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December 2010 [Components] RMS Detectors Scan 75-dB Dynamic Range Power detection in communications receiver and transmitter signal chains is essential, especially for applications that depend on tight control of power levels, such as wireless communications systems. Different types of power detectors are available for this purpose, including monolithic models with differential input ports. Although they offer power measurement ranges of 40 dB or more, they must be connected to a balanced-unbalanced (balun)... October 2009 [Components] Compact PLLs Integrate VCOs Low-noise local oscillators (LOs) are critical to many RF/microwave systems in commercial, industrial, and military applications. Simply put, the higher the performance of the LO, the better the performance of the system in terms of receive signal sensitivity and bit error rate (BER) capability. One of the most common methods of generating a stable LO source is to combine a low-phase-noise voltage-controlled oscillator (VCO) with a stable reference oscillator to form a... |
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