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ADF4196 Fractional-N PLLs Frequency Synthesizers

Analog Devices ADF4196 Fractional-N PLLs Frequency Synthesizers implement local oscillators (LO) in the up-conversion and down-conversion sections of wireless transmitters and receivers. ADF4196's design meets the GSM/EDGE lock-time requirements for base stations. The series's 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. 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. ADF419's switching architecture ensures that the PLL settles within the GSM time-slot guard period. This switching architecture eliminates the need for a second PLL and associated isolation switches. The fractional-N PLL architecture decreases the complexity, PCB area, shielding, and characterization compared to previous ping-pong GSM PLL architectures.Learn More

RF, Microwave & Millimeter Wave ADI SLP

ADF4196BCPZ-RL7 Price & Stock

Analog Devices ADF4196BCPZ-RL7 pricing and available inventory.

Alternate Names

Analog Devices has several brands around the world that may have alternate names for ADF4196BCPZ-RL7 due to regional differences or acquisition. ADF4196BCPZ-RL7 may also be known as the following names:

AD5242BRUZ1M distributor