ADF4196BCPZ

ADF4196 Fractional-N PLLs Frequency Synthesizers

Analog Devices Inc. ADF4196 Fractional-N PLLs Frequency Synthesizers implement local oscillators (LO) in the up-conversion and down-conversion sections of wireless transmitters and receivers. The ADF4196 design meets the GSM/EDGE lock-time requirements for base stations. The fast settling capability makes the ADF4196 well-suited for pulse-Doppler radar applications. The design includes a low-noise, digital phase frequency detector (PFD) and a precision differential charge pump. Analog Devices ADF419's differential amplifier converts the output of the differential charge pump to a single-ended voltage for the external voltage-controlled oscillator (VCO). The sigma-delta (Σ-Δ) based fractional interpolator, in conjunction with the N divider, enables programmable modulus, fractional-N division. Designers can implement a complete phase-locked loop (PLL) if the synthesizer is used with a VCO and an external loop filter.

RF Solutions

Analog Devices offers components that cover the complete high speed and RF signal chain. The portfolio enables design engineers to develop platform electronic test and measurement systems that have best-in-class performance and low cost of test and ownership across an ever increasing frequency range from DC to > 100GHz and beyond. As the preeminent supplier of data converters, RF and microwave ICs, Analog Devices provides more than 2,000 high performance products across the entire frequency spectrum.
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RF, Microwave & Millimeter Wave ADI SLP