ADI ADF4252BCPZ

时钟/频率合成器（RF/IF），分数-N，整数-N，是CMOS，TTL时钟

Overview

The ADF4252BCPZ is a dual fractional-N/integer-N frequencysynthesizer that can be used to implement local oscillators (LO)in the upconversion and downconversion sections of wirelessreceivers and transmitters. Both the RF and IF synthesizersconsist of a low noise digital phase frequency detector (PFD), aprecision charge pump, and a programmable reference divider.The RF synthesizer has a Σ-Δ-based fractional interpolator thatallows programmable fractional-N division. The IF synthesizerhas programmable integer-N counters. A complete phase-lockedloop (PLL) can be implemented if the synthesizer is used withan external loop filter and voltage controlled oscillator (VCO).

Control of all the on-chip registers is via a simple 3-wire interface.The device operates with a power supply ranging from 2.7 V to3.3 V and can be powered down when not in use.

Features

Tray Package
Available in the 24-WFQFN Exposed Pad, CSP
Supply voltage of 3V
Operating supply voltage of 3V

Surface Mount Mounting Type

Applications

There are a lot of Analog Devices Inc.
ADF4252BCPZ Clock Generators applications.

• Picocells, femtocells and small cells
• Sampling clocks for ADC and DAC
• 1 Gigabit Ethernet
• 10 Gigabit Ethernet
• FPGA and processor clocks
• Line cards used in telephone exchange
• Fiber Channel
• PCI express cards
• Infotainment systems
• Medical equipment