna dimensions, the RF performance Figure 1 : TPL3936 Manufacturer; producer: Huizhou Huaxingbo Electronic Co., LTD Manufacturer's address: Floor 4, Building 2, Jing 'an Industrial Park, Shenhu Village, Longxi Town, Boluo County, Huizhou City ANTENNA DESIGN The PCB antenna on the TPL3936 reference design is a meande「ed Inverted F Antenna (IFA). The IFA was designed to match an impedance of 50 ohm at 2.45 GHz. Thus no additional matching components are necessary. 2 Design Goals The reflection at the feed point of the antenna determines how much of the applied power is d elivered to the antenna. A reflection of less than -10 dB across the 2.4 GHz ISM band, when connected to a 50 ohm source, was a design goal. Reflection of less than斗O dB, or VSWR less than 2, ensures that more than 90% of the available power is delivered to the antenna. B andwidth is in this document defined as the f「equency band where mo「e than 90% of the available power is delivered to the antenna. Another design goal was to fit the size of the PCB antenna on a TPL3936 and to obtain good pe时ormance als o when the dongle is connected to a computer. 2.1 Simulation IE3D from Zeland, which is an electromagnetic simulation tool, was used to design the antenna. The accuracy of the simulation is controlled by the mesh. An increase of the mesh increases the simulation time. Thus, for initial simulations mesh = 1 should be used. When a fairly good result is achieved a higher mesh should be used to obtain more accurate results. Comparison of simulation and measurement results shows that the measured reflection is between the result obtained with mesh = 5 and mesh = 1 ; see Figure 2 for details. 2.2 -3 - 12 也 飞， - 21 -2 7 - 1 5 · 1 8 - 9 ...• Simulated mesh6 -Simulated mesh1 一 ···· ·＆T o －－， ．．．． ，，，， ．．．．．．．． 01· …－ Measured free s p ,oe 3 , ·24 · 。 -3 “ 6 - 9 - 1 2 国 飞， · 1 5 - 1 8 -2 7 - 21 -30 3 28 2 7 24 25 26 Froqu•ncy (GHz) 23 22 2. - 30 2 Figure 2: C。mparisonof Simulation and Measurements Results 2.3 Layout and Implementation Small changes of the antenna dimensions may have large impact on the performance. Therefore it is strongly recommended to make an exact copy of the reference design to achieve optimum pe斤。rmance. The easiest way to implement the antenna is to import the gerber or DXF file showing the antenna layout. The imported file can be used as a template when drawing the antenna. By using this procedure it should be possible to make an exact copy. If the PCB CAD tool being used does not suppo叫impo时of DXF or gerber files, Figu「e 3 and Table 1 should be used to ensure correct implementation. It is recommended to gene「ate a gerber file for compa「isοn with IFA_USB.spl when making a manual implementation. Most g erber viewers have the possibility to impo同several gerbe「 files at the same time. Thus by placing the gerber file, showing the manually implemented antenna, on top of IFA_USB.spl it is easy to ve「ify that the antenna is correctly implemented. It is also recommended to use the same thickness and type of PCB material as used in the reference design. Information about the PCB can be found in a separate readme file included in the reference design. To compensate for a thicker/thinner PCB the antenna could be made slightly shorter/longer. . W1 W2 Figure 3: Antenna Dimensions 3 TEST RESULTS Reflection, radiation pattern and variation of output power across a wide frequency band were mea sured to verify the pe斤ormance of the PCB antenna. Measurements of the dongle in f「ee space and when connected to a la ptop were performed to verify that the antenna is suitable both f o「 T PL3936 designs and in a s tandalone application. Free space is in this document interpreted a s a measurement pe斤。rmed without connecting the dongle to a computer. In such a measurement the dongle is only powered by a battery. 3 .1 Reflecti。n All the 「eflectionmeasurements were performed with a network analyzer connected to a semi-rigid coax cable, which was soldered to the feed point of the antenna. Because of the small size antenna and the small ground plane this kind of measurements is heavily affected by the presence and placement of the coax cable. This influence can「esult in a small uncertainty in resonance frequency and measured 「eflection.Typically different placement of the semi-rigid coax cable could change the resonance frequency with 5 -10 MHz and the reflection with 3 - 4 dB. Free space - 2 -4 叫 6 叫 B - 1 0 - 12 百 －14 - 1 6 - 1 8 - 2 0 ·22 I ” ·24 I· ·26 I 甲 - 2 8 2.1 T ．」－－－－ ’ I 2.2 啥－ 一－叫 τ T l 2.3 With。ut test pins 丁’””－ r 」－－ , With plastic I " ’ I τ ． ι I I " I －－－－－←－－ － － 一咆－ －一一一一一一 千 ＋ 一 ← ”’ ’1 ， τ 2.4 2 5 2.6 2. 7 2.8 Frequency (GHz) ' .,. .,. 丁 J」 " －一一一 叫卜 T T l 2.9 。 - 2 -4 而 - 8 - 1 0 ·12 回 - 1 4 百 - 1 6 - 1 8 - 2 0 - 2 2 -2 4 - 2 6 - 2 8 3 Figu『-e 4: Influence of Plastic Encapsulation and Test Pins A small pa门on the TPL3936 PCB is equipped with test pins. These are intended for use during development. This pa时of the PCB will typically be omitted in a final application. The red and green graph…

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