Ublox SARA-R5 Series System Integration Manual

SARA-R5 series - System integration manual
UBX-19041356 - R04 Design-in Page 67 of 118
C1-Public
Table 23 lists examples of LNA suitable for the GNSS RF input of SARA-R510M8S modules.
Manufacturer
Part number
Comments
Maxim
MAX2659ELT+
Low noise figure, up to 10 dBm RF input power
JRC New Japan Radio
NJG1143UA2
Low noise figure, up to 15 dBm RF input power
NXP
BGU8006
Low noise figure, very small package size (WL-CSP)
Infineon
BGA524N6
Low noise figure, small package size
Table 23: Examples of GNSS Low Noise Amplifiers
Table 24 lists examples of ferrite beads suitable for the supply line of an external GNSS LNA.
Manufacturer
Part number
Comments
Murata
BLM15HD102SN1
High impedance at 1.575 GHz
Murata
BLM15HD182SN1
High impedance at 1.575 GHz
TDK
MMZ1005F121E
High impedance at 1.575 GHz
TDK
MMZ1005A121E
High impedance at 1.575 GHz
Table 24: Examples of ferrite beads for the supply line of external GNSS Low Noise Amplifiers
Table 25 lists examples of passive antennas to be used with SARA-R510M8S modules.
Manufacturer
Part number
Product name
Description
Tallysman
TW3400P
Passive antenna
GPS / SBAS / QZSS / GLONASS
Tallysman
TW3710P
Passive antenna
GPS / SBAS / QZSS / GLONASS / Galileo / BeiDou
Taoglas
CGGBP.35.3.A.02
Ceramic patch antenna
GPS / SBAS / QZSS / GLONASS / Galileo / BeiDou
Taoglas
CGGBP.18.4.A.02
Embedded patch antenna
GPS / SBAS / QZSS / GLONASS / Galileo / BeiDou
Inpaq
PA1590MF6G
Patch antenna
GPS / SBAS / QZSS / GLONASS
Yageo
ANT2525B00BT1516S
Ceramic patch antenna
GPS / SBAS / QZSS / GLONASS
Antenova
SR4G008
Sinica
Ultra-low profile patch antenna
GPS / SBAS / QZSS / GLONASS / Galileo / BeiDou
Table 25: Examples of GNSS passive antennas
2.4.3.2 Guidelines for applications with an active antenna
Active antennas offer higher gain and better overall performance compared with passive antennas
(without additional external SAW filter and LNA). However, the integrated low-noise amplifier
contributes an additional current of typically 5 to 20 mA to the system's power consumption budget.
Active antennas for GNSS applications are usually powered through a DC bias on the RF cable. A
simple bias-T, as shown in Figure 44, can be used to add this DC current to the RF signal line. The
inductance L is responsible for isolating the RF path from the DC path. It should be selected to offer
high impedance (greater than 500 Ω) at L-band frequencies. A series current limiting resistor is
required to prevent short circuits destroying the bias-t inductor.

Ublox SARA-R5 Series Specifications

General

Brand	Ublox
Model	SARA-R5 Series
Category	Control Unit
Language	English