Front end RF module addresses smart metering and ISM band applications
The RFFM6403 integrates a transmit high power path with a +30.5dBm PA and Tx harmonic output filtering, a transmit bypass through path with Tx harmonic output filtering, and a receive path with a low noise amplifier (LNA) with bypass mode. The FEM also features a low insertion loss/high isolation SP3T switch and separate Rx/Tx 50Ω ports, simplifying matching and providing input and output signals for both the Tx and Rx paths.
The RFFM6403 is designed for systems operating with high efficiency requirements and a minimum output power of 30 dBm. In the receive path, the Rx chain provides 16 dB of typical gain with only 5 mA of current and an excellent noise figure of 1.7 dB. The 6x6x1mm chip minimizes product footprint at the customer device while reducing external component count and associated assembly costs.
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