FC905A User Manual Wi-Fi&Bluetooth Module Series Version: 1.0.
Wi-Fi&Bluetooth Module Series At Quectel, our aim is to provide timely and comprehensive services to our customers. If you require any assistance, please contact our 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 offices. For more information, please visit: http://www.quectel.com/support/sales.htm.
Wi-Fi&Bluetooth Module Series Third-Party Rights This document may refer to hardware, software and/or documentation owned by one or more third parties (“third-party materials”). Use of such third-party materials shall be governed by all restrictions and obligations applicable thereto.
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 Contents Safety Information .................................................................................................................................... 3 Contents .................................................................................................................................................... 4 Table Index ...............................................................................................................................................
Wi-Fi&Bluetooth Module Series 4 Electrical Characteristics & Reliability .......................................................................................... 36 4.1. General Description ................................................................................................................ 36 4.2. Absolute Maximum Ratings & Recommended Operating Conditions ..................................... 36 4.3. I/O Interface Characteristics .............................................................
Wi-Fi&Bluetooth Module Series Table Index Table 1: Special Marks ............................................................................................................................ 12 Table 2: Key Features ............................................................................................................................. 13 Table 3: I/O Parameters Definition ..........................................................................................................
Wi-Fi&Bluetooth Module Series Figure Index Figure 2: Pin Assignment (Top View) ...................................................................................................... 17 Figure 4: Power-up Timing ...................................................................................................................... 21 Figure 6: WLAN Application Interface Connection .................................................................................. 22 Figure 7: SDIO Interface Connection ........
Wi-Fi&Bluetooth Module Series 1 Introduction This document defines the FC905A and describes its air interfaces and hardware interfaces which are connected with your application. 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.
Wi-Fi&Bluetooth Module Series emissions). The host manufacturer must verify that there are no additional unintentional emissions other than what is permitted in Part 15 Subpart B or emissions are complaint with the transmitter(s) rule(s). The Grantee will provide guidance to the host manufacturer for Part 15 B requirements if needed.
Wi-Fi&Bluetooth Module Series Radiation Exposure Statement: This equipment complies with ISED radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. Déclaration d'exposition aux radiations: Cet équipement est conforme aux limites d'exposition aux rayonnements ISED établies pour un environnement non contrôlé.
Wi-Fi&Bluetooth Module Series maintained between the antenna and users. The final end product must be labeled in a visible area with the following: “Contains IC: 10224A-2022FC905A”. Plaque signalétique du produit final Ce module émetteur est autorisé uniquement pour une utilisation dans un dispositif où l'antenne peut être installée de telle sorte qu'une distance de 20cm peut être maintenue entre l'antenne et les utilisateurs.
Wi-Fi&Bluetooth Module Series band 5725-5850 MHz shall be such that the equipment still complies with the e.i.r.p. limits as appropriate; and iii. where applicable, antenna type(s), antenna models(s), and worst-case tilt angle(s) necessary to remain compliant with the e.i.r.p. elevation mask requirement set forth in section 6.2.2.3 shall be clearly indicated. 1.1.
Wi-Fi&Bluetooth Module Series 2 Product Overview 2.1. General Description FC905A is a Wi-Fi and Bluetooth module with low power consumption and high performance. It is a single-die WLAN (Wireless Local Area Network) and Bluetooth combo solution supporting IEEE 802.11a/b/g/n/ac WLAN standards and Bluetooth 5.0 standard which enables seamless integration of WLAN and Bluetooth low energy technologies. With a SDIO 3.
Wi-Fi&Bluetooth Module Series 802.11n: HT20 (MCS0–MCS7) 5 GHz: 802.11a: 6 Mbps, 9 Mbps, 12 Mbps, 18 Mbps, 24 Mbps, 36 Mbps, 48 Mbps, 54 Mbps 802.11n: HT20 (MCS0–MCS7), HT40 (MCS0–MCS7) 802.11ac: VHT20 (MCS0–MCS8), VHT40 (MCS0–MCS9), VHT80 (MCS0–MCS9) 2.4 GHz: 802.11b/11 Mbps: 18±1.5 dBm 802.11g/54 Mbps: 16±1.5 dBm 802.11n/HT20 MCS7: 15±1.5 dBm Wi-Fi Transmitting Power 1 5 GHz: 802.11a/54 Mbps: 15±1.5 dBm 802.11n/HT20 MCS7: 15±1.5 dBm 802.11n/HT40 MCS7: 13±1.5 dBm 802.
Wi-Fi&Bluetooth Module Series NOTE FC905A supports internal crystal or external crystal. 2.3. EVB To help customers to develop applications with FC905A, the evaluation board tools include EVB board (FC905A-M.2 and corresponding TE-A), USB 2.0 data cable, antenna and other external devices used to control and test the module. For details, see document [1].
Wi-Fi&Bluetooth Module Series 3 Application Interfaces 3.1. General Description FC905A is equipped with 44 LCC pins.
Wi-Fi&Bluetooth Module Series 34 BT_EN 35 RESERVED 36 GND 37 GPIO4 38 GPIO3 39 GPIO2 40 GPIO1 41 BT_RTS 42 BT_TXD 43 BT_RXD 44 BT_CTS 3.2.
Wi-Fi&Bluetooth Module Series 3.3. Pin Description The following tables show the pin description of FC905A. Table 3: I/O Parameters Definition Type Description AIO Analog Input/Output DI Digital Input DO Digital Output DIO Digital Input/Output PI Power Input PO Power Output Table 4: Pin Description Power Supply Pin Name Pin No.
Wi-Fi&Bluetooth Module Series SDIO_DATA2 14 DIO SDIO data bit 2/NC SDIO_DATA3 15 DIO SDIO data bit 3/NC SDIO_CMD 16 DIO SDIO command SDIO_CLK 17 DI SDIO clock SDIO_DATA0 18 DIO SDIO data bit 0 SDIO_DATA1 19 DIO SDIO data bit 1/IRQ I/O Description Comment VIO power domain. Active high. If unused, pull it down. VIO power domain. Supports 1-bit or 4-bit mode. Bluetooth Application Interface Pin Name Pin No.
Wi-Fi&Bluetooth Module Series WLAN_SLP_CLK 24 DI External 32.768 kHz low power clock input XTAL_IN 10 DI Crystal input Optional. XTAL_OUT DO Crystal output 29 DI SDIO mode selection 1.8 V: pull-up by default 3.3 V: pull-down and connect to GND through 10 kΩ resistor 40 DIO GPIO2 39 DIO GPIO3 38 DIO GPIO4 37 DIO SDIO_VSEL GPIO1 2 11 General-purpose input/output VIO power domain. If unused, keep them open. RESERVED Pin Name Pin No.
Wi-Fi&Bluetooth Module Series Table 5: Definition of Power Supply and GND Pins Pin Name Pin No. Description Min. Typ. Max. Unit VBAT 9 Power supply for the module 3.0 3.6 4.8 V VIO 22 Power supply for module’s I/O pins 1.71 1.8/3.3 3.63 V GND 1, 3, 20, 31, 33, 36 Ground The FC905A is powered by VBAT. It is recommended to use a power chip with a maximum output current of more than 0.5 A.
Wi-Fi&Bluetooth Module Series VIN_LDO 23 Internal buck input for the module GND 20 Buck circuit dedicated GND pin - 1.35 V - VIN_LDO_OUT/VIN_LDO is the output and input pins of the buck circuit inside the module, and pin 20 is the dedicated GND pin of the buck circuit. Because the buck circuit is prone to high-frequency noise, special attention should be paid to it. It is recommended to use 2.2 μH inductors such as TFM201610ALM-2R2MTAA (TDK) and 4.
Wi-Fi&Bluetooth Module Series SDIO link). SDIO interface definition is as follows: Table 8: Pin Definition of SDIO Interface Pin Name Pin No. 1-bit Mode 4-bit Mode SDIO_DATA2 14 NC SDIO data bit 2 SDIO_DATA3 15 NC SDIO data bit 3 SDIO_CMD 16 SDIO command SDIO command SDIO_CLK 17 SDIO clock SDIO clock SDIO_DATA0 18 SDIO data bit 0 SDIO data bit 0 SDIO_DATA1 19 IRQ SDIO data bit 1 The following figure shows the SDIO interface connection between FC905A and host.
Wi-Fi&Bluetooth Module Series Route the SDIO traces in inner-layer of the PCB and the impedance is controlled at 50 Ω ±10 %. SDIO signals need to be keep away from sensitive signals, such as radio frequency, analog signals, clocks, and DC-DC noise signals. SDIO signal traces (SDIO_CLK and SDIO_DATA[0:3]/SDIO_CMD) need to be treated with equal length (the distance between the traces is less than 0.5 mm).
Wi-Fi&Bluetooth Module Series HOST FC905A UART UART PCM PCM BT_EN BT_EN BT_WAKE_HOST GPIO1 HOST_WAKE_BT GPIO2 Figure 5: Block Diagram of Bluetooth Application Interface Connection 3.6.1. UART Interface FC905A supports an HCI UART as defined in Bluetooth Core Specification Version 5.1. The UART supports hardware flow control, and it is used for data transmission with host. It supports up to 4.0 Mbps baud rates. Table 11: Pin Definition of UART Interface Pin Name Pin No.
Wi-Fi&Bluetooth Module Series HOST FC905A BT_TXD UART_RXD BT_RXD UART_TXD BT_RTS UART_CTS BT_CTS UART_RTS Figure 6: Reference Design for UART Interface Connection NOTE When paired with Quectel's LTE modules (EC21 series and EC25 series), it may be their own CTS connected to CTS and RTS connected to RTS. This depends on the input and output directions, so in principle, when connected, the input corresponds to the output. 3.6.2. BT_EN BT_EN is used to control the Bluetooth function of FC905A.
Wi-Fi&Bluetooth Module Series Table 13: Pin Definition of BT_WAKEUP_HOST and HOST_WAKEUP_BT Pin Name Pin No. I/O Description Comment HOST_WAKE_BT 6 DI Host wakes up Bluetooth function BT_WAKE_HOST 7 DO Bluetooth function wakes up host VIO power domain. If unused, keep them open. 3.6.4. PCM Interface PCM interface is used for audio over Bluetooth. The following table shows the pin definition of PCM interface. Table 14: Pin Definition of PCM Interface Pin Name Pin No.
Wi-Fi&Bluetooth Module Series 3.7. Other Interfaces 3.7.1. WLAN_SLP_CLK The 32.768 kHz sleep clock is used in low power modes, such as IEEE power saving mode and sleep mode. It serves as a timer to determine when to wake up the FC905A to receive signals in various power saving schemes, and to maintain basic logic operations when the module is in sleep mode. Table 15: Pin Definition of WLAN_SLP_CLK Interface Pin Name Pin No. I/O Description WLAN_SLP_CLK 24 DI External 32.
Wi-Fi&Bluetooth Module Series 3.7.2. XTAL_IN/OUT The XTAL_IN and XTAL_OUT pins are external crystal pins, and the recommended crystal frequency is 37.4 MHz. These pins are optional pins, and the crystal position has been reserved inside the module, and customers can choose according to their needs. The following table is the recommended crystal parameters. It is recommended that customers select the crystal according to the following table: Table 17: XO Parameter Definition Parameter Min Typ.
Wi-Fi&Bluetooth Module Series Table 19: Pin Definition of GPIOs Pin Name Pin No. I/O GPIO1 40 DIO GPIO2 39 DIO GPIO3 38 DIO GPIO4 37 DIO Description Comment General-purpose input/output VIO power domain. If unused, keep them open. 3.8. RF Antenna Interfaces ANT_WIFI0/BT is the RF antenna pin, and the RF port requires 50 Ω characteristic impedance. 3.8.1. Operating Frequency The operating frequency of FC905A is shown in the following.
Wi-Fi&Bluetooth Module Series 3.8.3. Reference Design FC905Amodule provides an RF antenna pin for Wi-Fi/Bluetooth antenna connection. The RF trace in host PCB connected to the module’s RF antenna pin should be microstrip line or other types of RF trace, with characteristic impendence close to 50 Ω. FC905A comes with grounding pins which are next to the antenna pin in order to give a better grounding. A reference circuit for the RF antenna interface is shown below.
Wi-Fi&Bluetooth Module Series Figure 10: Coplanar Waveguide Design on a 4-layer PCB (Layer 3 as Reference Ground) Figure 11: 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 RF layout design: Use impedance simulation tool to control the characteristic impedance of RF traces to 50 Ω.
Wi-Fi&Bluetooth Module Series 3.8.5. Requirements for Antenna Design The antenna design requirements are as follows: Table 22: Antenna Cable Requirements Type Requirements 2.412–2.472 GHz Cable insertion loss < 1 dB 5.150–5.875 GHz The antenna requirements are as follows: Table 23: Antenna Requirements Type Requirements Frequency Range 2.412–2.472 GHz 5.150–5.875 GHz VSWR <2 Gain (dBi) Typ. 1 Max Input Power (W) 50 Input Impedance (Ω) 50 Polarization Type Vertical 3.8.6.
Wi-Fi&Bluetooth Module Series Figure 12: Dimensions of the U.FL-R-SMT Connector (Unit: mm) U.FL-LP serial connectors listed in the following figure can be used to match the U.FL-R-SMT Figure 13: Mechanicals of U.FL-LP Connectors The following figure describes the space factor of mated connector.
Wi-Fi&Bluetooth Module Series Figure 14: Space Factor of Mated Connector (Unit: mm) For more information, please visit http://www.hirose.com.
Wi-Fi&Bluetooth Module Series 4 Electrical Characteristics & Reliability 4.1. General Description This chapter mainly introduces the electrical characteristics and radio frequency characteristics of FC905A, the specific content is as follows: Absolute maximum ratings & recommended operating conditions I/O interface characteristics Power consumption RF performance Electrostatic discharge 4.2.
Wi-Fi&Bluetooth Module Series VIO 1.71 1.8/3.3 3.63 V 4.3. I/O Interface Characteristics The following table shows the general DC electrical characteristics over recommended operating conditions (unless otherwise specified). Table 26: General DC Electrical Characteristics Symbol Parameter 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 0.9 × VIO VIO V VOL Low-level Output Voltage 0 0.
Wi-Fi&Bluetooth Module Series TX (2.4 GHz) @ HT20 MCS7 216 mA TX (5 GHz) @ 6 Mbps 316 mA TX (5 GHz) @ 54 Mbps 222 mA TX (5 GHz) @ HT20 MCS0 309 mA TX (5 GHz) @ HT20 MCS7 217 mA TX (5 GHz) @ HT40 MCS0 303 mA TX (5 GHz) @ HT40 MCS7 199 mA TX (5 GHz) @ VHT20 MCS0 307 mA TX (5 GHz) @ VHT20 MCS8 208 mA TX (5 GHz) @ VHT40 MCS0 304 mA TX (5 GHz) @ VHT40 MCS9 194 mA TX (5 GHz) @ VHT80 MCS0 299 mA TX (5 GHz) @ VHT80 MCS9 201 mA 802.11a 802.11n 802.11ac 4.5.
Wi-Fi&Bluetooth Module Series 802.11n, HT20 @ MCS0 18 dBm ±1.5 dB 802.11n, HT20 @ MCS7 15 dBm ±1.5 dB Table 29: Conducted RF Output Power at 5 GHz Description Typ. Unit Accuracy 802.11a @ 6 Mbps 17 dBm ±1.5 dB 802.11a @ 54 Mbps 15 dBm ±1.5 dB 802.11n, HT20 @ MCS0 17 dBm ±1.5 dB 802.11n, HT20 @ MCS7 15 dBm ±1.5 dB 802.11n, HT40 @ MCS0 16 dBm ±1.5 dB 802.11n, HT40 @ MCS7 13 dBm ±1.5 dB 802.11ac, VHT20 @ MCS0 17 dBm ±1.5 dB 802.11ac, VHT20 @ MCS8 14 dBm ±1.5 dB 802.
Wi-Fi&Bluetooth Module Series 802.11g @ 54 Mbps -76 dBm ±1.5 dB 802.11n, HT20 @ MCS0 -91 dBm ±1.5 dB 802.11n, HT20 @ MCS7 -74 dBm ±1.5 dB Table 30: Conducted RF Receiving Sensitivity at 5 GHz Description Typ. Unit Accuracy 802.11a @ 6 Mbps -92 dBm ±1.5 dB 802.11a @ 54 Mbps -75 dBm ±1.5 dB 802.11n, HT20 @ MCS0 -92 dBm ±1.5 dB 802.11n, HT20 @ MCS7 -72 dBm ±1.5 dB 802.11n, HT40 @ MCS0 -88 dBm ±1.5 dB 802.11n, HT40 @ MCS7 -68 dBm ±1.5 dB 802.
Wi-Fi&Bluetooth Module Series 4.6.1 Conducted RF Output Power Table 31: Conducted RF Output Power Description Min. Typ. Unit GFSK 7 9 dBm π/4-DQPSK 4 6 dBm 8-DQPSK 4 6 dBm BLE_1M 2 4 dBm 4.6.2 Conducted RF Receiving Sensitivity Table 32: Conducted RF Receiving Sensitivity at 2.4 GHz Description Receiving Sensitivity (Typ.) GFSK -88 dBm π/4-DQPSK -92 dBm 8-DQPSK -85 dBm BLE_1M -92 dBm 4.7.
Wi-Fi&Bluetooth Module Series Tested Interfaces Contact Discharge Air Discharge Unit VBAT、GND 8 12 kV ANT_WIFI0/BT 5 10 kV FC905A_Hardware_Design 42 / 51
Wi-Fi&Bluetooth Module Series 5 Mechanical Information This chapter describes the mechanical dimensions of FC905A. All dimensions are measured in millimeter (mm), and the dimensional tolerances are ±0.2 mm unless otherwise specified. 5.
Wi-Fi&Bluetooth Module Series 5.7 Top and Bottom Views Figure 16: Top & Bottom View of FC905A NOTE Images above are for illustration purpose only and may differ from the actual module. For authentic appearance and label, please refer to the module received from Quectel.
Wi-Fi&Bluetooth Module Series 6 Storage, Manufacturing & Packaging 6.6 Storage Conditions 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 34: 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 235 °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 6.8 Packaging Specifications The module adopts carrier tape packaging and details are as follow: 6.8.1 Carrier Tape Dimension details are as follow: Figure 18: Carrier Tape Dimension Drawing Table 35: Carrier Tape Dimension Table (Unit: mm) W P T A0 B0 K0 K1 F E 24 16 0.35 12.4 12.4 2.6 3.6 11.5 1.75 6.8.
Wi-Fi&Bluetooth Module Series Table 36: Plastic Reel Dimension Table (Unit: mm) øD1 øD2 W 330 100 24.5 6.8.3 Packaging Process Place the module into the carrier tape and use the cover tape to cover it; then wind the heat-sealed carrier tape to the plastic reel and use the protective tape for protection. 1 plastic reel can load 500 modules. Place the packaged plastic reel, humidity indicator card and desiccant bag into a vacuum bag, vacuumize it.
Wi-Fi&Bluetooth Module Series 7 Appendix References Table 37: Related Documents SN Document Name [1] Quectel_UMTS<E_EVB_User_Guide [2] Quectel_RF_Layout_Application_Note [3] Quectel_Module_Secondary_SMT_Application_Note Table 38: 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 DQPSK Differential Quadrature Reference Phase Shift Keying GATT Generic
Wi-Fi&Bluetooth Module Series QAM Quadrature Amplitude Modulation QPSK Quadrature Phase Shift Keying RF Radio Frequency RoHS Restriction of Hazardous Substances STA Spike-triggered average RTS Request to Send RXD Receive Data TBD To Be Determined TXD Transmit Data UART Universal Asynchronous Receiver/Transmitter USB Universal Serial Bus VIHmax Maximum High-level Input Voltage VIHmin Minimum High-level Input Voltage VILmax Maximum Low-level Input Voltage VILmin Minimum Low-level
