Integration Manual
Table Of Contents
- Preface
- Contents
- 1 System description
- 1.1 Overview
- 1.2 Architecture
- 1.3 Pin-out
- 1.4 Operating modes
- 1.5 Power management
- 1.6 System functions
- 1.7 RF connection
- 1.8 (U)SIM interface
- 1.9 Serial communication
- 1.10 DDC (I2C) interface
- 1.11 Audio Interface
- 1.12 General Purpose Input/Output (GPIO)
- 1.13 Reserved pins (RSVD)
- 1.14 Schematic for LISA-U series module integration
- 1.15 Approvals
- 2 Design-In
- 2.1 Design-in checklist
- 2.2 Design Guidelines for Layout
- 2.2.1 Layout guidelines per pin function
- 2.2.2 Footprint and paste mask
- 2.2.3 Placement
- 2.3 Thermal aspects
- 2.4 Antenna guidelines
- 2.5 ESD precautions
- 3 Features description
- 4 Handling and soldering
- 5 Product Testing
- Appendix
- A Migration to LISA-U2 series wireless modules
- B Glossary
- Related documents
- Revision history
- Contact
LISA-U series - System Integration Manual
3G.G2-HW-10002-A3 Preliminary Design-In
Page 111 of 160
Figure 58: Layer 3 (inner layer) of u-blox approved interface board for LISA-U series modules
The dielectric thickness (FR4 Prepreg 1080) from Layer 3 (inner layer) to Layer 4 (bottom layer) is 0.27 mm.
The Layer 4 (bottom layer, described in Figure 59) is designed for signals routing, components placement and
GND plane.
Layer 4 thickness is 0.035 mm.
Figure 59: Layer 4 (bottom layer) of u-blox approved interface board for LISA-U series modules
The antenna gain must not exceed the levels reported in the chapter 1.15.3.2 to preserve the original
u-blox FCC ID.
The antenna must be installed and operated with a minimum distance of 20 cm from all persons and
must not be co-located or operating in conjunction with any other antenna or transmitter.
Under the requirements of FCC Section 15.212(a)-iv, the module must contain a permanently attached antenna,
or contain an unique antenna connector, and be marketed and operated only with specific antenna(s).
In accordance with FCC Section 15.203, the antenna should use a unique coupling connector to the
approved reference design for LISA-U series modules, to ensure that the design will not be deployed
with antenna of different characteristic from the approved type.