TI TRF371109 Direct Downconversion Receivers
The Texas Instruments TRF371109 0.3-1.7 GHz wide bandwidth integrated direct downconversion receiver integrates balanced I and Q mixers, LO buffers, and phase splitters to convert an RF signal directly to I and Q baseband. The on-chip programmable gain amplifiers allow adjustment of the output signal level without the need for external variable gain (attenuator) devices. The TI TRF371109 direct downconversion receiver integrates programmable baseband low-pass filters that attenuate nearby interference, eliminating the need for an external baseband filter. The TI TRF371109 is housed in a 7-mm × 7-mm VQFN package and provides the smallest and most integrated receiver solution available for high-performance equipment.