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HMC815BLC5TR-R5 数据表(PDF) 26 Page - Analog Devices |
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HMC815BLC5TR-R5 数据表(HTML) 26 Page - Analog Devices |
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26 / 30 page ![]() HMC815B Data Sheet Rev. 0 | Page 26 of 30 THEORY OF OPERATION The HMC815B is a GaAs, pHEMT, MMIC I/Q upconverter with an integrated LO buffer that upconverts IF between dc and 3.75 GHz to RF between 21 GHz and 27 GHz. LO buffer amplifiers are included on chip to allow an LO drive range from 0 dBm to 6 dBm for full performance. The LO path feeds a quadrature splitter followed by on-chip baluns that drive the I and Q singly balanced cores of the passive mixers. The RF output of the I and Q mixers are then summed through an on-chip Wilkinson power combiner and relatively matched to provide a single-ended, 50 Ω output signal that is amplified by the RF amplifiers to produce a dc-coupled and 50 Ω matched RF output signal at the RFOUT port. |
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