AT6558R BDS/GNSS Satellite Positioning SOC Chip
Hangzhou ZhongKe Microelectronics CO.,Ltd www.icofchina.com 1 / 28
AT6558R
BDS/GNSS Satellite Positioning SOC Chip
Hangzhou ZhongKe Microelect
ronics CO.,Ltd
Title
AT6558R
BDS/GNSS Satellite Positioning SOC Chip
Type
Datasheet
Number
DS-AT6558R
Version
1.2
Document Summary
This manual provides the functional characteristics, the chip overview and introduction.
AT6558R BDS/GNSS Satellite Positioning SOC Chip
Hangzhou ZhongKe Microelectronics CO.,Ltd www.icofchina.com 1 / 28
Directory
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1 Summary ........................................................................................................................................ 1
1.1 Chip Introduction ................................................................................................................ 1
1.2 Features ............................................................................................................................... 1
1.3 Performance Indicators ....................................................................................................... 1
1.4 Chip Application ................................................................................................................. 1
2 Pin Description ............................................................................................................................... 2
2.1 Pin Arrangement ................................................................................................................. 2
2.2 Pin Description .................................................................................................................... 2
3 Chip Architecture ........................................................................................................................... 5
3.1 Chip Block Diagram ........................................................................................................... 5
3.2 RF Front-End ...................................................................................................................... 5
3.3 Baseband Processor ............................................................................................................. 6
3.3.1 Multi System Satellite Processing Engine................................................................ 6
3.3.2 RTC Backup Area .................................................................................................... 6
3.3.3 UART ....................................................................................................................... 6
3.4 Active Antenna Detection ................................................................................................... 6
3.5 Power Scheme ..................................................................................................................... 7
3.5.1 Low Power Supply Connection Scheme .................................................................. 7
3.5.2 Power Connection Scheme without DCDC ............................................................. 7
3.6 Chip Reset ........................................................................................................................... 8
4 Electrical Characteristics ................................................................................................................ 9
4.1 Limit Characteristics ........................................................................................................... 9
4.2 DC Characteristics .............................................................................................................. 9
4.2.1 Power Pin ................................................................................................................. 9
4.2.2 Digital IO Pin ........................................................................................................... 9
4.3 Simulation Related Characteristics ................................................................................... 10
4.4 RF Related Characteristics ................................................................................................ 10