FC41D User Manual Wi-Fi&Bluetooth Module Series Version: 1.0.
Wi-Fi&Bluetooth Module Series Our aim is to provide customers with timely and comprehensive service. For any assistance, please contact our company headquarters: Quectel Wireless Solutions Co., Ltd. Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District, Shanghai 200233, China Tel: +86 21 5108 6236 Email: info@quectel.com Or our local office. For more information, please visit: http://www.quectel.com/support/sales.htm.
Wi-Fi&Bluetooth Module Series Safety Information The following safety precautions must be observed during all phases of operation, such as usage, service or repair of any cellular terminal or mobile incorporating the module. Manufacturers of the cellular terminal should notify users and operating personnel of the following safety information by incorporating these guidelines into all manuals of the product. Otherwise, Quectel assumes no liability for customers’ failure to comply with these precautions.
Wi-Fi&Bluetooth Module Series About the Document Revision History Version Date Author Description - 2021-11-17 Soni RAO/ Michael DU Initial FC41D_Hardware_Design 3 / 46
Wi-Fi&Bluetooth Module Series Contents Safety Information .................................................................................................................................... 2 About the Document ................................................................................................................................ 3 Contents ....................................................................................................................................................
Wi-Fi&Bluetooth Module Series 4.3. 4.4. 4.5. I/O Characteristics .................................................................................................................. 35 Current Consumption ............................................................................................................. 35 RF Performances ................................................................................................................... 37 4.5.1. Wi-Fi Performances .................................
Wi-Fi&Bluetooth Module Series Table Index Table 1: Special Mark .......................................................................................................................................... 8 Table 2: Key Features ......................................................................................................................................... 9 Table 3: I/O Parameters Description ............................................................................................................
Wi-Fi&Bluetooth Module Series Figure Index Figure 1: Pin Assignment (Top View) ................................................................................................................ 13 Figure 2: VBAT Reference Circuit ..................................................................................................................... 17 Figure 3: Reference Circuit of CEN by Using Driving Circuit ............................................................................
Wi-Fi&Bluetooth Module Series 1 Introduction This document defines the FC41D module and describes its air interface and hardware interfaces which are connected with your application. With this document, you can quickly understand module interface specifications, electrical and mechanical details, as well as other related information of the module. The document, coupled with application notes and user guides, makes it easy to design and set up mobile applications with the module. 1.1.
Wi-Fi&Bluetooth Module Series 2 Product Concept 2.1. General Description FC41D is a low-power, cost-effective Bluetooth 5.2 and Wi-Fi 802.11b/g/n module, which integrates the hardware and software resources required for Wi-Fi and Bluetooth applications. It can support AP and STA of Wi-Fi connection, and low-power Bluetooth connection. It is very suitable for low flow control and data acquisition applications such as home intelligent terminal, industrial application and so on.
Wi-Fi&Bluetooth Module Series 802.11b: 1 Mbps, 2 Mbps, 5.5 Mbps, 11 Mbps 802.11g: 6 Mbps, 9 Mbps, 12 Mbps, 18 Mbps, 24 Mbps, 36 Mbps, 48 Mbps, 54 Mbps 802.11n: HT20 (MCS0–MCS7) Wi-Fi Transmitting Power 2.4 GHz 802.11 b/11 Mbps: 16 dBm 802.11 g/54 Mbps: 14 dBm 802.11 n/HT20 MCS7: 13 dBm Wi-Fi Protocol Features IEEE 802.
Wi-Fi&Bluetooth Module Series 2.3. Evaluation Board To help customers develop applications with FC41D module conveniently, Quectel supplies the evaluation board (EVB). The evaluation board tool includes an EVB board (FC41D-TE-B), a USB 2.0 data cable, an antenna and other external equipment used for control and test modules. For more details, see document [1].
Wi-Fi&Bluetooth Module Series 3 Application Interfaces 3.1. General Description The FC41D module has 27 LCC pins.
Wi-Fi&Bluetooth Module Series 3.2.
Wi-Fi&Bluetooth Module Series 3.3. Pin Description The following tables show the pin description of module: Table 3: I/O Parameters Description Type Description AI Analog Input AIO Analog Input/Output DI Digital Input DIO Digital Input/Output DO Digital Output OD Open Drain PI Power Input Table 4: Pin Description Power Supply Pin Name Pin No. I/O Description DC Characteristics Comment PI Power supply for the module Vmax = 3.6 V Vmin = 3.0 V Vnom = 3.
Wi-Fi&Bluetooth Module Series transmit MAIN_RXD 19 DI Main UART receive DBG_TXD 26 DO Debug UART transmit DBG_RXD 25 DI Debug UART receive Pin Name Pin No. I/O Description SPI_MISO 13 DIO SPI master-in salve-out SPI_MOSI 14 DIO SPI master-out slave-in SPI Interface SPI_CLK 17 DIO SPI clock SPI_CS 18 DIO SPI chip selection Pin Name Pin No. I/O Description I2C_SCL 4 OD I2C serial clock DC Characteristics Comment 3.
Wi-Fi&Bluetooth Module Series PMW interface. PWM Interface* Pin Name I/O Description DC Characteristics 11 DO Pulse width modulation output channel 3.3 V power domain Pin Name Pin No. I/O Description DC Characteristics GPIO1 10 DIO General-purpose input/output GPIO2 22 DIO General-purpose input/output PWM Pin No. Comment GPIO Interfaces 3.3 V power domain Comment Can be reused as PMW interface.
Wi-Fi&Bluetooth Module Series 3.4. Power Supply Design 3.4.1. Pin Description The following table shows the power supply pin and ground pin of FC41D module. Table 5: Definition of Power Supply and GND Pins Pin Name Pin No. Description Min. Typ. Max. Unit VBAT 15 Power supply 3.0 3.3 3.6 V GND 1, 3, 16, 27 FC41D module is powered by VBAT, and it is recommended to use a power supply chip with sufficient current of at least 0.3 A.
Wi-Fi&Bluetooth Module Series 3.5. Reset the module Drive CEN low for at least 100 ms and then release to reset the module. Table 6: Definition of Power Supply and GND Pins Pin Name Pin No. Description Comment CEN 9 Reset the module Pulled up to 3.3 V internally (≥ 100 ms). The reference designs for resetting the module are shown below. An open drain/collector driving circuit or a button can be used to control the CEN pin. CEN 4.
Wi-Fi&Bluetooth Module Series The reset timing is illustrated in the following figure. VBA T T 100 ms VIH CEN VIL 2.4 V 0.5 V Figure 5: Timing of Resetting Module 3.6. Wireless Connection Interfaces 3.6.1. UART The module has two serial interfaces: the main UART and the debug UART. The module is used as DCE (Data Communication Equipment), and is connected in the traditional DCE-DTE (Data Terminal Equipment) mode. Table 7: UART Pin Definition Interface Pin Name Pin No.
Wi-Fi&Bluetooth Module Series DTE Module (DCE) MAIN_TXD UART_RXD MAIN_RXD UART_TXD GND GND Figure 6: Main UART Connection Diagram Through debug tools, the debug UART can be used to output logs for firmware debugging. Its baud rate is 115200 bps by default. The following is a reference design of debug UART. Module DBG_TXD Test point DBG_RXD ESD Figure 7: Debug UART Reference Crcuit 3.6.2. SPI FC41D module provides a SPI interface that supports both master and slave modes.
Wi-Fi&Bluetooth Module Series The pin description of SPI interface is shown in the below table: Tabel 8: SPI Pin Definition Interface Pin Name Pin No.
Wi-Fi&Bluetooth Module Series t(mih) SPI hold time of master mode data input 1.0 - - ns 3.7. I2C Interface FC41D module provides an I2C interface that support support master mode only with maximum clock frequency of 400 kHz and 7-bit addressing. It can be used to connect peripherals such as EEPROM. Table 10: I2C Pin Definition Pin Name Pin No. I/O Description I2C_SCL 4 OD I2C serial clock I2C_SDA 5 OD I2C serial data Function Require external pull-up to 3.3 V 3.8.
Wi-Fi&Bluetooth Module Series ADC 21 DO ADC PWM6 3.9. WAKEUP Interface FC41D supports waking up host with WAKEUP_OUT*, and it can also be woken up from deep sleep by WAKEUP_IN. Table 12: Pin Definition of WAKEUP Interfaces Pin Name Pin No. I/O Description Comment WAKEUP_IN 7 DI Wake up the module from deep sleep Rise level wakeup WAKEUP_OUT* 8 DO Wake up output 3.10. Network Status Indication FC41D provides one network indication pin: NET_STATUS.
Wi-Fi&Bluetooth Module Series VBAT Module 2.2K NET_STATUS 4.7K 47K Figure 9: Reference Circuit of the Network Status Indicator 3.11. GPIO Interfaces FC41D module provides 4 GPIOs by default. Any GPIO can be configured as interrupt to wake the module from low power mode. The following table show the pin description of GPIO Interfaces. Tabel 14: GPIO Pin Definition Pin Name Pin No.
Wi-Fi&Bluetooth Module Series Table 15: ADC Pin Definition Pin Name Pin No. Description ADC 21 General-purpose ADC interface Table 16: ADC Features Parameter Min. Typ. Max. Unit ADC Voltage Range 0 - 2.4 V ADC Resolution Rate - TBD - bits ADC Sample Rate - TBD - MHz 3.13. RF Antenna Interface FC41D module provides PCB antenna, IPEX connector or ANT_WIFI/BT pin (stamp hole) in three order codes.
Wi-Fi&Bluetooth Module Series 3.13.2. RF Antenna Pin Description RF Antenna pin description is as below: Table 18: Antenna Pin Definition Pin Name Pin No. I/O Description Note ANT_WIFI/BT 2 AIO Wi-Fi/Bluetooth antenna interface 50 Ω impedance 3.13.3. On Board PCB Antenna Table 19: On Board PCB Antenna Characteristics* Characters Min. Typ. Max.
Wi-Fi&Bluetooth Module Series 3.13.4. IPEX Connector The mechanic size of the IPEX connector(MPN: 20579-001E, MHF 4L Receptacle) provided by the FC41D module are as follows. Figure 10: IPEX Connector Size 3.13.5. RF Antenna Reference Design FC41D module is equipped with RF antenna pad for connecting Wi-Fi/Bluetooth antennas. The RF trace between main PCB and the module RF antenna pin must be the microstrip line or other types of RF trace, and the characteristic impedance should be close to 50 Ω.
Wi-Fi&Bluetooth Module Series FC41D R1 ANT_WIFI/BT L1 NM C1 NM 0R C2 NM C3 NM Figure 11: RF Antenna Reference Design When using the PCB antenna on the module, the module should be placed at the side of the motherboard as far as possible, and the distance of keeout between PCB antenna to GND of motherboard should be at least 3mm, and the distance between PCB antenna to connectors, pin headers, ethernet port and any other high components on the motherboard should be at least 16 mm.
Wi-Fi&Bluetooth Module Series of the RF traces is usually determined by the trace width (W), the material’s dielectric constant, the height from the reference ground to the signal layer (H), and the spacing between RF traces and grounds (S). The microstrip or coplanar waveguide is typically used in RF layout to control characteristic impedance. The following are reference designs for microstrip or coplanar waveguide transmission lines with different PCB structures.
Wi-Fi&Bluetooth Module Series Figure 16: Coplanar Waveguide Design on a 4-layer PCB (Layer 4 as Reference Ground) To ensure RF performance and reliability, the following principles should be complied with in RF layout design: Use an impedance simulation tool to accurately control the characteristic impedance of RF traces to 50 Ω. The GND pins adjacent to RF pins should not be designed as thermal relief pads, and should be fully connected to ground.
Wi-Fi&Bluetooth Module Series Table 20: Antenna Cable Requirement Frequence Requirement 2.412–2.484 GHz Insertion loss <1 dB Table 21: Antenna Requirement Type Requirement Frequence 2.412–2.484 GHz VSWR <2 Gain (dBi) Typical 1 Max input power (W) 50 Input impedance (Ω) 50 Polarization type Vertical 3.14. Recommended RF Connector for Antenna Installation If RF connector is used for antenna connection, it is recommended to use Hirose's U. FL-R-SMT connector.
Wi-Fi&Bluetooth Module Series Figure 17: U.FL-R-SMT Connector (Unit: mm) U. FL-LP series connectors can be selected to match U.FL-R-SMT. Figure 18: U.
Wi-Fi&Bluetooth Module Series Figure 19: Connectors and Connector Combinations (Unit: mm) For more information, please visit http://www.hirose.com.
Wi-Fi&Bluetooth Module Series 4 Reliability, Radio and Electrical Characteristics 4.1. General Description This chapter mainly introduces the electrical characteristics and RF characteristics of the module. The specific contents are as follows: Electrical Characteristics I/O Characteristics Power Consumption RF Characteristics ESD Performance 4.2.
Wi-Fi&Bluetooth Module Series Table 23: Recommended Operating Conditions Parameter Min. Typ. Max. Unit VBAT 3.0 3.3 3.6 V 4.3. I/O Characteristics The following table lists the general DC electrical characteristics of the module. Table 24: General DC Electrical Characteristics Parameter Description Min. Max. Unit VIH High Level Input Voltage 0.7 × VIO VIO + 0.2 V VIL Low Level Input Voltage -0.3 0.3 × VIO V VOH High Level Output Voltage 0.
Wi-Fi&Bluetooth Module Series Idle WiFi and BT don’t work 22.74 mA 4.4.2. Power Consumption In Work Mode Parameter Condition Typical Unit Wi-Fi Scan Scan every 2s 68.59 μA Connect as Sta mode 74.52 mA Only enable AP, with 1 STA connection 77.11 mA Only enable AP, with 2 STA connection 77.29 mA Enable AP and STA synchronously, with STA mode connection 77.09 SoftAP mode data transmission 155.29 mA Sta mode data transmission 147.
Wi-Fi&Bluetooth Module Series 4.5. RF Performances 4.5.1. Wi-Fi Performances Table 26: 2.4 GHz Conducted Output Power Operating Mode / Rate Min. Typ. Unit 802.11b @ 1 Mbps 14 16 dBm 802.11b @ 11 Mbps 14 16 dBm 802.11g @ 6 Mbps 13 15 dBm 802.11g @ 54 Mbps 12 14 dBm 802.11n, HT20 @ MCS0 12 14 dBm 802.11n, HT20 @ MCS7 11 13 dBm Table 27: 2.4 GHz Conducted Receive Sensitivity Operating Mode / Rate Typ. (dBm) 802.11b @ 1 Mbps -96 802.11b @ 11 Mbps -87 802.
Wi-Fi&Bluetooth Module Series 4.6. ESD Performances The module is not protected against electrostatics discharge (ESD) in general. Consequently, it is subject to ESD handling precautions that typically apply to ESD sensitive components. Proper ESD handling and packaging procedures must be applied throughout the processing, handling and operation of any application that incorporates the module. The following table shows the module electrostatic discharge characteristics.
Wi-Fi&Bluetooth Module Series 5 Mechanical Dimensions This chapter describes the mechanical dimensions of the module. All dimensions are measured in millimeter (mm), and the dimensional tolerances are ±0.2 mm unless otherwise specified. 5.1.
Wi-Fi&Bluetooth Module Series Pin 1 Figure 21: Module Dimension (Bottom View) NOTE The package warpage level of the module conforms to the JEITA ED-7306 standard.
Wi-Fi&Bluetooth Module Series 5.2. Recommended Footprint Figure 22: Recommeded Footprint (Top View) NOTE For easy maintenance of the module, keep about 3 mm between the module and other components on the motherboard.
Wi-Fi&Bluetooth Module Series 6 Storage, Manufacturing and Packaging 6.1. Storage The module is provided with vacuum-sealed packaging. MSL of the module is rated as 3. The storage requirements are shown below. 1. Recommended Storage Condition: The temperature should be 23 ±5 °C and the relative humidity should be 35–60 %. 2. The storage life (in vacuum-sealed packaging) is 12 months in Recommended Storage Condition. 3.
Wi-Fi&Bluetooth Module Series NOTE 1. To avoid blistering, layer separation and other soldering issues, extended exposure of the module to the air is forbidden. 2. Take out the module from the package and put it on high-temperature-resistant fixtures before baking. All modules must be soldered to PCB within 24 hours after the baking, otherwise put them in the drying oven. If shorter baking time is desired, see IPC/JEDEC J-STD-033 for the baking procedure. 3.
Wi-Fi&Bluetooth Module Series Table 30: Recommended Thermal Profile Parameters Factor Recommendation Soak Zone Max slope 1–3 °C/s Soak time (between A and B: 150 °C and 200 °C) 70–120 s Reflow Zone Max slope 2–3 °C/s Reflow time (D: over 217 °C) 40–70 s Max temperature 238 °C to 246 °C Cooling down slope -1.5 to -3 °C/s Reflow Cycle Max reflow cycle 1 NOTE 1.
Wi-Fi&Bluetooth Module Series Figure 24: Tap Specification Figure 25: Reel Specification FC41D_Hardware_Design 45 / 46
Wi-Fi&Bluetooth Module Series 7 Appendix References Table 31: Reference Documents Document Name [1] Quectel_FC41D-TE-B_User_Guide [2] Quectel_FC41D_AT_Command_Manual [3] Quectel_RF_Layout_Application_Note [4] Quectel_Module_SMT_Application_Note Table 32: Terms and Abbreviations Abbreviation Description AP Access Point BLE Bluetooth Low Energy BPSK Binary Phase Shift Keying BT Bluetooth CCK Complementary Code Keying CTS Clear To Send DPSK Differential Phase Shift Keying DQPSK Different
Wi-Fi&Bluetooth Module Series GND Ground HT High Throughput IEEE Institute of Electrical and Electronics Engineers I/O Input/Output Mbps Million Bits Per Second QAM Quadrature Amplitude Modulation QPSK Quadrature Phase Shift Keying RF Radio Frequency RH Relative Humidity RoHS Restriction of Hazardous Substances STA Spike-triggered average RTS Request to Send RXD Receive Data SDIO Secure Digital Input and Output Card TBD To Be Determined TXD Transmit Data UART Universal Asyn
Wi-Fi&Bluetooth Module Series Hereby, [Quectel] declares that the radio equipment type [Stand-alone Wi-Fi&Bluetooth Module] is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: https://www.quectel.com/shop OEM/Integrators Installation Manual Important Notice to OEM integrators 1.This module is limited to OEM installation ONLY. 2.
Wi-Fi&Bluetooth Module Series 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.
Wi-Fi&Bluetooth Module Series antenne ou émetteur. Caution Exposure: This device meets the exemption from the routine evaluation limits in section 2.5 of RSS102 and users can obtain Canadian information on RF exposure and compliance. Le dispositif répond à l'exemption des limites d'évaluation de routine dans la section 2.5 de RSS102 et les utilisateurs peuvent obtenir des renseignements canadiens sur l'exposition aux RF et le respect.
