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ADF4252, ADF4252B, ADF4252BCP

Table of contents:
Info of ADF4252
Info of ADF4252B
Info of ADF4252BCP

ADF4252, ADF4252B, ADF4252BCP Selling Leads, Datasheet

MFG:Analog Devices Inc Category:Integrated Circuits (ICs) Package Cooled:AD D/C:N/A

ADF4252, ADF4252B, ADF4252BCP Datasheet download

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Part Number: ADF4252BCP

Category: Integrated Circuits (ICs)

MFG: Analog Devices Inc

Package Cooled: AD

D/C: N/A

Description: IC PLL FREQ SYNTHESIZER 24-LFCSP

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ADF4252 General Description

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.

ADF4252 Maximum Ratings

V_DD1, V_DD2, VD_D3, DV_DD to GND3 . . . . . . .. 0.3 V to +4 V
REFIN, RFINA, RFINB to GND . . . . . . 0.3 V to VDD + 0.3 V
V_P1, V_P2 to GND . . . . . . . . . . . . . . . . . . . 0.3 V to +5.8 V
V_P1, V_P2 to V_DD1 . . . . . . . . . . . . . . . . . . . 3.3 V to +3.5 V
Digital I/O Voltage to GND . . . . . . . . 0.3 V to V_DD + 0.3 V
Analog I/O Voltage to GND . . . . . .. . 0.3 V to V_DD + 0.3 V
Operating Temperature Range
   Industrial (B Version) . . . . . . . . . . . .. . . 40°C to +85°C
Storage Temperature Range . . . . . . . . . 65°C to +150°C
Maximum Junction Temperature . . . . . . . . . . . . . . . 150°C
CSP _JAThermal Impedance . . . . . . . . . . . . . . . . 122°C/W
Soldering Reflow Temperature
   Vapor Phase (60 sec max) . . . . . . . . . . . . . . . . . . 240°C
   IR Reflow (20 sec max) . . . . . . . . . . . . . . . . . . . . . 240°C

ADF4252 Features

3.0 GHz Fractional-N/1.2 GHz Integer-N
2.7 V to 3.3 V Power Supply
Separate VP Allows Extended Tuning Voltage to 5 V
Programmable Dual Modulus Prescaler
RF: 4/5, 8/9
IF: 8/9, 16/17, 32/33, 64/65
Programmable Charge Pump Currents
3-Wire Serial Interface
Digital Lock Detect
Power-Down Mode
Programmable Modulus on Fractional-N Synthesizer
Trade-Off Noise versus Spurious Performance

ADF4252 Typical Application

Base Stations for Mobile Radio (GSM, PCS, DCS, CDMA, WCDMA)
Wireless Handsets (GSM, PCS, DCS, CDMA, WCDMA)
Wireless LANs
Communications Test Equipment
CATV Equipment

ADF4252 Connection Diagram

ADF4252BCP Parameters

Technical/Catalog Information	ADF4252BCP
Vendor	Analog Devices Inc
Category	Integrated Circuits (ICs)
Type	PLL Frequency Synthesizer
Voltage - Supply	2.7 V ~ 3.3 V
Number of Outputs	1
Input	CMOS
Output	-
Frequency-Max	3GHz
Package / Case	24-LFCSP
Packaging	Tray
Operating Temperature	-40°C ~ 85°C
Drawing Number	*
RoHS Status	RoHS Non-Compliant
Other Names	ADF4252BCP ADF4252BCP

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