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Partname:ADF4252BCP-REEL7
Description:Lowest Phase Noise PLL Synthesizer using Fractional-N Technology
Manufacturer:Analog Devices
Pins:24
Datasheet:PDF (492K).
Click here to download *)

The ADF4252 is a dual fractional-N/integer-N frequency synthesizer that can be used to implement local oscillators (LO) in the upconversion and downconversion sections of wireless receivers and transmitters. Both the RF and IF synthesizers consist of a low noise digital PFD (phase frequency detector), a precision charge pump, and a programmable reference divider. The RF synthesizer has a - -based fractional interpolator that allows programmable fractional-N division. The IF synthesizer has programmable integer-N counters. A complete PLL (phase-locked loop) can be implemented if the synthesizer is used with an external loop filter and VCO (voltage controlled oscillator). Control of all the on-chip registers is via a simple 3-wire interface. The devices operate with a power supply ranging from 2.7 V to 3.3 V and can be powered down when not in use.

Click here to download ADF4252BCP-REEL7 Datasheet
Click here to download ADF4252BCP-REEL7 Datasheet
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