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TRF371125 Data Sheet

INTEGRATED IQ DEMODULATOR

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TRF371125
TRF371125 www.ti.com SLWS219B – JANUARY 2010 – REVISED DECEMBER 2010 INTEGRATED IQ DEMODULATOR Check for Samples: TRF371125 FEATURES 1 •2 Frequency Range: 700 MHz to 4000 MHz • Integrated Baseband Programmable-Gain Amplifier • On-Chip Programmable Baseband Filter • High Out-of-Band IP3: 24 dBm at 2400 MHz • High Out-of-Band IP2: 60 dBm at 2400 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 • WiMAX • High-Linearity Direct-Downconversion Receiver • LTE (Long Term Evolution) DESCRIPTION The TRF371125 is a highly linear and integrated direct-conversion quadrature demodulator. The TRF371125 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 (atte.
TRF371125

Download TRF371125 Datasheet
TRF371125 www.ti.com SLWS219B – JANUARY 2010 – REVISED DECEMBER 2010 INTEGRATED IQ DEMODULATOR Check for Samples: TRF371125 FEATURES 1 •2 Frequency Range: 700 MHz to 4000 MHz • Integrated Baseband Programmable-Gain Amplifier • On-Chip Programmable Baseband Filter • High Out-of-Band IP3: 24 dBm at 2400 MHz • High Out-of-Band IP2: 60 dBm at 2400 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 • WiMAX • High-Linearity Direct-Downconversion Receiver • LTE (Long Term Evolution) DESCRIPTION The TRF371125 is a highly linear and integrated direct-conversion quadrature demodulator. The TRF371125 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 TRF371125 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 QFN package, the TRF371125 provides the smallest and most integrated receiver solution available for highperformance equipment. To Microcontroller To Microcontroller CLOCK DATA STROBE MIXIoutp MIXIoutn NC NC Gain_B0 Gain_B1 Gain_B2 READBACK NC RFin GNDDIG VCCDIG CHIP_EN VCCMIX1 GND MIXinp MIXinn GND.


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