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Ring PLLs play an important role in mobile baseband applications. In cases where fine frequency resolution and low jitter are both needed, wideband fractional-N PLL architectures with quantization noise (Q-noise) cancellation are preferred. Phase interpolators (PI) are widely used in recent literature [1-3]. Although the Q-noise is reduced, decreasing supply voltages severely limit the linearity and...
The following topics are dealt with: frequency synthesis; optical lattice clock; device and material characterization methods; FBAR and EMAT sensors; frequency control components; timing and clocks; resonant sensors; electronic circuit manufacturing; physical sensors; miniature oscillators; single ion optical clocks; SAW biosensors; voltage controlled oscillators; miniature devices; optical components;...
A single chip FDDI transceiver is presented. A crystal based dual PLL locks to 125 Mb/s NRZI data and captures them. The receiver jitter tolerance is 6.1 nS. The transmitter converts parallel data into serial data by a PLL generated 125 MHz clock. The high level integration and robust asynchronous operation are achieved. This transceiver operates at a single 5 V supply and dissipates 1.2 W.
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