Linx Technologies EVM-GPS-F4 - Manual (Page 3)

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Description
The F4 Series GPS receiver module is a self-contained high-performance
GPS receiver with an on-board LNA and SAW filter. Based on the SiRFstar
IV chipset, it provides exceptional sensitivity, even in dense foliage
and urban canyons. The module’s very low power consumption helps
maximize runtimes in battery powered applications. With over 200,000
effective correlators, the F4 Series receiver can acquire and track up to 48
satellites simultaneously in just seconds, even at the lowest signal levels.
These features, along with the module’s standard NMEA data output,
make it easy to integrate, even by engineers without previous RF or GPS
experience. The Linx F4 Series GPS modules offer a simple, efficient and
costeffective method of adding GPS capabilities to any product.
The evaluation module contains the surface mount F4 Series GPS module,
an SMA connector, a 1.8V regulator, voltage level shifters (voltage level
protection for RXM and TXM lines), a microcontroller (performs F4 power
up sequence), a power source switch (switches to VBACKUP when VCC
is removed) and a ferrite bead (used to supply power to an external active
antenna, such as the Linx SH Series active GPS antenna), all on a single
board with through-hole headers. This small board makes prototyping with
the F4 Series module very easy.
F4 Series GPS Receiver
Evaluation Module
User's Guide
Revised 3/18/2015
Figure 1: F4 Series Evaluation Module