TFM.115A
Overview
The TFM.115A is a high-performance multi-band GNSS RF front-end module designed for high-precision positioning applications. It supports multiple constellations including GPS, GLONASS, Galileo, and BeiDou across frequencies from 1.176GHz to 1.602GHz. The module integrates a two-stage Low Noise Amplifier (LNA) and SAW filters to ensure optimal signal integrity in complex RF environments.
Why Choose This Part
The module features a dual-gain stage architecture and integrated SAW filters that achieve a low noise figure of 2.6 nV/rtHz, which is critical for weak satellite signal acquisition. Its compact 18mm x 20mm 34-SMD package allows for a low-profile form factor and simplified system integration compared to discrete RF designs. Additionally, its wide input voltage range of 1.8V to 5.5V offers significant flexibility for various power rail configurations.
Applications
Key Specifications
Getting Started
To integrate the TFM.115A, ensure the PCB layout follows strict RF design guidelines, specifically maintaining 50-ohm impedance matching for the GNSS input and output traces. The module operates with a low run current of 7.5mA to 9.0mA at 1.8V, making it suitable for battery-powered designs. Engineers should refer to the Taoglas evaluation board documentation for optimized land pattern and grounding recommendations to maximize out-of-band rejection.
