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 Supply interfaces
- 1.5.1 Module supply input (VCC)
- 1.5.1.1 VCC supply requirements
- 1.5.1.2 VCC current consumption in LTE connected mode
- 1.5.1.3 VCC current consumption in 2G connected mode
- 1.5.1.4 VCC current consumption in ultra low power deep sleep mode
- 1.5.1.5 VCC current consumption in low power idle mode
- 1.5.1.6 VCC current consumption in active mode (PSM / low power disabled)
- 1.5.2 Generic digital interfaces supply output (V_INT)
- 1.5.1 Module supply input (VCC)
- 1.6 System function interfaces
- 1.7 Antenna interfaces
- 1.8 SIM interface
- 1.9 Data communication interfaces
- 1.10 Audio
- 1.11 General Purpose Input/Output
- 1.12 GNSS peripheral input output
- 1.13 Reserved pins (RSVD)
- 2 Design-in
- 2.1 Overview
- 2.2 Supply interfaces
- 2.2.1 Module supply (VCC)
- 2.2.1.1 General guidelines for VCC supply circuit selection and design
- 2.2.1.2 Guidelines for VCC supply circuit design using a switching regulator
- 2.2.1.3 Guidelines for VCC supply circuit design using LDO linear regulator
- 2.2.1.4 Guidelines for VCC supply circuit design using a rechargeable battery
- 2.2.1.5 Guidelines for VCC supply circuit design using a primary battery
- 2.2.1.6 Guidelines for external battery charging circuit
- 2.2.1.7 Guidelines for external charging and power path management circuit
- 2.2.1.8 Guidelines for particular VCC supply circuit design for SARA-R4x2
- 2.2.1.9 Guidelines for removing VCC supply
- 2.2.1.10 Additional guidelines for VCC supply circuit design
- 2.2.1.11 Guidelines for VCC supply layout design
- 2.2.1.12 Guidelines for grounding layout design
- 2.2.2 Generic digital interfaces supply output (V_INT)
- 2.2.1 Module supply (VCC)
- 2.3 System functions interfaces
- 2.4 Antenna interfaces
- 2.5 SIM interface
- 2.6 Data communication interfaces
- 2.7 Audio
- 2.8 General Purpose Input/Output
- 2.9 GNSS peripheral input output
- 2.10 Reserved pins (RSVD)
- 2.11 Module placement
- 2.12 Module footprint and paste mask
- 2.13 Thermal guidelines
- 2.14 Schematic for SARA-R4 series module integration
- 2.15 Design-in checklist
- 3 Handling and soldering
- 4 Approvals
- 4.1 Product certification approval overview
- 4.2 US Federal Communications Commission notice
- 4.3 Innovation, Science, Economic Development Canada notice
- 4.4 European Conformance CE mark
- 4.5 National Communication Commission Taiwan
- 4.6 ANATEL Brazil
- 4.7 Australian Conformance
- 4.8 GITEKI Japan
- 4.9 KC South Korea
- 5 Product testing
- Appendix
- A Migration between SARA modules
- B Glossary
- Related documentation
- Revision history
- Contact
SARA-R4 series - System integration manual
UBX-16029218 - R20 Design-in Page 67 of 129
C1-Public
In both of cases, selecting external or internal antennas, these recommendations should be observed:
• Select an antenna providing optimal return loss / VSWR / efficiency figure over all the operating
cellular frequencies.
• Select an antenna providing the worst possible return loss / VSWR / efficiency figure in the GNSS
frequency band, to optimize the RF coexistence between the cellular and the GNSS systems (see
section 2.4.4 for further details and guidelines regarding Cellular / GNSS RF coexistence).
• Select an antenna providing appropriate gain figure (i.e. combined antenna directivity and
efficiency figure) so that the electromagnetic field radiation intensity do not exceed the regulatory
limits specified in some countries, such as FCC United States (see section 4.2.2), ISED Canada
(see section 4.3.1), RED Europe (see section 4.4), GITEKI Japan (see section 4.8), etc.
2.4.2.2 Examples of cellular antennas
Table 23 lists some examples of possible internal on-board surface-mount antennas.
Manufacturer
Part number
Product name
Description
Taoglas
PA.710.A
Warrior
GSM / WCDMA / LTE SMD antenna
698..960 MHz, 1710..2170 MHz, 2300..2400 MHz, 2490..2690 MHz
40.0 x 6.0 x 5.0 mm
Taoglas
PCS.26.A
Havok
LTE SMD dielectric antenna
617..960 MHz, 1710..2690 MHz
54.6 x 13.0 x 3.0 mm
Taoglas
PCS.66.A
Reach
Wideband LTE SMD antenna
600..6000 MHz
32.0 x 25.0 x 1.6 mm
Antenova
SR4L002
Lucida
GSM / WCDMA / LTE SMD antenna
698..960 MHz, 1710..2170 MHz, 2300..2400 MHz, 2490..2690 MHz
35.0 x 8.5 x 3.2 mm
Ethertronics
P822601
GSM / WCDMA / LTE SMD antenna
698..960 MHz, 1710..2170 MHz, 2490..2700 MHz
50.0 x 8.0 x 3.2 mm
Ethertronics
P822602
GSM / WCDMA / LTE SMD antenna
698..960 MHz, 1710..2170 MHz, 2490..2700 MHz
50.0 x 8.0 x 3.2 mm
Ethertronics
1002436
GSM / WCDMA / LTE vertical mount antenna
698..960 MHz, 1710..2700 MHz
50.6 x 19.6 x 1.6 mm
Pulse
W3796
Domino
GSM / WCDMA / LTE SMD antenna
698..960 MHz, 1427..1661 MHz, 1695..2200 MHz, 2300..2700 MHz
42.0 x 10.0 x 3.0 mm
TE Connectivity
2118310-1
GSM / WCDMA / LTE vertical mount antenna
698..960 MHz, 1710..2170 MHz, 2300..2700 MHz
74.0 x 10.6 x 1.6 mm
Molex
1462000001
GSM / WCDMA / LTE SMD antenna
698..960 MHz, 1700..2700 MHz
40.0 x 5.0 x 5.0 mm
Cirocomm
DSAN0001
Ceramic LTE SMD antenna
698..960 MHz, 1710..2170 MHz
40.0 x 6.0 x 5.0 mm
Table 23: Examples of internal surface-mount antennas