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G6

Hardware User Guide

Copyright © Neoway Technology Co., Ltd

vi

About This Document

Scope

This document is applicable to G6 series.

It defines the features, indicators, and test standards of the G6 module and provides reference for the
hardware design of each interface.

Audience

This document is intended for

system engineers (SEs), development engineers, and test engineers.

Change History

Issue

Date

Changes

Changed By

1.0

2017-06

Initial draft

Tian

2.0

2018-08



Modified the supply voltage range



Modified basic features



Added description of nRESET, EXT_INT0, and
antenna interfaces



Add description of work modes



Added current consumption

Zhuo JianZheng

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Содержание G6 Series

Страница 1: ...G6 Hardware User Guide Issue 2 0 Date 2018 10 11 Neoway Product Document ...

Страница 2: ...NSTRUCTIONS FOR CUSTOMERS TO DESIGN THEIR APPLICATIONS PLEASE FOLLOW THE RULES AND PARAMETERS IN THIS GUIDE TO DESIGN AND COMMISSION NEOWAY WILL NOT TAKE ANY RESPONSIBILITY OF BODILY HURT OR ASSET LOSS CAUSED BY IMPROPER OPERATIONS THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE DUE TO PRODUCT VERSION UPDATE OR OTHER REASONS EVERY EFFORT HAS BEEN MADE IN PREPARATION OF THIS DO...

Страница 3: ... 12 4 2 Reference Design of Active GNSS Antenna 14 4 3 Recommended Antenna 15 5 Electric Feature and Reliability 16 5 1 Electric Features 16 5 1 1 Extreme Operating Conditions 16 5 1 2 Recommended Operating Conditions 16 5 1 3 Current Features 16 5 2 Temperature Features 17 5 3 ESD Protection 17 6 Mechanical Features 18 6 1 Dimensions 18 6 2 Label 19 6 3 Pack 19 7 Mounting G6 onto the Application ...

Страница 4: ...G6 Hardware User Guide Copyright Neoway Technology Co Ltd iii ...

Страница 5: ...t timing of G6 9 Figure 3 4 UART connection 10 Figure 3 5 1PPS timing 11 Figure 3 6 Internal circuit 11 Figure 4 1 L network 12 Figure 4 2 Split capacitor network 12 Figure 4 3 Pi network 13 Figure 4 4 Recommended RF PCB design 13 Figure 4 5 Reference design of active antenna 14 Figure 6 1 G6 dimensions Unit mm 18 Figure 7 1 Bottom dimensions of G6 20 Figure 7 2 Recommended PCB foot print Unit mm ...

Страница 6: ...nition 5 Table 2 2 Pin Description 5 Table 3 1 Power and clock status and current in different modes 8 Table 4 1 Recommended Antenna 15 Table 5 1 Extreme operating conditions of G6 16 Table 5 2 Recommended operating conditions of G6 16 Table 5 3 Current features 16 Table 5 4 G6 temperature features 17 Table 5 5 G6 ESD protection 17 ...

Страница 7: ...e for the hardware design of each interface Audience This document is intended for system engineers SEs development engineers and test engineers Change History Issue Date Changes Changed By 1 0 2017 06 Initial draft Tian 2 0 2018 08 Modified the supply voltage range Modified basic features Added description of nRESET EXT_INT0 and antenna interfaces Add description of work modes Added current consu...

Страница 8: ...that could cause fatal device damage or even bodily damage Means reader be careful In this situation you might perform an action that could result in module or product damages Means note or tips for readers to use the module Related Documents Neoway_G6_Datasheet Neoway_G6_Product_Specifications Neoway_G6_AT_Command_Mannual Neoway_G6_EVK_User_Guide ...

Страница 9: ...high sensitivity low power consumption and cost effective positioning navigation G6 includes a few of variants that support different GNSS systems Table 1 1 List the variants and systems they support Table 1 1 Variants and GNSS systems Function Issue GPS BDS GLNASS Support GAGAN G6 G6 A1 G6 B1 G6 C1 G6 D1 1 2 Block Diagram G6 consists of the following functionality modules that work together to ac...

Страница 10: ...ral Controller RX1 TX1 RF_IN nRESET EXT_INT0 1PPS VCC_RF RX2 TX2 1 3 Basic Features Parameter Description Values Remarks Minimum Typical Maximum Unit Accuracy open air Horizontal 3 m Vertical 4 5 m Velocity 0 1 m s Channels Acquisition 72 Tracking 72 TTFF 130dBm Cold start 28 s Hot start 1 s Re acquisition 1 s Sensitivity Acquisition for cold start up 147 dBm ...

Страница 11: ...dBm Tracking 163 dBm Baud rate 4800 9600 230400 bps 9600Bps by default Time update frequency 1 10 Hz 1Hz by default Operating voltage VCC 2 7 3 3 3 6 V V_BCKP 1 4 3 3 3 0 3 6 V Current instrument Acquisition 30 mA 3 3 V power supply Tracking 28 mA 3 3 V power supply Standby 20 μA 3 3 V backup power supply Certification approval RoHS CE ...

Страница 12: ...C package Power Supply UART 1PPS 2 1 Pad Layout Figure 2 1 shows the pad layout of G6 Figure 2 1 Pin definition of G6 nRESET EXIN_INT0 NC 1PPS NC NC NC V_ANT NC NC TX2 RX2 TX1 RX1 V_BCKP VCC GND 1 2 3 4 5 6 7 8 G6 Top View POWER GND NC ANT UART RESET OTHERS 9 24 23 22 21 20 19 18 10 11 17 16 15 14 12 13 NC NC GND VCC_RF GND RF_IN GND ...

Страница 13: ...2 0 V 3 6 V VIL 0 3 V 0 8 V VOH 2 4 V 3 3 V VOL 0 V 0 4 V Table 2 2 Pin Description Signal Pin I O Function Level Feature Remarks Power Interfaces VCC 23 PI Main power supply input 2 7 V 3 6 V TYP 3 3 V Supply at most 100mA V_BCKP 22 PI Backup power supply input 1 4 V 3 6 V TYP 3 3 3 0 V Inorm 20μA Supply power for RTC and backup RAM Leave this pin unconnected if it is not used VCC_RF 9 PO Power s...

Страница 14: ...e chapter 4 UART Interface TX1 20 DO Data transmitting P1 By default UART1 is enabled and UART2 is disabled For details see section 3 4 Used for data transmission Leave this pin unconnected if it is not used RX1 21 DI Data receiving P1 TX2 18 DO Data transmitting P1 RX2 19 DI Data receiving P1 Other Interfaces V_ANT 8 DI Power supply for active antenna 1PPS 3 DO 1 pulse per second signal P1 Connec...

Страница 15: ... pins are connected to the ground Power pins should be used respectively following rules below VCC VCC is the main power supply of the module Its input voltage ranges from 2 7 V to 3 6 V and the preferable value is 3 3 V This pin is used to supply power for the internal baseband RF and LNA of the module The performance of power supply is a critical path to module s performance and stability It is ...

Страница 16: ...able to supply power all the time after VCC is shut down Standby mode After VCC is shut down the module enters standby mode The power and clocks of all functionalities are disabled except RTC backup zone The module enters position fix mode after VCC is powered up To support hot start and warm start V_BCKP must be able to supply power after VCC is shut down It is recommended to keep V_BCKP able to ...

Страница 17: ... Refer to the following designs To reset the module through high level refer to Figure 3 2 Figure 3 1 Reset controlled by button GNSS Module nRESET S 1 kΩ R1 TVS Figure 3 2 Reset circuit with triode separating GNSS Module nRESET 4 7kΩ 47kΩ R2 R3 Figure 3 3 shows the reset timing of G6 Figure 3 3 Reset timing of G6 VCC nRESET Inactive Active UART 1ms ...

Страница 18: ...de baudrate and UART status through commands For details see Neoway_GNSS_Receiver_Commands_Manual G6 supports baudrate ranging from 4800bps to 230400bps The default baud rate is 9600bps Data format 1 start bit 8 data bits 1 stop bit no checksum bit Figure 3 4 shows the connection of UART interface If the UART does not match the logic voltage of the MCU add a level shifting circuit outside of G6 Fi...

Страница 19: ...s the external interrupt input signal It works at low level to wake up G6 from sleep mode or standby mode 3 7 V_ANT V_ANT is the input signal of active antenna Figure 3 6 shows the internal circuit if this pin If an active antenna is used see reference design in 4 2 If a passive antenna is used leave this pin unconnected Figure 3 6 Internal circuit LNA SAW GNSS Baseband GNSS Module RF_IN V_ANT ...

Страница 20: ... Figure 3 6 shows the GNSS structure inside G6 Control the impedance of the traces between the pins and antenna to ensure the RF performance An impedance matching circuit such as L network split capacitor network and pi network is mandatory in between Pi network is recommended Figure 4 1 L network RF_IN GNSS Module Z1 Z2 D1 Figure 4 2 Split capacitor network RF_IN GNSS Module Z1 Z2 D1 Z3 ...

Страница 21: ...rse breakdown voltage of the TVS is greater than 10 V above 15 V is recommended G6 embeds an LNA and no external LNA is required if a passive GNSS antenna is used PCB Design Cautions Lay copper foil around RF connector Dig as many ground holes as possible on the copper to ensure lowest grounding impedance The trace between G6 and the antenna connector should be as short as possible Control the tra...

Страница 22: ...s For matching circuit design between GNSS interface and antenna refer to design cautions in 4 1 G6 embeds an inductor that is used to supply power for active antenna Do not connect any capacitor between antenna pin and antenna in series when V_ANT supplies power for the active antenna Otherwise G6 will fail to supply power for the active antenna PCB Design Cautions For cautions of PCB design betw...

Страница 23: ...variants Bandwidth 5MHz Polarization Right Hand Circular Polarization RHCP Voltage Standing Wave Ratio VSWR 1 5 Gain 2 dBi Efficiency 40 Active Antenna Frequency point GPS 1575 42MHz BDS 1561 098MHz GLONASS 1602 5625MHz The antenna frequency point corresponds to the configurations of module variants Bandwidth 5MHz Polarization Right Hand Circular Polarization RHCP Voltage Standing Wave Ratio VSWR ...

Страница 24: ...5 V If the voltage is too low G6 might fail to start If the voltage is too high or there is a voltage burst during the startup G6 might be damaged permanently 5 1 2 Recommended Operating Conditions Table 5 2 Recommended operating conditions of G6 Parameter Description Minimum Value Typical Value Maximum Value Unit VCC Main power supply 2 7 3 3 3 6 V V_BCKP Backup power supply 1 4 3 3 3 0 3 6 V 5 1...

Страница 25: ...its RF performance indicators might be worse but it can still work properly 5 3 ESD Protection Electronics need to pass ESD tests The following table shows the ESD capability of key pins of this module It is recommended to add ESD protection based on the application scenarios to ensure product quality when designing a product Humidity 45 Temperature 25 Table 5 5 G6 ESD protection Testing Point Con...

Страница 26: ...G6 Hardware User Guide Copyright Neoway Technology Co Ltd 18 6 Mechanical Features 6 1 Dimensions Figure 6 1 G6 dimensions Unit mm ...

Страница 27: ...reference The silk screen printing must be clear No blur is allowed The material and surface finishing must comply with RoHS directives 6 3 Pack G6 modules are packed in sealed bags on delivery to guarantee a long shelf life Follow the same package of the modules again in case of opened for any reasons ...

Страница 28: ... G6 onto the Application Board G6 is introduced in 24 pin LCC package This chapter describes G6 foot print recommended PCB design and SMT information to guide users how to mount the module onto application PCB board 7 1 Bottom Dimensions Figure 7 1 Bottom dimensions of G6 ...

Страница 29: ...nds on the solder paste volume and the PCB flatness Do not use the kind of solder paste different from our module technique The melting temperature of solder paste with lead is 35 C lower than that of solder paste without lead It is easy to cause voiding for LCC inside G6 after second reflow soldering When using only solder pastes with lead please ensure that the reflow temperature is kept at 220 ...

Страница 30: ...e 40 90 s Peak temperature 235 250 C Neoway will not provide warranty for heat responsive element abnormalities caused by improper temperature control For information about cautions in G6 storage and mounting refer to Neoway Module Reflow Manufacturing Recommendations When manually desoldering G6 use heat guns with great opening adjust the temperature to 250 degrees depending on the type of the so...

Страница 31: ... explosion such as gasoline stations oil refineries etc Please follow the requirements below in application design Do not disassemble the module without permission from Neoway Otherwise we are entitled to refuse to provide further warranty Please design your application correctly by referring to the HW design guide document and our review feedback on your PCB design Please connect the product to a...

Страница 32: ...tic Discharge GPS Global Positioning System GNSS Global Navigation Satellite System GGA GPS Fix Data GLONASS Global Navigation Satellite System GSV GNSS Satellites in View I O Input output LNA Low Noise Amplifier MSAS Multi Functional Satellite Augmentation System NMEA National Marine Electronics Association PPS Pulse Per Second PRN Pseudo Random Noise Code QZSS Quasi Zenith Satellite System RHCP ...

Страница 33: ...G6 Hardware User Guide Copyright Neoway Technology Co Ltd 25 TTFF Time To First Fix UART Universal Asynchronous Receiver Transmitter ...

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