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Extending its portfolio of high performance RF solutions, Texas Instruments Inc. (TI) announced a high-linearity, ultra-low noise quadrature (IQ) modulator that delivers RF output transmission up to 4 GHz, allowing service providers to easily support multiple wireless communications standards on a single RF transceiver card. TI’s TRF370317 IQ modulator is a direct launch RF transmitter device that offers base station equipment manufacturers improved linearity and higher output power, which can improve overall transmitter performance, while reducing power consumption and operating expenditures for service providers.
Texas Instruments’ TRF370317 is a high-performance IQ modulator that meets the stringent requirements of GSM, CDMA2000, TD-SCDMA, W-CDMA and WiMAX, as well as emerging next-generation wireless standards such as LTE and multi-carrier GSM. The TRF370317 enables conversion from baseband or intermediate frequency directly to RF frequencies, thereby reducing bill of material (BOM) costs and board space.
“The improved linearity performance of the TRF370317 IQ modulator allows manufacturers to deploy pico, micro or macro base stations, targeting a variety of wireless air interfaces for multi-carrier applications,” said David Briggs, general manager of TI’s RF and digital radio products. “The state-of-the-art linearity performance of the TRF370317 modulator is consistent across a broad frequency range so that it can be used across multiple customer platforms targeting various communications standards. The TRF370317 is an ideal solution for base station manufacturers looking to reduce the capital and operating expenditures of their service provider customers while meeting all transmission performance requirements.”
Texas Instruments’ TRF370317 has an ultra-low noise floor of −163 dBm/Hz and features an output third order intercept point (OIP3) of 26.5 dBm, which significantly improves the adjacent channel power ratio in cellular base station transmitter designs. The TRF370317 offers up to 4.5 dB better OIP3 than its nearest competitor. The device is capable of accepting input signals that range from zero (DC) to 350 MHz and generating a modulated RF output from 400 MHz up to 4 GHz. This broad range of input and output frequencies offers designers utmost flexibility and support for a wide range of communications standards.
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