Fractional-N PLL with FMCW radar capabilities in the X-band (7.9 - 9.8 GHz)

The NEXUS9X is a silicon-proven, CMOS, high performance Phase-Locked Loop (PLL) with integrated voltage controlled oscillator (VCO) and loop filter, designed to provide high flexibility in its use in order to adapt to a variety of applications. It covers typically the frequency range 7.9 - 9.8 GHz over variations in process, voltage and temperature (PVT), which can be scaled up/-down by using frequency multipliers/dividers, depending on the application. It requires a 40 - 320 MHz external reference and utilizes a fractional-N divider providing high frequency resolution and minimum phase noise (PN). Additional features, such as automatic VCO calibration, lock detection and frequency ramp generator for frequency-modulated continuous-wave (FMCW) Radar applications makes this PLL highly functional and adaptable. Also, external filter and/or VCO can be used, if required. Communication with the PLL is done through Serial Peripheral Interface (SPI).