European Microwave Week, AMSTERDAM, Netherlands (10/29/2012) - Analog Devices, Inc. (ADI), a global leader in high-performance semiconductors for signal-processing applications and leading provider of RF ICs (radio frequency integrated circuits), today announced the release of a PLL synthesizer that offers leading phase noise performance. An upgrade to the widely used 4-GHz ADF4153 fractional-N PLL, the new, pin- and software-compatible ADF4153A PLL synthesizer facilitates improved integrated phase noise in a variety of applications including communications infrastructure, pulse-Doppler and FMCW (frequency-modulated continuous-wave) radar applications, test and instrumentation equipment, microwave point-to-point systems, PMR (professional mobile radio), VSATs (very small aperture terminals) and aerospace systems. The new PLL is showcased this week at Analog Devices Booth 221.
With an RF bandwidth of 4 GHz, the ADF4153A PLL synthesizer consists of a low-noise digital phase frequency detector (PFD), a precision charge pump, a sigma-delta fractional-N divider and a programmable reference divider. When used together with an external VCO, the ADF4153A PLL can phase lock signals up to 4 GHz and can greatly improve the system integrated phase noise compared to the ADF4153, without requiring any significant board revisions. The ADF4153A displays market leading phase noise figure of merit (FOM) and PLL 1/f noise performance for a sub-100 mW part.
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