User's Manual
Table Of Contents
- Introduction
- Abbreviation
- Features
- Electrical Specifications
- Host interface pin assignments
- LGA Pad Diagram
- Pin Assignments
- Power supply
- USB interface
- SGMII interface
- UIM interface
- Control interface
- Power-on Signal
- Wake-up interface
- Reset Signal
- WWAN state Signal
- Digital interface
- JTAG Interface
- SPI Master Interface
- PCM Interface
- I2S Interface
- I2C Interface
- UART Interface
- ADC Interface
- RF Specifications
- RF connections
- Interference and sensitivity
- GNSS external circuit design
- RF Specification
- 3.5.1 Band support
- 3.5.2 Bandwidth support
- 3.5.3 RF Transmit Specification
- 3.5.4 RF Receiver Specification
- 3.5.5 GNSS Receiver Specification
- Power
- Power consumption
- Software Interface
- Support tools
- USB interface
- Mechanical and Environmental Certifications
- PCBA Form Factor
- Reflow
- PCB pad design
- Labeling
- SMT Voids control
- Mother board PCB thickness
- Stencil design
- Thermal considerations
- Regulatory Compliance and Certification
- Certification testing
- Packaging
- Tape-and-Reel Package
- Single Packaging for Samples
- MSL level
- Safety Recommendation
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HW Design Guidelines
1. Introduction
The M18QF/M18QA Series modules are LTE modems which incorporate an application CPU
subsystem and peripheral interfaces and functions uniquely designed to address the
power/performance/cost requirements of IoT and M2M applications. The CPU is based on
Qualcomm’s MDM architecture which offers OFDMA-related software based signal
processing capabilities that significantly exceed traditional communications ARM cores.
M18QF/M18QA Series modules provide a variety of interfaces including USB 2.0, SGMII, SPI,
UART, PCM, I2C, UIM & SDIO.
1.1. Abbreviation
Table 1. Abbreviation
Abbreviation
Definition
AC
Alternating Current
DC
Direct Current
ETSI
European Telecommunications Standards Institute
GND
Ground
GPS
Global Positioning System
GNSS
Any single or combined satellite navigation system (GPS,
GLONASS and combined GPS/GLONASS)
GPIO
General Purpose Input Output
I/O
Input/Output
IoT
Internet of Things
I2C
Inter-Integrated Circuit
LGA
Land Grid Array
LTE
Long Term Evolution
Mbps
Megabits per second
MIPS
Millions of Instructions Per Second
N/A
Not/Applicable
OS
Operating System
PC
Personal Computer
PCM
Pulse Code Modulation