Silicon Laboratories EFR32MG13 Скачать руководство пользователя страница 6 | Manualshive

Страница: 6 / 24

background image

3. Radio Board Block Summary

3.1 Introduction

This section gives a short introduction to the blocks of the BRD4174B Radio Board.

3.2 Radio Board Block Diagram

The block diagram of the BRD4174B Radio Board is shown in the figure below.

EFR32

Inverted-F

PCB

Antenna

2.4 GHz RF

UFL

Connector

LF

Crystal

32.768k

HF

Crystal

38.4M

Radio

Board

Connectors

8 Mbit

MX25R

Serial Flash

I2C

24AA024

Serial EEPROM

Matching

Network &

Output

Selection

GPIO

UART

Debug

Packet Trace

AEM

I2C

SPI

SPI

2.4 GHz RF

2.4 GHz

RF

SubGHz RF

Matching

Network &

DC Bias

SubGHz RF

SMA

Connector

EFR32

EFR32

Wireless SoC

Figure 3.1. BRD4174B Block Diagram

3.3 Radio Board Block Description

3.3.1 Wireless MCU

The BRD4174B Mighty Gecko Radio Board incorporates an EFR32MG13P733F512GM48 Wireless System-on-Chip featuring 32-bit
Cortex

®

-M4 with FPU core, 512 kB of flash memory, 64 kB of RAM, an integrated 2.4 GHz band, and an integrated sub-GHz ISM band

transceiver with output power up to 19 dBm. For additional information on the EFR32MG13P733F512GM48, refer to the EFR32MG13
data sheet.

3.3.2 LF Crystal Oscillator (LFXO)

The BRD4174B Radio Board has a 32.768 kHz crystal mounted. For details regarding the crystal configuration, refer to Application
Note "AN0016.1: Oscillator Design Considerations".

3.3.3 HF Crystal Oscillator (HFXO)

The BRD4174B Radio Board has a 38.4 MHz crystal mounted. For details regarding the crystal configuration, refer to Application Note
"AN0016.1: Oscillator Design Considerations".

3.3.4 Matching Network for Sub-GHz

The BRD4174B Radio Board incorporates a sub-GHz matching network which connects both the sub-GHz TX and RX pins of the
EFR32MG13 to the SMA connector to be able to transmit and receive with one antenna. The component values have been optimized
for the 169.4 MHz band RF performance and current consumption with 19 dBm output power.

For a detailed description of the matching network see section

4.2.1 Description of the Sub-GHz RF Matching

.

BRD4174B Reference Manual

Radio Board Block Summary

silabs.com

| Building a more connected world.

Rev. 1.00 | 6

«
...
4
5
6
7
8
...
»

Содержание EFR32MG13

Страница 1: ...l features from Expansion Boards With the supporting Simplicity Studio suite of tools developers can take advantage of graphical wireless application development mesh networking debug and packet trace and visual energy profiling and optimization The board also serves as an RF reference design for applications targeting 2 4 GHz and 169 MHz dual band wireless operation with 19 dBm output power RADIO...

Страница 2: ...1 Introduction 8 4 2 Schematic of the RF Matching Network 8 4 2 1 Description of the Sub GHz RF Matching 8 4 2 2 Description of the 2 4 GHz RF Matching 8 4 3 RF Section Power Supply 8 4 4 Bill of Materials for the sub GHz Matching 8 4 5 Bill of Materials for the 2 4 GHz Matching 9 4 6 Inverted F Antenna 9 5 Mechanical Details 11 6 EMC Compliance 12 6 1 Introduction 12 6 2 EMC Regulations for 169 4...

Страница 3: ...7 2 2 Radiated Measurements in the 2 4 GHz band 18 8 EMC Compliance Recommendations 19 8 1 Recommendations for 169 MHz ETSI EN 300 220 1 compliance 19 8 2 Recommendations for 2 4 GHz ETSI EN 300 328 compliance 19 8 3 Recommendations for 2 4 GHz FCC 15 247 compliance 19 9 Board Revision History 20 10 Errata 21 11 Document Revision History 22 silabs com Building a more connected world Rev 1 00 3 ...

Страница 4: ...ed to operate in the European ETSI 169 4 169 475 MHz band with an external whip antenna the 2 4 GHz section is designed to operate at the 2400 2483 5 MHz band with the on board printed antenna The matching networks are optimized for operating at 19 dBm output power To develop and or evaluate the EFR32 Mighty Gecko the BRD4174B Radio Board can be connected to the Wireless Starter Kit Main board to ...

Страница 5: ...B_VREG F7 PA1 VCOM RX_MISO F5 PA5 VCOM_ENABLE F3 PF3 DEBUG TDI F1 PF0 DEBUG TCK_SWCLK P45 NC P43 NC P41 NC P39 NC P37 PD15 DISP_ENABLE SENSOR_ENABLE F11 PF5 UIF_LED1 F13 PF7 UIF_BUTTON1 F15 PC8 DISP_SCLK F17 PD14 DISP_SCS F19 PB13 PTI SYNC F21 PB11 PTI CLK GND VMCU_IN VCOM CTS_SCLK PA2 P0 P201 Lower Row VCOM RTS_ CS PA3 P2 UIF_BUTTON0 PF6 P4 UIF_BUTTON1 PF7 P6 GND VRF_IN P35 PD15 DISP_ENABLE SENSO...

Страница 6: ...iver with output power up to 19 dBm For additional information on the EFR32MG13P733F512GM48 refer to the EFR32MG13 data sheet 3 3 2 LF Crystal Oscillator LFXO The BRD4174B Radio Board has a 32 768 kHz crystal mounted For details regarding the crystal configuration refer to Application Note AN0016 1 Oscillator Design Considerations 3 3 3 HF Crystal Oscillator HFXO The BRD4174B Radio Board has a 38 ...

Страница 7: ...a series 0 Ohm resistor which is not mounted by default For conducted measure ments through the UFL connector the series component to the antenna should be removed and the 0 Ohm resistor should be mounted see section 4 2 2 Description of the 2 4 GHz RF Matching for further details 3 3 8 Radio Board Connectors Two dual row 0 05 pitch polarized connectors make up the BRD4174B Radio Board interface t...

Страница 8: ...formance while in RX mode The matching includes a differential impedance matching circuitry a discrete balanced unbalanced transformer and a filter section The targeted output power is 19 dBm at 169 4 MHz 4 2 2 Description of the 2 4 GHz RF Matching The 2 4 GHz matching connects the 2G4RF_IOP pin to the on board printed Inverted F Antenna The 2G4RF_ION pin is connected to ground For higher output ...

Страница 9: ...l of Materials of the 2 4 GHz matching network of the BRD4174B Radio Board is shown in the following table Table 4 2 Bill of Materials for the BRD4174B 2 4GHz RF Matching Network Component Name Value Manufacturer Part Number L1 1 8 nH Murata LQP15MN1N8W02D L2 3 0 nH Murata LQP15MN3N0W02D C1 2 0 pF Murata GRM1555C1H2R0WA01D C2 1 0 pF Murata GRM1555C1H1R0WA01D 4 6 Inverted F Antenna The BRD4174B Rad...

Страница 10: ...re 4 2 Impedance and Reflection of the Inverted F Antenna of the BRD4174B Board Measured from the Matching Output BRD4174B Reference Manual RF Section silabs com Building a more connected world Rev 1 00 10 ...

Страница 11: ...d Filter 45 mm 30 mm 38 6 mm 4 4 mm 2 4 GHz Path Selection DC DC Supply Filter Caps Serial Flash DC DC Inductor Figure 5 1 BRD4174B Top View 24 mm 27 3 mm 28 6 mm 5 mm Interface Connector Interface Connector 15 mm Board Identification PAVDD Supply Selection Display Enable Selection WSTK Sensor Enable Selection Figure 5 2 BRD4174B Bottom View BRD4174B Reference Manual Mechanical Details silabs com ...

Страница 12: ...TSI limits are also applied both for conducted and radiated measurements 6 3 ETSI EN 300 328 Emission Limits for the 2400 2483 5 MHz Band Based on ETSI EN 300 328 the allowed maximum fundamental power for the 2400 2483 5 MHz band is 20 dBm EIRP For the unwan ted emissions in the 1 GHz to 12 75 GHz domain the specific limit is 30 dBm EIRP 6 4 FCC15 247 Emission Limits for the 2400 2483 5 MHz Band F...

Страница 13: ...mits can be estimated based on the conducted measurement by assuming the use of an antenna with 0 dB gain at the fundamental and the harmonic frequencies The overall applied limits are shown in the table below Table 6 2 Applied Limits for Spurious Emissions for the 2 4 GHz Band Harmonic Frequency Limit 2nd 4800 4967 MHz 37 6 dBm 3rd 7200 7450 5 MHz 37 6 dBm 4th 9600 9934 MHz 30 dBm 5th 12000 12417...

Страница 14: ...F_ON SUBGRF_OP was 3 3 V provided by the mainboard VBIAS through the discrete balun for details see the schematic of the BRD4174B The transceiver was operated in continuous carrier transmission mode The output power of the radio was set to 19 dBm The typical output spectrum is shown in the following figure Figure 7 1 Typical Output Spectrum of the BRD4174B As shown in the figure the fundamental is...

Страница 15: ...perated in continuous carrier transmission mode The output power of the radio was set to 19 dBm The typical output spectrum is shown in the following figure Figure 7 2 Typical Output Spectrum of the BRD4174B As shown in the figure the fundamental is slightly lower than 19 dBm and all of the unwanted emissions are under the 37 6 dBm ap plied limit Note The conducted measurement is performed by conn...

Страница 16: ...anes are illustrated in the figure below Figure 7 3 Illustration of Reference Planes with a Radio Board Plugged into the Wireless Starter Kit Mainboard Note The radiated measurement results presented in this document were recorded in an unlicensed antenna chamber Also the radi ated power levels may change depending on the actual application PCB size used antenna and so on Therefore the absolute le...

Страница 17: ...sured Radiated Powers in EIRP dBm Frequency EIRP dBm Orientation Margin dB Limit in EIRP dBm Fund 5 7 YZ H 23 4 29 1 2nd 49 3 XY H 15 4 33 9 3rd 63 9 YZ H 12 1 51 8 4th 55 6 XZ V 3 8 51 8 5th 65 4 YZ H 13 6 51 8 6th 57 6 YZ V 29 7 27 9 7th 56 4 YZ H 28 5 27 9 8th 51 4 XZ V 23 5 27 9 9th 66 6 YZ V 38 7 27 9 10th 66 9 YZ V 39 27 9 Signal level is below the Spectrum Analyzer noise floor As shown in t...

Страница 18: ...h and without mounted shielding can The results are shown in the tables below Table 7 2 Maximums of the Measured Radiated Powers in EIRP dBm Frequency EIRP dBm Orientation Margin dB Limit in EIRP dBm Fund 20 7 XZ H 9 3 30 2nd 48 2 XZ V 10 6 37 6 3rd 50 10 37 6 4th 50 10 30 5th 50 10 37 6 Signal level is below the Spectrum Analyzer noise floor Table 7 3 Maximums of the Measured Radiated Powers in E...

Страница 19: ... of the BRD4174B Mighty Gecko Radio Board with 19 dBm output power exceeds the 20 dBm limit of the ETSI EN 300 328 regulation due to the high antenna gain so reduction of the fundamental power is required by approximately 1 dB in order to comply The harmonic emissions are under the 30 dBm limit with a large margin Mounting a shielding can is required due to the sub GHz compliance but it is not req...

Страница 20: ...e The silkscreen marking on the board e g PCBxxxx A00 denotes the revision of the PCB The revision of the actual Radio Board is laser printed in the Board Info field on the PCB Also it can be read from the on board EEPROM BRD4174B Reference Manual Board Revision History silabs com Building a more connected world Rev 1 00 20 ...

Страница 21: ...10 Errata There are no known errata at present BRD4174B Reference Manual Errata silabs com Building a more connected world Rev 1 00 21 ...

Страница 22: ...11 Document Revision History Revision 1 00 June 2018 Initial document revision BRD4174B Reference Manual Document Revision History silabs com Building a more connected world Rev 1 00 22 ...

Страница 23: ... or express copyright licenses granted hereunder to design or fabricate any integrated circuits The products are not designed or authorized to be used within any Life Support System without the specific written consent of Silicon Labs A Life Support System is any product or system intended to support or sustain life and or health which if it fails can be reasonably expected to result in significan...

Страница 24: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Silicon Laboratories SLWRB4174B ...

Отзывы:

Нет отзывов

Похожие инструкции для EFR32MG13

Бренд: Garelick Страницы: 3

Бренд: AKM Страницы: 34

Бренд: ASROCK Страницы: 138

Бренд: AOpen Страницы: 105

Бренд: Quick Страницы: 32

Бренд: JETWAY Страницы: 38

Бренд: Microsemi Страницы: 15

Бренд: Tews Technologies Страницы: 26

Бренд: Advantech Страницы: 90

Бренд: Shuttle Страницы: 81

Бренд: Supero Страницы: 85

Бренд: Supermicro Страницы: 1

Бренд: Intersil Страницы: 10

Бренд: MSI Страницы: 445

CC85-CC2590EM Series

Бренд: Texas Instruments Страницы: 7

Бренд: Texas Instruments Страницы: 13

S870 EXTREME3QVL - LIST

Бренд: ASROCK Страницы: 3

Бренд: IEI Technology Страницы: 16

Бренды по названию

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Популярные бренды

Загрузить еще бренды