Integration Manual
Table Of Contents
- Document Information
- 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
- 1.9.1 Serial interfaces configuration
- 1.9.2 Asynchronous serial interface (UART)
- 1.9.2.1 UART features
- 1.9.2.2 UART signal behavior
- 1.9.2.3 UART and power-saving
- 1.9.2.4 UART application circuits
- Providing the full RS-232 functionality (using the complete V.24 link)
- Providing the TxD, RxD, RTS, CTS and DTR lines only (not using the complete V.24 link)
- Providing the TxD, RxD, RTS and CTS lines only (not using the complete V.24 link)
- Providing the TxD and RxD lines only (not using the complete V24 link)
- Additional considerations
- 1.9.3 USB interface
- 1.9.4 SPI interface
- 1.9.5 MUX protocol (3GPP TS 27.010)
- 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-U2 module integration
- 1.15 Approvals
- 1.15.1 European Conformance CE mark
- 1.15.2 US Federal Communications Commission notice
- 1.15.3 Innovation, Science, Economic Development Canada notice
- 1.15.4 Australian Regulatory Compliance Mark
- 1.15.5 ICASA Certification
- 1.15.6 KCC Certification
- 1.15.7 ANATEL Certification
- 1.15.8 CCC Certification
- 1.15.9 Giteki Certification
- 2 Design-In
- 3 Features description
- 3.1 Network indication
- 3.2 Antenna detection
- 3.3 Jamming Detection
- 3.4 TCP/IP and UDP/IP
- 3.5 FTP
- 3.6 HTTP
- 3.7 SSL/TLS
- 3.8 Dual stack IPv4/IPv6
- 3.9 AssistNow clients and GNSS integration
- 3.10 Hybrid positioning and CellLocate®
- 3.11 Control Plane Aiding / Location Services (LCS)
- 3.12 Firmware update Over AT (FOAT)
- 3.13 Firmware update Over the Air (FOTA)
- 3.14 In-Band modem (eCall / ERA-GLONASS)
- 3.15 SIM Access Profile (SAP)
- 3.16 Smart Temperature Management
- 3.17 Bearer Independent Protocol
- 3.18 Multi-Level Precedence and Pre-emption Service
- 3.19 Network Friendly Mode
- 3.20 Power saving
- 4 Handling and soldering
- 5 Product Testing
- Appendix
- A Migration from LISA-U1 to LISA-U2 series
- A.1 Checklist for migration
- A.2 Software migration
- A.2.1 Software migration from LISA-U1 series to LISA-U2 series modules
- A.3 Hardware migration
- A.3.1 Hardware migration from LISA-U1 series to LISA-U2 series modules
- A.3.2 Pin-out comparison LISA-U1 series vs. LISA-U2 series
- A.3.3 Layout comparison LISA-U1 series vs. LISA-U2 series
- B Glossary
- Related documents
- Revision history
- Contact
LISA-U2 series - System Integration Manual
UBX-13001118 - R25 System description Page 27 of 182
Fast-charge constant current: the battery is charged with the maximum current, configured by
the value of an external resistor to a value suitable for USB power source (~500 mA).
Constant voltage: when the battery voltage reaches the regulated output voltage (4.2 V), the
L6924U starts to reduce the current until the charge termination is done. The charging process
ends when the charging current reaches the value configured by an external resistor to ~15 mA or
when the charging timer reaches the value configured by an external capacitor to ~9800 seconds.
Using a battery pack with an internal NTC resistor, the L6924U can monitor the battery temperature
to protect the battery from operating under unsafe thermal conditions.
Alternatively the L6924U, providing input voltage range up to 12 V, can charge from an AC wall
adapter. When a current-limited adapter is used, it can operate in quasi-pulse mode, reducing power
dissipation.
GND
LISA-U2 series
62
VCC
63
VCC
61
VCC
C8C7C6C5
+
USB
Supply
C3
R4
θ
U1
IUSB
IAC
IEND
TPRG
SD
VIN
VINSNS
MODE
ISEL
C2C1
5V0
TH
GND
VOUT
VOSNS
VREF
R1
R2
R3
Li-Ion/Li-Pol
Battery Pack
D1
B1
C4
Li-Ion/Li-Polymer
Battery Charger IC
C9
FB1
Figure 10: Li-Ion (or Li-Polymer) battery charging application circuit
Reference
Description
Part Number - Manufacturer
B1
Li-Ion (or Li-Polymer) battery pack with 470
NTC
Various manufacturer
C1, C4
1 µ F Capacitor Ceramic X7R 0603 10% 16 V
GRM188R71C105KA12 - Murata
C2, C6
10 nF Capacitor Ceramic X7R 0402 10% 16 V
GRM155R71C103KA01 - Murata
C3
1 nF Capacitor Ceramic X7R 0402 10% 50 V
GRM155R71H102KA01 - Murata
C5
330 µ F Capacitor Tantalum D_SIZE 6.3 V 45 m
T520D337M006ATE045 - KEMET
C7
100 nF Capacitor Ceramic X7R 0402 10% 16 V
GRM155R61A104KA01 - Murata
C8
15 pF Capacitor Ceramic C0G 0402 5% 50 V
GRM1555C1H150JA01 - Murata
C9
68 pF Capacitor Ceramic C0G 0402 5% 50 V
GRM1555C1H680JA01 - Murata
D1
Low Capacitance ESD Protection
USB0002RP or USB0002DP - AVX
FB1
Chip Ferrite Bead EMI Filter for GHz Band Noise
220 at 100 MHz, 260 at 1 GHz, 2000 mA
BLM18EG221SN1 - Murata
R1, R2
24 k Resistor 0402 5% 0.1 W
RC0402JR-0724KL - Yageo Phycomp
R3
3.3 k Resistor 0402 5% 0.1 W
RC0402JR-073K3L - Yageo Phycomp
R4
1.0 k Resistor 0402 5% 0.1 W
RC0402JR-071K0L - Yageo Phycomp
U1
Single Cell Li-Ion (or Li-Polymer) Battery
Charger IC for USB port and AC Adapter
L6924U - STMicroelectronics
Table 11: Suggested components for Li-Ion (or Li-Polymer) battery charging application circuit