Configuring a phase locked loop (PLL) for a given frequency synthesis application can simultaneously be both a quick-and easy-process as well as a time-consuming, tedious, and iterative process. This ...

Abstract: This paper describes a method for mutual phase noise and spurious tones analysis of integer-N phase locked loop (PLL). With this method both contributions of individual phase noise sources ...

Abstract: In this paper, a low in-band phase noise integer-N CMOS frequency synthesizer is proposed for global navigation satellite system (GNSS) receiver. The synthesizer adopts dual-loop ...

同チャージ・ポンプは、既存のPLLチャージ・ポンプの中でも高電圧で、高いチューニング電圧の外付けVCOを直接駆動することが可能なため、アクティブ・ループ・フィルタが不要になり、システム設計の簡素化、性能の改善、部材費の低減などが可能となる。

米Analog Devices(ADI)は、高いフレキシビリティと位相ノイズ性能を実現するフラクショナルN(Fractional-N) PLLシンセサイザ「ADF4151」および「ADF4196」を発表した。2製品は、携帯電話基地局などの通信インフラ、レーダー・アプリケーション、計測機器、マイクロ波 ...

This is Part 2 of a three-part series. As discussed in Part 1 and recapped here, modern wireless communications systems (mainly superheterodyne radio transceivers) are now required to deliver higher ...

Phase-locked-loop (PLL) frequency synthesizers are signal sources often employed in many types of electronic equipment. They show up as clock sources in high-frequency instruments and as local ...

A SPLL (software phase-locked loop) is used in this Design Idea to generate a synchronous reference to common-mode powerline interference in two-electrode ECG amplification. Though intended for ECG ...

The TS_FS_9M70_X8 synthesizes 3.3V-square-wave FVCO frequencies within the HF range from 2.424MHz up to 9.697MHz, by steps of 18.9393kHz, and provides ...

One of the most challenging tasks in analog circuit design is to adapt a functional block to ever new CMOS process technology. For digital circuits the number of gates per square mm approx. doubles ...