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BF904AR Datasheet(PDF) 41 Page - NXP Semiconductors |
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BF904AR Datasheet(HTML) 41 Page - NXP Semiconductors |
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41 / 130 page  42 NXP Semiconductors RF Manual 16th edition 2. Focusapplications,products&technologies State-of-the-art QUBiC4 NXP’s industry-leading QUBiC4 technology, available since 2002, has been widely deployed in the field and offers more consistent parameter performance compared to GaAs technology. It speeds the migration from GaAs to silicon and delivers more functionality in less space. High integration reduces the design footprint and enables more cost- competitive designs. It also improves reliability and offers significant savings in manufacturing expenditures. Digital wideband VGAs with high linearity & flexible current settings These 6-bit digital VGAs (BGA7204 & BGA7210) offer high linearity (35 dBm @ 2.2-2.8 GHz) and high output power (23 dBm @ 2.2-2.8 GHz) across a large bandwidth without external matching. Smart routing with no connection crosses simplifies design and decreases footprint by 25%. The unique power-save mode can effectively reduce the current consumption in TDD systems up to 45%. The BGA7210 adds flexible current distribution across its two amplifiers, depending on the attenuation state, to save current. Application diagram of base station (all cellular standards and frequencies) The block diagram below shows base station transmit (upper part, Tx) and receive (lower part, Rx) functions, and includes the Tx feedback function (middle part, Tx feedback). 2.1.1 BuildahighlyefficientsignalchainwithRFcomponentsfortransmitline-upsandreceivechains As a global leader in RF technology and component design, NXP Semiconductors offers a complete portfolio of RF products, from low- to high-power signal conditioning that delivers advanced performance and helps simplify your design and the development process. Our solutions range from discrete devices to modular building blocks, so you can design a highly efficient signal chain. ADC PLL VCO DVGA Att. LO Dual DVGA Transmitter Dual DAC Dual Mixer 0 90 PLL VCO LNA BP or LP IF-SAW RF-SAW MPA HPA Dual ADC JEDEC IF IQ-Modulator I Q RF-BP IF-SAW Power Amplifier RX2 TX / RX1 Digital Front End DPD CFR DUC DDC Micro Controller Clock Generator Jitter Cleaner Tower - Mounted Amplifier µC Filter Unit LNA +VGA DVGA Mixer+LO Data Converter RF Small Signal RF Power LNA+VGA Tx Rx 2.1Wirelesscommunicationinfrastructure |
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