LTP5903-WHR Datasheet, PDF (7/19 Pages) Linear Technology – 2.4 GHz 802.15.4 Embedded Network Manager

- ADVANCED INFORMATION -
Parameter
Min
Typ
Max
Units
Comments
measurement)
Output power, conducted
Power amplifier enabled:
At 25 °C
+8
dBm
Power amplifier disabled:
At 25 °C
–2
dBm
Range*
Power amplifier enabled:
Indoor^†
Outdoor^†
100
m
25 °C, 50% RH, +2 dBi
300
m
omni-directional antenna
Free Space
1200
m
Power amplifier disabled:
Indoor^†
Outdoor^†
25
m
25 °C, 50% RH, +2 dBi
omni-directional antenna
200
m
Free Space
350
m
*Actual RF range performance is subject to a number of installation-specific variables including, but not restricted to
ambient temperature, relative humidity, presence of active interference sources, line-of-sight obstacles, near-presence
of objects (for example, trees, walls, signage, and so on) that may induce multipath fading. As a result, actual
performance varies for each instance.
† _{1 meter above ground.}
5.2
Antenna Specifications
A MMCX-compatible jack receptacle is provided on board for the antenna connection. For antenna location, refer to the
mechanical drawing in section 9.1. The antenna must meet specifications in Table 14. For a list of antennae pre-approved for
RF certification, see section 10.1.2.
Table 14 Antenna Specifications
Parameter
Frequency range
Impedance
2.4–2.4835 GHz
50 Ω
Gain
LTP5903-WHR
Pattern
+2 dBi maximum
Omni-directional
Maximum VSWR
Connector
3:1
MMCX*
* The LTP5903-WHR can accommodate the following RF mating connectors:
• MMCX straight connector such as Johnson 135-3402-001, or equivalent
• MMCX right angle connector such as Tyco 1408149-1, or equivalent
Value
When the LTP5903-WHR is placed inside an enclosure, the antenna should be mounted such that the radiating portion of the
antenna protrudes from the enclosure, and connected using a MMCX connector on a coaxial cable. For optimum
performance, allow the antenna to be positioned vertically when installed.
LTP5903-WHR Datasheet
Dust Networks
7