Contents
Preface ................................................................................................................................ 3
Contents .............................................................................................................................. 5
1
Hardware Description .................................................................................................. 8
1.1
Overview .............................................................................................................................................. 8
1.2
Architecture .......................................................................................................................................... 8
2
Design-in ....................................................................................................................... 9
2.1
Power management ........................................................................................................................... 10
2.1.1
Power domains............................................................................................................................ 10
2.1.2
Supply voltages ........................................................................................................................... 12
2.1.3
Built in supply monitors ............................................................................................................... 15
2.1.4
Operating Modes ........................................................................................................................ 15
2.2
PIOs .................................................................................................................................................... 16
2.2.1
SQI Flash memory ........................................................................................................................ 17
2.2.2
Configuration pins ...................................................................................................................... 18
2.2.3
Communication interfaces ........................................................................................................... 19
2.2.4
Time pulse ................................................................................................................................... 21
2.2.5
External interrupt ........................................................................................................................ 21
2.2.6
2.2.7
Active Antenna Supervisor ........................................................................................................... 22
2.3
System reset ....................................................................................................................................... 24
2.4
Clock generation ................................................................................................................................ 25
2.4.1
2.4.2
2.4.3
Frequency perturbations .............................................................................................................. 26
2.4.4
Crystal oscillator .......................................................................................................................... 27
2.4.5
TCXO .......................................................................................................................................... 28
2.5
Real-Time Clock (RTC) ........................................................................................................................ 30
2.5.1
RTC using a crystal ...................................................................................................................... 30
2.5.2
2.5.3
RTC using an external clock ......................................................................................................... 30
2.5.4
Time aiding ................................................................................................................................. 30
2.6
RF front-end ....................................................................................................................................... 32
GPS.G7-HW-10003
UBX-G7020 - Hardware Integration Manual
Objective Specification
Contents
Page 5 of 74