u-blox UBX-G7020 Manuals

Manuals and User Guides for u-blox UBX-G7020. We have 1 u-blox UBX-G7020 manual available for free PDF download: Hardware Integration Manual

u-blox UBX-G7020 Hardware Integration Manual

u-blox UBX-G7020 Hardware Integration Manual (74 pages)

7 GPS/GNSS chips

Brand: u-blox | Category: GPS | Size: 3 MB

Table of Contents

Preface

3
Contents

5
- Table of Contents
  5
1 Hardware Description

8
- Overview
  8
- Architecture
  8
2 Design-In

9
- Power Management
  10
  - Power Domains
    10
  - Supply Voltages
    12
  - Built in Supply Monitors
    15
  - Operating Modes
    15
- Pios
  16
  - SQI Flash Memory
    17
  - Configuration Pins
    18
  - Communication Interfaces
    19
  - Time Pulse
    21
  - External Interrupt
    21
  - SAFEBOOT_N Pin/ Safe Boot Mode
    21
  - Active Antenna Supervisor
    22
- System Reset
  24
- Clock Generation
  25
  - Clock Accuracies and Tolerances
    25
  - Crystal or TCXO Package Selection
    26
  - Frequency Perturbations
    26
  - Crystal Oscillator
    27
  - Tcxo
    28
- Real-Time Clock (RTC)
  30
- RF Front-End
  32
  - General Notes on Interference Issues
    32
  - RF Front-End Circuit Options
    34
- Usb
  38
- Jtag
  39
- Layout
  40
  - Placement
    40
  - Package Footprint, Copper and Solder Mask
    40
- System Configuration
  43
3 Component Selection

48
- Tcxo (Y1)
  48
- Crystal (Y2)
  50
- RTC Crystal (Y3)
  51
- SQI Flash (U3)
  51
- RF Band-Pass Filter (F1)
  51
- External LNA Protection Filter (F2)
  52
- USB Line Protection (D1)
  52
- Usb Ldo (U3)
  52
- External LNA (U1)
  52
- LNA_IN ESD Protection Diode (D1)
  53
- Operational Amplifier (U6)
  53
- Open-Drain Buffer (U4, U7 and U8)
  53
- Antenna Supervisor Switch Transistor (T1)
  53
- RF Inductors
  53
- Inductor for DCDC Converter (L2)
  54
- Standard Capacitors
  54
- Standard Resistors
  55
- Ferrite Beads (FB1)
  55
- Feed-Thru Capacitors
  55
4 Design-In Checklists

56
5 Production

60
Appendix

64
A Reference Schematics

64
- Cost Optimized Circuit
  64
- Best Performance Circuit
  65
- Power Optimized Circuit
  66
- Improved Jamming Immunity
  67
- 1.8V Design Using TCXO
  68
- Circuit Using Active Antenna
  69
- USB Self-Powered Circuit
  70
- USB Bus-Powered Circuit
  71
- Circuit Using 3-Pin Antenna Supervisor
  72
Related Documents

73
Revision History

73
Contact

74

Advertisement

Advertisement

Related Products

u-blox Categories

Control Unit Motherboard

GPS

GPS Wireless modules Receiver

More u-blox Manuals