AT6558

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(ATGM336H-5N)
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== 模块型号 ==
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* ATGM336H-5N-'''11''', 9.7X10.1 尺寸,AT6558 芯片,导航模块,单 GPS 定位,16.369M 晶振,标准输出
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* ATGM336H-5N-'''21''', 9.7X10.1 尺寸,AT6558 芯片,导航模块,单 BDS 定位,16.369M 晶振,标准输出
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* ATGM336H-5N-'''31''', 9.7X10.1 尺寸,AT6558 芯片,导航模块, GPS+BDS 定位,16.369M 晶振,标准输出
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* ATGM336H-5N-'''51''', 9.7X10.1 尺寸,AT6558 芯片,导航模块,GPS+GLONASS 定位,16.369M 晶振,标准输出
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* ATGM336H-5N-'''71''', 9.7X10.1 尺寸,AT6558 芯片,导航模块,GPS+BDS+GLONASS 定位,16.369M 晶振,标准输出
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== ATGM336H-5N ==
 
== ATGM336H-5N ==

2021年1月20日 (三) 11:16的版本

目录

1 Overview

RMB 10 块的高性能 BDS/GNSS 全星座 SoC 芯片

片上集成射频前端,数字基带处理器,32 位的 RISC CPU,电源管理功能。

AT6558 支持多种卫星导航系统,包括中国的 BDS(北斗卫星导航系统),美国的 GPS,俄罗斯的 GLONASS,欧盟的 GALILEO,日本的 QZSS 以及卫星增强系统 SBAS(WAAS,EGNOS,GAGAN,MSAS)。其是一款真正意义的六合一多模卫星导航单芯片,可以同时接收六个卫星导航系统的 GNSS 信号,并且实现联合定位、导航与授时


  • 2.7 ~ 3.6V
  • BDS/GPS 双模连续运行:<23mA(@3.3V)
  • 待机:<10uA(@3.3V)



2 框图

AT6558-blockdiagram.jpg


3 Pinmap

AT6558-pinmap.jpg


4 参考设计

4.1 无源天线

接无源天线,模块 RF_IN 输入端必须增加一级 LNA(低噪声放大器):

AT6558-app-sch.jpg


4.2 有源天线

  • RF_IN 直接接天线
  • VCC_RF 串一个 47nH 的电感后,接天线


5 BOM

名称 参数 封装 型号 规格 厂家
DC/DC 功率电感 4.7uH 0603 CIG10W4R7MNC ±20%,620mA,0.5 欧 SAMSUNG
DC/DC 功率电感 4.7uH 0603 LQM18PN4R7MFR ±20%,620mA,0.5 欧 MURATA
高频电感 4.3nH 0402 LQW15AN4N3C00D ±0.2nH,750mA,0.07 欧 MURATA
高频电感 4.3nH 0402 LQG15HN4N3S02 ±0.3nH,300mA,0.21 欧 MURATA
高频电感 6.8nH 0402 LQW15AN6N8H00D ±3%,570mA,0.13 欧 MURATA
高频电感 6.8nH 0402 LQG15HN6N8J02 ±5%,300mA,0.29 欧 MURATA
高频电感 33nH 0402 LQW15AN33NH00D ±3%,260mA,0.63 欧 MURATA
高频电感 33nH 0402 LQG15HN33NJ02 ±5%,200mA,0.67 欧 MURATA
RTC 晶体 32.768K SMD3215 FC-135 20ppm,CL=12.5pF EPSON
RTC 晶体 32.768K SMD3215 DST310S 20ppm,CL=12.5pF KDS
TCXO 晶振 26M SMD2520 DSB221SDN 3.3V,0.5ppm@-30℃ to +85℃ KDS
TCXO 晶振 26M SMD2520 NT2520SB 3.3V,0.5ppm@-30℃ to +85℃ NDK
低噪声放大器 LNA 6UDFN AT2659 Gain=21.5dB,NF=0.8dB 杭州中科微
低噪声放大器 LNA 6UDFN MAX2659 Gain=20dB,NF=0.8dB MAXIM
低噪声放大器 LNA TSNP-6-2 BGA524N6 Gain=20dB,NF=0.6dB Infineon
滤波器 SAW SMD1411 SAFEB1G57KE0F00 Insertion Loss = 0.95dB@1575.42M impedance=50 欧 MURATA
滤波器 SAW SMD1411 SAFEA1G58KA0F00 Insertion Loss = 0.95dB@1575.42M impedance=50 欧 MURATA



6 模块型号

  • ATGM336H-5N-11, 9.7X10.1 尺寸,AT6558 芯片,导航模块,单 GPS 定位,16.369M 晶振,标准输出
  • ATGM336H-5N-21, 9.7X10.1 尺寸,AT6558 芯片,导航模块,单 BDS 定位,16.369M 晶振,标准输出
  • ATGM336H-5N-31, 9.7X10.1 尺寸,AT6558 芯片,导航模块, GPS+BDS 定位,16.369M 晶振,标准输出
  • ATGM336H-5N-51, 9.7X10.1 尺寸,AT6558 芯片,导航模块,GPS+GLONASS 定位,16.369M 晶振,标准输出
  • ATGM336H-5N-71, 9.7X10.1 尺寸,AT6558 芯片,导航模块,GPS+BDS+GLONASS 定位,16.369M 晶振,标准输出


7 ATGM336H-5N

为了充分发挥 ATGM336H-5N 的优良性能,用户在使用本模块时需要注意以下几点:

  • 采用低纹波的 LDO 电源,将纹波控制在 50mVpp 以内。
  • 模块附近尽量不要走其它频率高、幅度大的数字信号。模块下面全部以地线填充为佳。
  • 天线接口尽量靠近模块的 RF 输入引脚,并注意 50 欧姆的阻抗匹配。
  • 模块本身具有有源天线接入、拔出、短路检测电路,同时在天线意外短路时,对天线的供电电流进行限制(50mA),起到保护的作用。

在上述 3 种天线端口状态发生变化时,可以从串口输出相应的信息。如

$GPTXT,01,01,01,ANTENNA SHORT*63 
$GPTXT,01,01,01,ANTENNA OPEN*25 
$GPTXT,01,01,01,ANTENNA OK*35


8 串口输出

$GNGGA,012410.000,4036.4867,N,11647.3309,E,1,09,1.0,172.2,M,0.0,M,,*7A
$GNGLL,4036.4867,N,11647.3309,E,012410.000,A,A*41
$GPGSA,A,3,23,08,09,27,16,07,26,,,,,,2.0,1.0,1.7*36
$BDGSA,A,3,06,10,,,,,,,,,,,2.0,1.0,1.7*21
$GPGSV,2,1,08,07,27,310,29,08,49,207,34,09,38,280,31,16,56,046,29*79
$GPGSV,2,2,08,23,39,231,29,26,31,071,25,27,80,135,34,31,05,128,*77
$BDGSV,1,1,04,06,18,189,20,07,,,24,10,59,295,25,11,,,26*60
$GNRMC,012410.000,A,4036.4867,N,11647.3309,E,0.00,293.74,070619,,,A*74
$GNVTG,293.74,T,,M,0.00,N,0.00,K,A*28
$GNZDA,012410.000,07,06,2019,00,00*45
$GPTXT,01,01,01,ANTENNA OK*35

$GNGGA,012411.000,4036.4867,N,11647.3310,E,1,09,1.0,172.3,M,0.0,M,,*72
$GNGLL,4036.4867,N,11647.3310,E,012411.000,A,A*48
$GPGSA,A,3,23,08,09,27,16,07,26,,,,,,2.0,1.0,1.7*36
$BDGSA,A,3,06,10,,,,,,,,,,,2.0,1.0,1.7*21
$GPGSV,2,1,08,07,27,310,29,08,49,207,34,09,38,280,31,16,56,046,29*79
$GPGSV,2,2,08,23,39,231,29,26,31,071,25,27,80,135,34,31,05,128,*77
$BDGSV,1,1,04,06,18,189,20,07,,,24,10,59,295,25,11,,,26*60
$GNRMC,012411.000,A,4036.4867,N,11647.3310,E,0.00,293.74,070619,,,A*7D
$GNVTG,293.74,T,,M,0.00,N,0.00,K,A*28
$GNZDA,012411.000,07,06,2019,00,00*44
$GPTXT,01,01,01,ANTENNA OK*35

$GNGGA,012412.000,4036.4867,N,11647.3311,E,1,09,1.0,172.2,M,0.0,M,,*71
$GNGLL,4036.4867,N,11647.3311,E,012412.000,A,A*4A
$GPGSA,A,3,23,08,09,27,16,07,26,,,,,,2.0,1.0,1.7*36
$BDGSA,A,3,06,10,,,,,,,,,,,2.0,1.0,1.7*21
$GPGSV,2,1,08,07,27,310,29,08,49,207,34,09,38,280,32,16,56,046,29*7A
$GPGSV,2,2,08,23,39,231,29,26,31,071,26,27,80,135,35,31,05,128,*75
$BDGSV,1,1,04,06,18,189,20,07,,,24,10,59,295,25,11,,,26*60
$GNRMC,012412.000,A,4036.4867,N,11647.3311,E,0.00,293.74,070619,,,A*7F
$GNVTG,293.74,T,,M,0.00,N,0.00,K,A*28
$GNZDA,012412.000,07,06,2019,00,00*47
$GPTXT,01,01,01,ANTENNA OK*35
  • $GNGGA: Time, position, and fix related data of the receiver.
  • $GNGLL: Position, time and fix status.
  • $GNGSA/$GPGSA/$BDGSA: Used to represent the ID’s of satellites which are used for position fix. When both GPS and Beidou

satellites are used in position solution, a $GNGSA sentence is used for GPS satellites and another $GNGSA sentence is used for Beidou satellites. When only GPS satellites are used for position fix, a single $GPGSA sentence is output. When only Beidou satellites are used, a single $BDGSA sentence is output.

  • $GPGSV/$BDGSV: Satellite information about elevation, azimuth and CNR, $GPGSV is used for GPS satellites, while
  • $BDGSV is used for Beidou satellites
  • $GNRMC: Time, date, position, course and speed data.
  • $GNVTG: Course and speed relative to the ground.
  • $GNZDA: UTC, day, month and year and time zone.



9 Reference









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