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FIBOCOM FG621-LA Series Hardware Guide

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7 RF Interface

FG621-LA series module provides two antenna interfaces, i.e., main antenna interface and diversity

antenna interface. The pin definition is shown in the following table:

Table 7-1 Antenna interface

Pin Name

I/O

Pin#

Description

ANT_DIV

127

Diversity antenna

ANT_MAIN

107

Main antenna

7.1 Operating Bands

Table 7-2 Operating band

Band

Mode

Tx (MHz)

Rx (MHz)

Band 2

LTE FDD/WCDMA

1850- 1910

1930-1990

Band 4

LTE FDD/WCDMA

1710-1755

2110-2155

Band 5

LTE FDD/WCDMA

824-849

869-894

Band 7

LTE FDD

2500-2570

2620-2690

Band 12

LTE FDD

698-716

728-746

Band 13

LTE FDD

777-787

746-756

Band 28

LTE FDD

703-748

758-803

Band 66

LTE FDD

1710-1780

2110 - 2200

Band 40

LTE TDD

2300-2400

7.2 Transmission Power

The RF output power of FG621-LA series module is shown as follows:

Table 7-3 Transmission power

Mode

Band

Tx Power (dBm)

Description

WCDMA

Band 2

23.5±2

Band 4

23.5±2

Band 5

23.5±2

LTE FDD

Band 2

23±2

UL 10MHz Bandwidth, 1 RB

Band 4

23±2

UL 10MHz Bandwidth, 1 RB

Содержание FG621-LA Series

Страница 1: ...FIBOCOM FG621 LA Series Hardware Guide Version V0 0 1 Date 2020 09 29...

Страница 2: ...ut Fibocom Wireless Inc written authorization All Rights Reserved FIBOCOM FG621 LA Series Hardware Guide Page 2 of 57 Applicability Type No Product Model Description 1 FG621 LA 00 LPDDR2 1Gb SPI NAND...

Страница 3: ...y form Notice The document is subject to update from time to time owing to the product version upgrade or other reasons Unless otherwise specified the document only serves as the user guide All the st...

Страница 4: ...Function 14 4 Electrical Characteristics 21 4 1 Power 21 4 2 Power Supply 21 4 3 Power Output 23 4 4 Power Consumption 23 5 Functional Interface 26 5 1 Control Interface 26 5 1 1 Power on Off 26 5 1 1...

Страница 5: ...cation Circuit 38 5 10 SPI Interface 39 5 11 GPIO Interface 39 6 Low Power Consumption 41 6 1 Flight Mode 41 6 2 Sleep Mode 41 7 RF Interface 42 7 1 Operating Bands 42 7 2 Transmission Power 42 7 3 Re...

Страница 6: ...Reserved FIBOCOM FG621 LA Series Hardware Guide Page 6 of 57 9 4 SMT Patch 51 9 5 Packaging and Storage 51 10 Certification 52 11 OEM Integrators Installation Manual 52 12 Appendix 55 12 1 Terms and A...

Страница 7: ...sed by the user s misuse Road safety first When you drive do not use the handheld devices even if it has a hand free feature Please stop and call Please turn off the mobile device before boarding The...

Страница 8: ...erence occurs when it is near televisions radios computers or other electronic devices Keep the mobile device away from flammable gases Turn off the mobile device when you get near to gas stations oil...

Страница 9: ...mode FG621 LA is designed with LGA package and is applicable for various scenarios such as CPE VR AR gateway internet TV set top box and intelligent monitoring 2 2 Product Specification Table 2 1 Prod...

Страница 10: ...T 4 PCM I2 C SDIO SPI GPIOs RESET_N PWRKEY ADC 2 Software Protocol stack IPV4 and IPV6 AT command 3GPP TS 27 007 and 27 005 and proprietary FIBOCOM AT Firmware update USB Voice service VoLTE AMR DTMF...

Страница 11: ...where the module can perform storage without being damaged or powered on 2 3 Functional Diagram Functional diagram shows the main hardware features of FG621 LA series module including baseband and RF...

Страница 12: ...57 Baseband PMIC LPDDR2 Transceiver VDD_EXT USB U SIM PCM I2 C SPI UART SDIO GPIOs STATUS ADCs RESET_N PWRKEY VBAT_BB VBAT_RF TRX Blocks Control Control IQ ANT_MAIN ANT_DIV TX RX 26M XO NAND Figure 2...

Страница 13: ...Rights Reserved FIBOCOM FG621 LA Series Hardware Guide Page 13 of 57 3 Pin Description 3 1 Pin Distribution FG621 LA series module is available with a total of 299 LGA pins The top view of the pin di...

Страница 14: ...1 35V BT function enabling pin Reserved 5 WLAN_PWR_EN DO VOHmin 1 35V VOLmax 0 45V WLAN power supply enabling Reserved 24 USIM_GND G U SIM ground signal directly connected to the main ground 25 USIM_D...

Страница 15: ...0 6V VIHmin 1 2V VIHmax 2 0V OTG identification signal Reserved 42 I2C_SDA OD 1 8V domain I2 C interface data signal pulled up inside the module 43 I2C_SCL OD 1 8V domain I2 C interface clock signal p...

Страница 16: ...ier detection Reserved 60 TXD DO VOLmax 0 45V VOHmin 1 35V Module Transmit data Reserved 61 RI DO VOLmax 0 45V VOHmin 1 35V Module output ring indicator 62 DTR DI VILmin 0 3V VILmax 0 6V VIHmin 1 2V V...

Страница 17: ...O Main antenna 127 ANT_DIV AI Diversity antenna 136 DBG_RXD DI VILmin 0 3V VILmax 0 6V VIHmin 1 2V VIHmax 2 0V DEBUG serial port receiving 137 DBG_TXD DO VOLmax 0 45V VOHmin 1 35V DEBUG serial port se...

Страница 18: ...default configurable by software 151 W_DISABLE DI VILmin 0 3V VILmax 0 6V VIHmin 1 2V VIHmax 2 0V Module flight mode control pull up by default low level can make the module enter flight mode 152 I2S_...

Страница 19: ...ignal Reserved 168 VDD_EXT PO Vnorm 1 85V IOmax 50mA 1 85V power output 169 WLAN_SLP_CL K DO VOLmax 0 45V VOHmin 1 35V WLAN sleep clock signal Reserved 170 NET_STATUS DO VOLmax 0 45V VOHmin 1 35V Modu...

Страница 20: ...184 18 7 191 196 202 208 214 299 4 6 9 11 12 14 15 18 23 37 38 40 41 72 74 91 95 101 113 115 119 134 13 5 176 179 180 182 183 1 85 186 188 190 192 19 5 197 201 209 213 NC Note Keep the unused pins flo...

Страница 21: ...V nominal value 3 8V VDD_EX T PO 168 Module digital level 1 85V output 50mA VDD_2V 8 PO 162 Level output to external circuit 2 8V output 200mA GND G 10 13 16 17 24 30 31 35 39 44 45 54 55 63 64 69 70...

Страница 22: ...g capacity of VBAT must be not less than 2 0A 1uF 100nF Digital signal noise Filter clock and digital signal interference 33pF 850MHz 900 MHz bands Filter low band RF interference 8 2pF 1800 1900 2100...

Страница 23: ...rnal RF or other circuits with an output current of 200mA Leave the signal floating if no use The logic level of VDD_EXT and VDD_2V8 is defined as follows Table 4 3 VDD_EXT and VDD_2V8 logic level Par...

Страница 24: ...DRX9 USB wakeup 39 FDD LTE Paging Cycle 32 USB wakeup 43 Paging Cycle 64 USB wakeup 42 Paging Cycle 128 USB wakeup 41 Paging Cycle 256 USB wakeup 40 TDD LTE Paging Cycle 32 USB wakeup 43 Paging Cycle...

Страница 25: ...ption combination of fg621 under the maximum bandwidth is shown in the table below Table 4 5 2CA power consumption 2CA Typical Combination Condition Tx band FRB Data Transfer Typical Current mA 2A 4A...

Страница 26: ...power off mode pull down PWRKEY for at least 1 6s 2s 3s recommended and then release it the module will power on when the module is in operating mode pull down PWRKEY for at least 2 1s 3s 8s recommen...

Страница 27: ...hat the time interval between powering up VBAT and pulling down PWRKEY pin should be not less than 30ms It takes about 30s to power on Other operations such as power off reset etc can be performed onl...

Страница 28: ...mmand to shut down the module make sure that the PWRKEY pin is always at the high level after the shutdown command is executed otherwise the module will automatically power on again 3 During the shutd...

Страница 29: ...reset timing is shown as follows Figure 5 7 Reset timing Note RESET_N is a sensitive signal so it is recommended to add a regulator capacitor close to the module The PCB layout should be kept away fro...

Страница 30: ...Mode Module Network Indicator Pin Level Status Indicator Light On Off Status Description 1 600ms High 600ms Low Quick flashing 600ms on 600ms off No SIM card SIM PIN Registering network T 15S Registe...

Страница 31: ...shown in the following table Table 5 6 U SIM pin definition Pin Name I O Pin Description USIM_DET DI 25 Detect U SIM card for Hot plug USIM_VDD PO 26 U SIM Power USIM_DATA IO 29 U SIM data signal USIM...

Страница 32: ...16 8P 220P SIM016 8P 220P card connector DET and POL are short connected when the card is inserted DET and POL are disconnected when there is no card The following is the reference design circuit When...

Страница 33: ...cting the USIM_DET pin state The U SIM hot plug function can be configured by the AT MSMPD command and the AT commands are shown in the following table Table 5 7 U SIM hot plug function configuration...

Страница 34: ...rference ability The length of signal line from the module to the U SIM card connector should not exceed 100mm Longer signal line reduces signal quality USIM_CLK and USIM_DATA signals should be ground...

Страница 35: ...l be grounded 5 5 UART Interface FG621 LA series module provides debug serial port which supports 115200bps baud rate for debugging and problem analysis The following table is the description of debug...

Страница 36: ...efinition The interface signals include the transmission clock PCM_CLK the frame synchronization signal PCM_SYNC and the input and output PCM_DIN PCM_DOUT Table 5 14 PCM interface definition Pin Name...

Страница 37: ...ies module provides PCM signal using domestic mainstream European E1 standard PCM_CLK is encoded by 2 048MHz clock and 16bit linear format PCM_SYNC is an 8kHz short pulse 488ns Figure 5 12 PCM_SYNC ti...

Страница 38: ...Pin Definition SD pin definition is shown in the following table Table 5 17 SD pin definition Pin Name I O Pin Description SD_VDD PO 46 SDIO power supply 3V by default SD_DATA0 IO 49 SDIO data signal...

Страница 39: ...I 77 DO SPI output signal SPI_MOSI 78 DI SPI input signal SPI_CS 79 DO SPI Chip Selection signal SPI_CLK 80 DO SPI clock signal 5 11 GPIO Interface FG621 AE 00 module reserves five GPIO interfaces for...

Страница 40: ...ge 40 of 57 Pin Name I O Pin Description Instructions for Use Port 2 chip by default GPIO_3 IO 159 General Purpose I O Port 3 Input pull up inside the chip by default GPIO_4 IO 161 General Purpose I O...

Страница 41: ...enters flight mode 2 AT command control AT CFUN 0 module enters flight mode AT CFUN 1 module enters normal mode 6 2 Sleep Mode AT commands and WAKEUP_IN signal are used to set the module into sleep mo...

Страница 42: ...ating Bands Table 7 2 Operating band Band Mode Tx MHz Rx MHz Band 2 LTE FDD WCDMA 1850 1910 1930 1990 Band 4 LTE FDD WCDMA 1710 1755 2110 2155 Band 5 LTE FDD WCDMA 824 849 869 894 Band 7 LTE FDD 2500...

Страница 43: ...Sensitivity Table 7 4 Receiving sensitivity Mode Band Typical Sensitivity Value of Main Antenna dBm Typical Sensitivity Value of Diversity Antenna dBm Description WCDMA Band 2 110 110 Band 4 109 5 10...

Страница 44: ...For built in antenna PIFA antennas or IFA antennas are recommended Antenna area 6mm high 10mm wide 100mm long Antenna radiation direction Omni_directional omnidirectional Gain and Directivity Antenna...

Страница 45: ...external environment For example the position of the antenna the space it occupies and the surrounding ground all may affect antenna performance In addition the RF cable connecting the antenna and th...

Страница 46: ...ght as possible to avoid vias and layers and avoid right angle and acute angle routing PCB routing should have a good reference ground to avoid other signal line from approaching the antenna A complet...

Страница 47: ...age range Parameter Description Min Typ Max Unit VBAT Power supply 0 3 3 8 4 7 V GPIO Level power supply voltage of digital I O 0 3 1 85 2 05 V 8 1 2 Operating Limiting Voltage Table 8 2 Operating lim...

Страница 48: ...shock test 85 40 500C Alternating test 25 70 93 24H r 14C Random vibration test 5 500Hz 4Grms Mechanical shock test 100G 11ms High temperature operating test 85 72H Low temperature operating test 40...

Страница 49: ...Inc written authorization All Rights Reserved FIBOCOM FG621 LA Series Hardware Guide Page 49 of 57 Table 8 5 ESD allowable discharge range Part Air Discharge Contact Discharge VBAT GND 10KV 5KV Anten...

Страница 50: ...Hardware Guide Page 50 of 57 9 Structure Specification 9 1 Product Appearance The product appearance of FG621 LA series module is shown in Figure 9 1 Figure 9 1 Product appearance 9 2 Structural Dime...

Страница 51: ...ring Pad and Stencil Design For PCB soldering pad and stencil design please refer to FIBOCOM FG621 Series SMT Design Guide 9 4 SMT Patch For SMT production process parameters and related requirements...

Страница 52: ...led and operating The modules should be transmitting and the evaluation should confirm that the module s intentional emissions are compliant i e fundamental and out of band emissions The host manufact...

Страница 53: ...mitter and obtaining a separate FCC authorization Manual Information to the End User The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove th...

Страница 54: ...ufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification If the grantee markets their product as being Part 1...

Страница 55: ...ulti rate bps Bits Per Second EGSM Extended GSM900 Band DRX Discontinuous Reception FDD Frequency Division Duplexing HSDPA High Speed Down Link Packet Access Imax Maximum Load Current LED Light Emitti...

Страница 56: ...IHmax Maximum Input High Level Voltage Value VIHmin Minimum Input High Level Voltage Value VILmax Maximum Input Low Level Voltage Value VILmin Minimum Input Low Level Voltage Value VImax Absolute Maxi...

Страница 57: ...tion Part 1 Conformance testing 3GPP TS 21 111 V10 0 0 USIM and IC card requirements 3GPP TS 51 011 V4 15 0 Specification of the Subscriber Identity Module Mobile Equipment SIM ME interface 3GPP TS 31...

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