WGM160P Wi-Fi® Module Data Sheet The WGM160P is an ultra low power all-inclusive Wi-Fi® module targeted for applications requiring excellent RF performance, low power consumption, high security, integrated customer applications and fast time to market. The WGM160P module integrates all of the necessary elements required for a cloud connected IoT Wi-Fi application, including 802.
WGM160P Wi-Fi® Module Data Sheet Key Features 1. Key Features The key features of the WGM160P module are listed below. Radio Features • Built-in Antenna (optional) • TX Power: +16 dBm • RX Sensitivity: -96 dBm • Superior blocking performance Wi-Fi Features • 802.11: b/g/n • Bit rate: up to 72.2 Mbps • 802.11 Security: WPA2/WPA Personal • STA (Station Mode) • SoftAP (Soft Access Point Mode) Electrical Characteristics • Supply voltage: 3.0V to 3.
WGM160P Wi-Fi® Module Data Sheet Ordering Information 2. Ordering Information Table 2.1. Ordering Information Part Number Protocol Max TX Power Flash/Ram (kB) LF XTAL Antenna GPIO Carrier WGM160PX22KGA2 Wi-Fi (802.11 b/g/n) 16 dBm 2048 / 512 Included Built-in Up to 31 Cut Tape WGM160PX22KGA2R Wi-Fi (802.11 b/g/n) 16 dBm 2048 / 512 Included Built-in Up to 31 Reel WGM160P022KGA2 Wi-Fi (802.11 b/g/n) 16 dBm 2048 / 512 None Built-in Up to 31 Cut Tape WGM160P022KGA2R Wi-Fi (802.
Table of Contents 1. Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.2 Wi-Fi Supported 2.4 GHz ISM Modulations, BW, and Channels . . . . . . . . . . . . . 6 4. Electrical Specifications . . .
11.3 FCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 11.4 ISED Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 11.5 Locating the Module Close to Human Body . . . . . . . . . . . . . . . . . . . .41 12. Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 silabs.com | Building a more connected world. Preliminary Rev. 0.
WGM160P Wi-Fi® Module Data Sheet System Overview 3. System Overview 3.1 Introduction The WGM160P module combines the WF200 Wi-Fi transceiver with an EFM32GG11 microcontroller to deliver a complete and certified standalone Wi-Fi solution, with the ability to run customer application on an Cortex M4 processor. This device supports Gecko OS, a comprehensive software solution that simplifies the Wi-Fi , application and cloud connectivity development process to reduce time to market.
WGM160P Wi-Fi® Module Data Sheet Electrical Specifications 4. Electrical Specifications All electrical parameters in all tables are specified under the following conditions, unless stated otherwise: • Typical values are based on TAMB = 25 °C; VVBAT = 3.3V; Center Frequency = 2,437 MHz. • Radio performance numbers are measured in conducted mode, based on Silicon Laboratories reference designs using output power-specific external RF impedance-matching networks for interfacing to a 50 Ω antenna port.
WGM160P Wi-Fi® Module Data Sheet Electrical Specifications 4.2 Operating Conditions Table 4.2. Recommended Operating Conditions Parameter Symbol Ambient operating temperature Nominal supply voltage to VBAT1 Test Condition Min Typ Max Unit TAOP -40 — 85 °C VVBAT 3.0 3.3 3.6 V Note: 1. Operating outside of the recommended voltage supply range is not supported.
WGM160P Wi-Fi® Module Data Sheet Electrical Specifications 4.4 Digital I/O Specifications Table 4.4.
WGM160P Wi-Fi® Module Data Sheet Electrical Specifications 4.5 RF Transmitter General Characteristics Unless otherwise indicated, typical conditions are: Operating Ambient Temp = 25 °C, VBAT = 3.3 V, center frequency = 2,437 MHz, and measured in 50 Ω test equipment attached at antenna port. Measurements for this specification are made at the 50 Ω Antenna Port. See Section 5.1.1 Antenna Ports.
WGM160P Wi-Fi® Module Data Sheet Electrical Specifications 4.6 RF Receiver General Characteristics Unless otherwise indicated, typical conditions are: Operating Ambient Temp = 25 °C, VBAT = 3.3 V, center frequency = 2,437 MHz, and measured in 50 Ω test equipment attached at antenna port. Measurements for this specification are made at the 50 Ω Antenna Port. See Section 5.1.1 Antenna Ports. Table 4.6.
WGM160P Wi-Fi® Module Data Sheet Electrical Specifications 4.8 Microcontroller Peripherals WGM160P offers an extensive list of peripherals, some of which are listed below: • 12-bit ADC • 12-bit DAC • GPIO • USART (UART/SPI/I2S) • QSPI with Execute In Place (XIP) support • Capacitive Touch Sensing in all GPIOs • LESENSE • 10/100 Ethernet MAC with RMII interface (50 MHz external crystal required) • USB device (2.
WGM160P Wi-Fi® Module Data Sheet Typical Applications and Connections 5. Typical Applications and Connections 5.1 RF Connections 5.1.1 Antenna Ports The WGM160P offers two RF ports that support antenna diversity using an internal switch. In applications with only one antenna, the unused port should be terminated to ground with a 47-51 Ω resistor. Leaving the unused port floating or tying directly to ground will result in degraded performance.
WGM160P Wi-Fi® Module Data Sheet Gecko OS Features 6. Gecko OS Features The Gecko OS software supplied with the WGM160P provides a wide range of features beyond the underlying hardware, and supports application development via its command API. For complete documentation of Gecko OS, see https://docs.silabs.com/gecko-os/.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions 7. Pin Descriptions 7.1 WGM160P Device Pinout Figure 7.1. WGM160P Device Pinout The following table provides package pin connections and general descriptions of pin functionality. For detailed information on the supported features for each GPIO pin, see 7.2 GPIO Functionality Table or 7.3 Alternate Functionality Overview. Table 7.1. WGM160P Device Pinout Pin Name ANT_GND Pin(s) 1 2 54 55 Description Antenna ground. silabs.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions Pin Name Pin(s) Description GND 4 8 9 10 11 23 27 30 33 43 52 Ground. Connect all ground pins to ground plane. PTA_TX_CO NF 6 PTA_FREQ Pin Name Pin(s) Description VBAT 5 Module power supply PTA TX_CONF pin. These pins can be used to manage co-existence with another 2.4 GHz radio. PTA_RF_AC T 7 PTA RF_ACT pin. These pins can be used to manage co-existence with another 2.4 GHz radio. 12 PTA FREQ pin.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions 7.2 GPIO Functionality Table A wide selection of alternate functionality is available for multiplexing to various pins. The following table shows the name of each GPIO pin, followed by the functionality available on that pin. Refer to 7.3 Alternate Functionality Overview for a list of GPIO locations available for each function. Full peripheral features and flexibility are not supported with all software architectures.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions GPIO Name Pin Alternate Functionality / Description Analog BUSBY PA6 BUSAX LCD_SEG19 Timers TIM3_CC0 #6 WTIM0_CC0 #1 LETIM1_OUT1 #0 PCNT1_S1IN #0 BUSAY PA15 BUSBX TIM3_CC2 #0 LCD_SEG12 BUSAY PB3 BUSBX LCD_SEG20 / LCD_COM4 TIM1_CC3 #2 WTIM0_CC0 #6 PCNT1_S0IN #1 ETH_MDC #3 U0_RTS #2 LEU1_RX #1 ETH_MDIO #3 US2_CLK #3 Other PRS_CH6 #0 ACMP0_O #4 ETM_TCLK GPIO_EM4WU1 PRS_CH15 #0 ETH_MDIO #0 US2_TX #1 PRS_CH19 #0 US3_TX #2 ACMP0_O #7 QSPI0_DQ4
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions GPIO Name PB13 PB14 Pin Alternate Functionality / Description Analog Timers Communication BUSAY TIM6_CC0 US0_CLK #4 BUSBX WTIM1_CC0 #0 US1_CTS HFXTAL_P PCNT2_S0IN #2 LEU0_TX #1 BUSBY TIM6_CC1 US0_CS BUSAX WTIM1_CC1 US1_RTS HFXTAL_N PCNT2_S1IN #2 LEU0_RX #1 TIM0_CC0 #5 PC4 BUSACMP0Y TIM0_CDTI2 #3 BUSACMP0X TIM2_CC2 OPA0_P LETIM0_OUT0 #3 PCNT1_S0IN #3 PC5 PD6 US2_CLK #0 U0_TX #4 U1_CTS #4 I2C1_SDA #0 Other CMU_CLKI0 #3 PRS_C
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions GPIO Name PE7 Pin Alternate Functionality / Description Analog Timers BUSCY TIM3_CC2 #3 BUSDX TIM5_CC0 LCD_COM3 WTIM1_CC0 #5 BUSDY PE14 BUSCX LCD_SEG10 BUSCY PE15 BUSDX LCD_SEG11 Communication US0_TX US3_RX #1 BUSDY BUSCX TIM2_CDTI1 US0_CTS #0 PRS_CH13 TIM3_CC0 #0 QSPI0_SCLK ETM_TD2 #4 LEU0_TX #2 ETH_RMIITXD0 TIM2_CDTI2 US0_RTS #0 PRS_CH14 TIM3_CC1 #0 QSPI0_DQS ETM_TD3 #4 LEU0_RX #2 TIM0_CC0 #4 CAN0_RX WTIM0_CC1 #4 US1_CLK #2
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions 7.3 Alternate Functionality Overview A wide selection of alternate functionality is available for multiplexing to various pins. The following table shows the name of the alternate functionality in the first column, followed by columns showing the possible LOCATION bitfield settings and the associated GPIO pin. Refer to 7.2 GPIO Functionality Table for a list of functions available on each GPIO pin.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions Alternate Functionality LOCATION 0-3 4-7 0: PF5 Debug-interface JTAG Test Data In. DBG_TDI Note that this function becomes available after the first valid JTAG command is received, and has a built-in pull up when JTAG is active. 0: PF2 Debug-interface JTAG Test Data Out. DBG_TDO ETH_MDC ETH_MDIO ETH_RMIICRSDV Description Note that this function becomes available after the first valid JTAG command is received.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions Alternate Functionality I2C0_SDA I2C1_SCL I2C1_SDA I2C2_SCL LOCATION 0-3 0: PA0 4-7 5: PF0 1: PD6 0: PC5 4: PF2 1: PB12 0: PC4 1: PB11 0: PF5 2: PF11 Description I2C0 Serial Data input / output. I2C1 Serial Clock Line input / output. I2C1 Serial Data input / output. I2C2 Serial Clock Line input / output. I2C2_SDA 2: PF10 I2C2 Serial Data input / output. IDAC0_OUT 0: PB11 IDAC0 output. LCD_COM1 0: PE5 LCD driver common line number 1.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions Alternate Functionality LES_CH5 LOCATION 0-3 4-7 0: PC5 Description LESENSE channel 5. 0: PD6 LETIM0_OUT0 1: PB11 Low Energy Timer LETIM0, output channel 0. 2: PF0 3: PC4 1: PB12 LETIM0_OUT1 2: PF1 Low Energy Timer LETIM0, output channel 1. 3: PC5 LETIM1_OUT0 LETIM1_OUT1 LEU0_RX 4: PB5 Low Energy Timer LETIM1, output channel 0. 0: PA6 4: PB6 Low Energy Timer LETIM1, output channel 1. 1: PB14 4: PA0 2: PE15 LEUART0 Receive input.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions Alternate Functionality PCNT2_S1IN PRS_CH0 LOCATION 0-3 4-7 2: PB14 3: PF11 0: PA0 3: PF2 Description Pulse Counter PCNT2 input number 1. Peripheral Reflex System PRS, channel 0. PRS_CH1 0: PA1 Peripheral Reflex System PRS, channel 1. PRS_CH2 1: PF5 Peripheral Reflex System PRS, channel 2. PRS_CH3 3: PA0 Peripheral Reflex System PRS, channel 3. PRS_CH4 2: PF1 Peripheral Reflex System PRS, channel 4.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions Alternate Functionality LOCATION 0-3 4-7 Description QSPI0_DQ2 1: PA4 Quad SPI 0 Data 2. QSPI0_DQ3 1: PA5 Quad SPI 0 Data 3. QSPI0_DQ4 1: PB3 Quad SPI 0 Data 4. QSPI0_DQ5 1: PB4 Quad SPI 0 Data 5. QSPI0_DQ6 1: PB5 Quad SPI 0 Data 6. QSPI0_DQ7 1: PB6 Quad SPI 0 Data 7. QSPI0_DQS 1: PE15 Quad SPI 0 Data S. QSPI0_SCLK 1: PE14 Quad SPI 0 Serial Clock.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions Alternate Functionality TIM3_CC2 LOCATION 0-3 4-7 0: PA15 4: PA2 2: PE5 5: PA5 Description Timer 3 Capture Compare input / output channel 2. 3: PE7 TIM4_CC0 2: PF5 Timer 4 Capture Compare input / output channel 0. TIM5_CC0 1: PE7 Timer 5 Capture Compare input / output channel 0. TIM5_CC1 0: PE5 6: PF10 Timer 5 Capture Compare input / output channel 1. TIM5_CC2 0: PE6 6: PF11 Timer 5 Capture Compare input / output channel 2.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions Alternate Functionality US1_CS LOCATION 0-3 4-7 2: PF1 Description USART1 chip select input / output. US1_CTS 5: PB13 USART1 Clear To Send hardware flow control input. US1_RTS 5: PB14 USART1 Request To Send hardware flow control output. 5: PA0 USART1 Asynchronous Receive. 6: PA2 USART1 Synchronous mode Master Input / Slave Output (MISO). 5: PF2 USART1 Asynchronous Transmit. Also used as receive input in half duplex communication.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions Alternate Functionality LOCATION 0-3 4-7 VDAC0_OUT0 / OPA0_OUT 0: PB11 VDAC0_OUT1 / OPA1_OUT 0: PB12 WTIM0_CC0 1: PA6 6: PB3 0: PE5 4: PF0 WTIM0_CC1 WTIM0_CC2 Digital to Analog Converter DAC0 output channel number 1. 4: PF1 6: PB5 WTIM0_CDTI2 WTIM1_CC0 Digital to Analog Converter DAC0 output channel number 0.
WGM160P Wi-Fi® Module Data Sheet Pin Descriptions Alternate Functionality Location Priority ETH_RMIITXEN 0: PA0 High Speed TIM0_CC0 3: PB6 Non-interference US2_CLK 5: PF2 High Speed US2_CS 5: PF5 High Speed US2_RX 5: PF1 High Speed US2_TX 5: PF0 High Speed silabs.com | Building a more connected world. Preliminary Rev. 0.
WGM160P Wi-Fi® Module Data Sheet Package Specifications 8. Package Specifications 8.1 Package Outline Figure 8.1. WGM160P Package Outline silabs.com | Building a more connected world. Preliminary Rev. 0.
WGM160P Wi-Fi® Module Data Sheet Package Specifications 8.2 Recommended PCB Land Patterns Figure 8.2. WGM160P22A Land Pattern silabs.com | Building a more connected world. Preliminary Rev. 0.
WGM160P Wi-Fi® Module Data Sheet Package Specifications Figure 8.3. WGM160P22N Land Pattern silabs.com | Building a more connected world. Preliminary Rev. 0.
WGM160P Wi-Fi® Module Data Sheet Package Specifications 8.3 Package Marking ANT WGM160Pxxxxxxx Model: WGM160P22A Certification Marks YYWWTTTTTT www.silabs.com Pin#1 Location WGM160Pxxxxxxx Model: WGM160P22N Certification Marks YYWWTTTTTT www.silabs.com Pin#1 Location Figure 8.4.
WGM160P Wi-Fi® Module Data Sheet Soldering Recommendations 9. Soldering Recommendations The WGM160P is compatible with industrial standard reflow profile for Pb-free solders. The reflow profile used is dependent on the thermal mass of the entire populated PCB, heat transfer efficiency of the oven, and particular type of solder paste used. • • • • • • Refer to technical documentations of particular solder paste for profile configurations. Avoid using more than two reflow cycles.
WGM160P Wi-Fi® Module Data Sheet Tape and Reel Dimensions 10. Tape and Reel Dimensions All dimensions in mm unless otherwise indicated. Figure 10.1. Carrier Tape Dimensions All dimensions in mm unless otherwise indicated. Figure 10.2. Reel Dimensions silabs.com | Building a more connected world. Preliminary Rev. 0.
WGM160P Wi-Fi® Module Data Sheet Certifications 11. Certifications This section details certification status of the module in various regions. The manufacturer address for the modules is: SILICON LABORATORIES FINLAND OY Alberga Business Park, Bertel Jungin aukio 3, 02600 Espoo, Finland 11.1 Qualified External Antenna Types This device has been certified with an integrated chip antenna as well as external antennas connected to either RF port or both. The required antenna impedance is 50 Ω. Table 11.1.
WGM160P Wi-Fi® Module Data Sheet Certifications 11.3 FCC 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 undesirable operation. Any changes or modifications not expressly approved by Silicon Labs could void the user’s authority to operate the equipment.
WGM160P Wi-Fi® Module Data Sheet Certifications 11.4 ISED Canada ISED This radio transmitter (IC: 5123A-WGM160P) has been approved by Industry Canada to operate with the antenna types listed above, with the maximum permissible gain 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. This device complies with ISED license-exempt RSS standards.
WGM160P Wi-Fi® Module Data Sheet Certifications ISED (Français) Industrie Canada a approuvé l’utilisation de cet émetteur radio (IC: 5123A-WGM160P) en conjonction avec des antennes de type dipolaire à 2.14dBi ou des antennes embarquées, intégrée au produit. L’utilisation de tout autre type d’antenne avec ce composant est proscrite. Ce composant est conforme aux normes RSS, exonérées de licence d'Industrie Canada. Son mode de fonctionnement est soumis aux deux conditions suivantes: 1.
WGM160P Wi-Fi® Module Data Sheet Certifications 11.5 Locating the Module Close to Human Body When using the module in an application where the radio is located close to human body, the human RF exposure must be evaluated. FCC, IC, and CE all have different standards for evaluating the RF exposure, and because of this, each standard will require a different minimum separation distance between the module and human body.
WGM160P Wi-Fi® Module Data Sheet Revision History 12. Revision History Revision 0.3 Feb 2019 • Updated top-level device details throughout document. • Removed software details from 1. Key Features (moved to 6. Gecko OS Features). • Updated 2. Ordering Information to expand all OPN details. • Corrected details in Figure 3.1 WGM160P Block Diagram on page 6. • Updated all tables in 4. Electrical Specifications with latest nomenclature and characterization data. • Added 5.3 Example Schematic. • Added 6.
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: WGM160P Hardware Design User’s Guide The purpose of this guide is to help users design WiFi applications using WGM160P. This guide includes information for schematics and layout. Some options available with WGM160P hardware are not available with all software architectures, so the pin features versus software are detailed. silabs.com | Building a more connected world. KEY FEATURES • Schematics guidelines • Package information • Layout guideline Rev. 0.
: Table of Content 1 Table of Content Contents 1 Table of Content ................................................................................................................................................................................. 1 2 WGM160P Pinout ............................................................................................................................................................................... 2 3 WGM160P pin description ....................
: WGM160P Pinout 2 WGM160P Pinout WGM160P is a 23.8 mm x 14.2 mm x 2.2mm PCB module. The diagram below describes pinout (top view) As shown below, insert Figure 7.1 WGM160 Device Pinout from WGM160P Data Sheet Figure 2.1 WGM160P Device Pinout silabs.com | Building a more connected world. Rev. 0.
: WGM160P pin description 3 WGM160P pin description 3.1 Pins table As shown below, insert Table 7.1 WGM160 Device Pinout from WGM160P Data Sheet Table 3.1 WGM160P Pin Description silabs.com | Building a more connected world. Rev. 0.
: WGM160P pin description 3.2 Power pin The WGM160P module is supplied through VBAT pin. There is no need for external bypass capacitors as ICs decoupling is performed within the module. Note that although VBAT supply is variable, the maximum TX output power can be achieved only when supply is set to 3.3V or above. Note that pin VBUS cannot be used to supply the module. 3.3 RESETn pin WGM160P module is reset by driving the RESETn pin low.
: WGM160P pin description For WGM160P applications requiring Ethernet, a 50MHz reference clock is required. This can be achieved either by connecting 50MHz external clock to module pin PB13 or by connecting a 50MHz crystal oscillator between pins PB13 (HFXTAL_P) and PB14 (HFXTAL_N). As shown below, insert Table 4.13 High Frequency Crystal Oscillator of EFM32GG11 datasheet Table 3.4 WGM160P 50MHz High Frequency Crystal Oscillator 3.6 PTA pins In case a RF transceiver using the same 2.
: WGM160P pin description 3.7 Multifunction pins The multifunction pins refer to WGM160P pins directly connected to the embedded MCU EFM32GG11. 3.7.1 Software architecture consideration The WGM160P module has a lot of flexibility regarding configuration of these MCU pins, as described in the data sheet, but all software architectures do not support all functions. 3.7.1.1 Bootloader All devices come pre-programmed with a UART bootloader.
: WGM160P pin description WGM160P GG11 Pin Port Default Function GPIO1 (GOS_ GPIO_x) UART2 (GOS_ UART_x) SPI3 (GOS_ SPI_x) Bulk sflash MISO or 4 UART RX (logging) 9 UART1 RX SPI1 MISO 24 PB4 25 PB5 UART RTS (Commands) 10 26 PB6 UART CTS (Commands) 11 28 PB13 GPIO 29 PB14 31 I2C (GOS_ I2C_x) ADC PWM Ethernet (GOS_ (GOS_ (RMII) ADC_x) PWM_x) 12 9 UART0 RTS - 10 UART0 CTS 1 11 12 - - GPIO 13 2 - PB11 I2C Master SDA 14 I2C0 SDA - 12 32 PB12 I2C Mas
: Application schematics recommendations 4 Application schematics recommendations 4.1 Power supply WGM160P consists of two main blocks, the microcontroller EFM32GG11 and the Wi-Fi network co-processor WF200. The microcontroller contains an internal DC-DC converter that powers both the microcontroller core and the WiFi chip with a lower supply voltage to reduce overall power consumption. All the internal supplies are connected together and supplied by module pin VBAT.
: Typical applications schematics 5 Typical applications schematics The diagrams below show a simple application schematic with WGM160P and its internal antenna. Figure 5.1 WFM160PX22KGA2 schematics silabs.com | Building a more connected world. Rev. 0.
: Layout recommendations 6 Layout recommendations 6.1 Generic RF Layout Considerations For custom designs, use the same number of PCB layers as are present in the reference design whenever possible. Deviation from the reference PCB layer count can cause different PCB parasitic capacitances, which can detune the matching network from its optimal form.
: Layout recommendations 6.2 RF-pads including the diversity port and external antennas With WGM160P variants without a chip antenna, the important properties are mainly to ensure that WGM160P ground pads are well connected to PCB ground plane to optimize thermal conductivity and to prevent unwanted emissions due to ground currents. The RF pads and RF traces conducting the RF signal should be dimensioned to have a characteristic impedance of 50 ohms.
: Layout recommendations Figure 6.3 Details of the antenna ground clearance Figure 6.4 Details about board dimensions and module placement Any metallic objects in close proximity to the antenna will distort the antenna electromagnetic fields and will cause the antenna center frequency to shift, reducing the performance.
: Layout recommendations Figure 6.5 Enclosure clearance recommendations Because the application board is part of the antenna circuit, its dimensions have an effect on the antenna efficiency and thus achievable range. Narrower ground planes can be used but will result in compromised RF performance. silabs.com | Building a more connected world. Rev. 0.
: Recommendations for certification 7 Recommendations for certification 7.1 Module certification regarding port without integrated antenna WGM160P has been certified with an integrated chip antenna as well as external antennas connected to either RF port or both. The required antenna impedance is 50 Ω. Qualified external antenna type Antenna type Maximum gain Connectorized coaxial dipole 2.
: Package outline 8 Package outline Figure 8.1 WGM160PX22KGA2 Package outline silabs.com | Building a more connected world. Rev. 0.
: Recommended PCB land pattern 9 Recommended PCB land pattern Figure 9.1 WGM160PX22KGA2 / WGM160P022KGA2 recommended land footprint For WGM160P modules without antenna, there is no need of PCB antenna clearance. silabs.com | Building a more connected world. Rev. 0.
: Recommended PCB land pattern Figure 9.2 WGM160PX22KGN2/ WGM160P022KGN2 recommended land footprint silabs.com | Building a more connected world. Rev. 0.