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 System description
Page 74 of 160
LISA-U series
u-blox
3.0 V GPS receiver
23
GPIO3
24
GPIO4
1V8
B1 A1
GND
U3
B2A2
VCCBVCCA
Unidirectional
Voltage Translator
C4
C5
3V0
TxD1
EXTINT0
R1
INOUT
GND
GPS LDO
Regulator
SHDN
R2
VMAIN3V0
U1
21
GPIO2
46
SDA
45
SCL
R4 R5
1V8
SDA1 SDA2
GND
U2
SCL1SCL2
VREF1VREF2
I2C-bus Bidirectional
Voltage Translator
4
V_INT
C1
C2
C3
R3
SDA2
SCL2
VCC
Functions not supported by LISA-Uxxx-00 versions
DIR1
DIR2
2
V_BCKPV_BCKP
OE
Functions not supported by LISA-U200-00 version
Figure 41: DDC Application circuit for u-blox 3.0 V GPS receiver
Reference
Description
Part Number - Manufacturer
R1, R2, R4, R5
4.7 kΩ Resistor 0402 5% 0.1 W
RC0402JR-074K7L - Yageo Phycomp
R3
47 kΩ Resistor 0402 5% 0.1 W
RC0402JR-0747KL - Yageo Phycomp
C2, C3, C4, C5
100 nF Capacitor Ceramic X5R 0402 10% 10V
GRM155R71C104KA01 - Murata
U1
Voltage Regulator for GPS Receiver
See GPS Receiver Hardware Integration Manual
U2
I2C-bus Bidirectional Voltage Translator
PCA9306DCURG4 - Texas Instruments
U3
Generic Unidirectional Voltage Translator
SN74AVC2T245 - Texas Instruments
Table 33: Components for DDC application circuit for u-blox 3.0 V GPS receiver