TRF371109 Datasheet | Texas Instruments

.ti. SLWS225B - DECEMBER 2010 - REVISED MAY 2011 Direct Downconversion Receiver Check for Samples: TRF371109 Features - 2 Frequency Range: 300 MHz to 1700 MHz - Integrated Baseband Programmable Gain Amplifier - On-Chip Programmable Baseband Filter - High Cascaded IP3: 27 d Bm at 900 MHz - High IP2: 68 d Bm at 900 MHz - Hardware and Software Power Down - Three-Wire Serial Interface - Single Supply: 4.5-V to 5.5-V Operation - Silicon Germanium Technology APPLICATIONS - Multicarrier Wireless Infrastructure - Wi MAX - High-Linearity Direct-Downconversion Receiver - LTE (Long Term Evolution) DESCRIPTION The TRF371109 is a highly linear direct-conversion quadrature receiver. The TRF371109 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 TRF371109 integrates programmable baseband low-pass filters that attenuate nearby interference, eliminating the need for an external baseband filter. Housed in a 7-mm × 7-mm VQFN package, the TRF371109 provides the smallest and most integrated receiver solution available for high-performance equipment. To Microcontroller To Microcontroller CLOCK DATA STROBE MIXIOUTP MIXIOUTN NC NC Gain_B0 Gain_B1 Gain_B2 READBACK...