UBX-G7020 - Hardware Integration Manual
Hardware Description
GPS.G7-HW-10003
Objective Specification
Page 8 of 74
1
Hardware Description
1.1
Overview
Featuring a single die solution, low power consumption and low costs, the UBX-G7020 GPS/GNSS chips are
multi-GNSS (GPS, GLONASS, Galileo, QZSS and SBAS) positioning chips developed to meet the requirements of
an extensive range of applications and end-products. Based on the high performance u-blox 7 position engine,
these receivers provide exceptional sensitivity and acquisition times without requiring an external host. u-blox’
advanced RF-design and interference suppression measures enable reliable positioning even in difficult signal
conditions.
u-blox 7 technology delivers high performance with low power consumption and low costs. An integrated
DC/DC converter and intelligent power management are breakthroughs for low-power applications. The minimal
BOM requires as few as 8 external components and the small footprint further reduces costs by enabling 2-layer
PCB integration. LDOs and an LNA are built-in and costly external memory is not needed. This makes UBX
G7020 positioning chips the ideal solutions for cost sensitive applications that don’t require firmware update
capability. For applications needing firmware update capability or taking advantage of the data logging feature
the UBX-G7020 can be connected to an external SQI FLASH memory. Lower price GPS/GNSS crystals as well as
high performance TCXOs are also supported.
1.2
Architecture
Figure 1 shows the block diagram of the UBX-G7020. The internal LNA requires an external input matching. As
with its predecessor, u-blox 6, the customer can choose between an external TCXO and an external crystal using
the internal oscillator to provide the UBX-G7020’s system clock. New with u-blox 7 is the internal DC/DC
converter reducing the power consumption significantly. A RTC crystal, an antenna supervisor circuit and an
external SQI FLASH memory can be added optionally.
Figure 1: UBX-G7020 block diagram
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