ADF4252BCP datasheet(1/28 Pages) AD

номер детали	ADF4252BCP

подробное описание детали	Dual Fractional-N/Integer-N Frequency Synthesizer

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REV. B

a

ADF4252

Dual Fractional-N/Integer-N

Frequency Synthesizer

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties that

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

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

APPLICATIONS

Base Stations for Mobile Radio (GSM, PCS, DCS,

CDMA, WCDMA)

Wireless Handsets (GSM, PCS, DCS, CDMA, WCDMA)

Wireless LANs

Communications Test Equipment

CATV Equipment

FUNCTIONAL BLOCK DIAGRAM

ADF4252

2

DOUBLER

OUTPUT

MUX

4-BIT R

COUNTER

PHASE

FREQUENCY

DETECTOR

LOCK

DETECT

CHARGE

PUMP

REFERENCE

REFIN

REFOUT

VDD1

VDD2

VDD3

DVDD

VP1

VP2

RSET

24-BIT

DATA

REGISTER

CLK

DATA

LE

RFINA

RFINB

CPRF

CPIF

2

DOUBLER

15-BIT R

COUNTER

CHARGE

PUMP

PHASE

FREQUENCY

DETECTOR

MUXOUT

AGND1 AGND2

DGND

CPGND1

CPGND2

IFINB

IFINA

FRACTIONAL N

RF DIVIDER

INTEGER N

IF DIVIDER

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 syn-

thesizers consist of a low noise digital PFD (phase frequency

detector), a precision charge pump, and a programmable refer-

ence 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 (volt-

age controlled oscillator).

Control of all the on-chip registers is via a simple 3-wire inter-

face. 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.

Аналогичный номер детали - ADF4252BCP

производитель	номер детали	датащи	подробное описание детали
Analog Devices	ADF4252BCPZ	507Kb / 30P	Dual Fractional-N/Integer-N Frequency Synthesizer Rev. E
	ADF4252BCPZ-R7	507Kb / 30P	Dual Fractional-N/Integer-N Frequency Synthesizer Rev. E
	ADF4252BCPZ-RL	507Kb / 30P	Dual Fractional-N/Integer-N Frequency Synthesizer Rev. E

More results

Аналогичное описание - ADF4252BCP

производитель	номер детали	датащи	подробное описание детали
Hynix Semiconductor	HM6F5201	328Kb / 25P	Dual Fractional-N / Integer-N Frequency Synthesizer
Analog Devices	ADF4251	424Kb / 28P	Dual Fractional-N/Integer-N Frequency Synthesizer REV.0
	ADF4150	818Kb / 28P	Fractional-N/Integer-N PLL Synthesizer 7/11-Revision 0
	ADF4151	462Kb / 28P	Fractional-N/Integer-N PLL Synthesizer REV. B
	ADF4150BCPZ	486Kb / 28P	Fractional-N/Integer-N PLL Synthesizer REV. 0
	ADF4251	440Kb / 28P	Dual Fractional-N/Integer-N Frequency Synthesizer REV. 0
	ADF4252	497Kb / 28P	Dual Fractional-N/Integer-N Frequency Synthesizer REV. B
	ADF4155	530Kb / 32P	Integer-N/Fractional-N PLL Synthesizer 4/14-Revision 0
	ADF41513	565Kb / 33P	Integer N/Fractional-N, PLL Synthesizer
	ADF4252	507Kb / 30P	Dual Fractional-N/Integer-N Frequency Synthesizer Rev. E

More results

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