RXM-GPS-F4-T Linx Technologies, RXM-GPS-F4-T Datasheet - Page 43

• Manufacturer Part Number: RXM-GPS-F4-T
• Description: GPS Modules F4 Series GPS Recvr Module Tape and Reel
• Manufacturer: Linx Technologies

Specifications of RXM-GPS-F4-T

• Rohs: yes
• Frequency Band: 1575.42 MHz
• Number Of Channels: 48
• Time To First Fix (cold Start): 32 s
• Acquisition Sensitivity: - 159.5 dBm
• Horizontal Position Accuracy: 3 m
• Operating Supply Voltage: 1.8 V
• Operating Supply Current: 56 mA
• Interface Type: Serial
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Dimensions: 15 mm x 13 mm x 2.2 mm
• Minimum Operating Temperature: - 30 C

Each of the module’s ground pins should have short traces tying
immediately to the ground plane through a via.
Bypass caps should be low ESR ceramic types and located directly
adjacent to the pin they are serving.
A 50-ohm coax should be used for connection to an external antenna.
A 50-ohm transmission line, such as a microstrip, stripline or coplanar
waveguide should be used for routing RF on the PCB. The Microstrip
Details section provides additional information.
In some instances, a designer may wish to encapsulate or “pot” the
product. There is a wide variety of potting compounds with varying
dielectric properties. Since such compounds can considerably impact
RF performance and the ability to rework or service the product, it is
the responsibility of the designer to evaluate and qualify the impact and
suitability of such materials.
Pad Layout
The pad layout diagram in Figure 50 is designed to facilitate both hand and
automated assembly.
0.036
(0.92)
0.020
0.028
(0.50)
(0.70)
0.512
(13.00)
0.036
0.050
(0.92)
0.045
0.050
(1.27)
(1.15)
(1.27)
Figure 50: Recommended PCB Layout
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