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SARA-R52 series
LTE-M / NB-IoT modules based on UBX-R52 chipset
System integration manual
Abstract
This document describes the features and the integration of the size-optimized SARA-R52 series
cellular modules, based on the latest u-blox UBX-R52 cellular chipset. The modules are specifically
designed for IoT, integrating an in-house developed cellular modem and A-GPS technology, and the
u-blox's leading M10 GNSS technology. The modules deliver high performance satellite positioning
alongside data connectivity in the very small and compact SARA form factor.
UBX-23004806 - R02
C1-Public
SARA-R52
www.u-blox.com
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Table of Contents
Related Manuals for Ublox SARA-R520M10
Summarization of Contents
System Description
Overview
Introduces SARA-R52 series modules as ideal solutions for IoT applications.
Architecture
Summarizes the internal architecture of SARA-R520 and SARA-R520M10 modules.
Pin-out
Lists the pin-out of the SARA-R52 series modules, grouped by function.
Operating Modes
Defines the different operating modes of SARA-R52 series modules.
Supply Interfaces
Details the VCC, V_INT, and V_BCKP_GNSS supply interfaces.
System Function Interfaces
Describes module power-on, power-off, and reset functions.
Antenna Interfaces
Covers cellular, GNSS, and detection antenna interfaces.
SIM Interface
Details the SIM card interface and detection functionality.
Data Communication Interfaces
Explains UART, USB, SPI, SDIO, and I2C communication interfaces.
General Purpose Input/Output (GPIO)
Covers general purpose I/O and custom function configurations.
Design-in Guidelines
Overview
Guides for optimal integration of SARA-R52 series modules.
Supply Interfaces Design
Details VCC, V_INT, and V_BCKP_GNSS supply interface design.
System Functions Interfaces Design
Covers design for PWR_ON and RESET_N interfaces.
Antenna Interfaces Design
Guidelines for cellular, GNSS, and detection antenna designs.
SIM Interface Design
Provides guidelines for SIM card and chip connection design.
Data Communication Interfaces Design
Details UART, USB, SPI, SDIO, and I2C interface design.
ADC Design
Guidelines for ADC circuit and layout design.
GPIO Design
Covers GPIO circuit and layout design guidelines.
Module Placement and Footprint
Recommendations for module placement and PCB footprint.
Schematic for Module Integration
Example schematic diagram for SARA-R520 module integration.
Design-in Checklist
Checklists for schematic, layout, and antenna design.
Handling and Soldering
Packaging, Shipping, Storage, and Moisture Preconditioning
Information on packaging, shipping, storage, and MSD handling.
Handling Precautions
Guidelines for ESD precautions and safe module handling.
Soldering Guidelines
Recommendations for soldering paste and reflow processes.
Approvals and Certifications
Product Certification Approval Overview
Overview of product certification and scheme requirements.
US FCC Notice
FCC compliance information, safety warnings, and modifications.
Canada ISED Notice
ISED Canada compliance, safety warnings, and modifications.
European Conformance CE Mark
Details CE marking requirements and standards.
Regional Approvals
Summarizes ACMA (Australia), GITEKI (Japan), NCC (Taiwan) approvals.
Product Testing
Validation Testing and Qualification
Guidelines for validating and qualifying the host product.
Production Testing
Covers u-blox in-line tests and OEM production tests.
Appendix and Related Information
Migration Between SARA Modules
Guidelines for migrating from other SARA series modules.
Glossary
Definitions of abbreviations and technical terms used.
Related Documentation
List of referenced documents for further information.
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