Datasheet > EVAL-ADF4351EB1Z

EVAL-ADF4351EB1Z

更新时间： 2024-11-27 07:18:47

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	577K
描述
Wideband Synthesizer

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数据手册

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EVAL-ADF4351EB1Z 数据手册

Wideband Synthesizer

with Integrated VCO

ADF4351

Data Sheet

FEATURES

GENERAL DESCRIPTION

Output frequency range: 35 MHz to 4400 MHz

Fractional-N synthesizer and integer-N synthesizer

Low phase noise VCO

The ADF4351 allows implementation of fractional-N or integer-N

phase-locked loop (PLL) frequency synthesizers when used with

an external loop filter and external reference frequency.

Programmable divide-by-1/-2/-4/-8/-16/-32/-64 output

Typical jitter: 0.3 ps rms

Typical EVM at 2.1 GHz: 0.4%

Power supply: 3.0 V to 3.6 V

Logic compatibility: 1.8 V

Programmable dual-modulus prescaler of 4/5 or 8/9

Programmable output power level

RF output mute function

The ADF4351 has an integrated voltage controlled oscillator (VCO)

with a fundamental output frequency ranging from 2200 MHz to

4400 MHz. In addition, divide-by-1/-2/-4/-8/-16/-32/-64 circuits

allow the user to generate RF output frequencies as low as 35 MHz.

For applications that require isolation, the RF output stage can be

muted. The mute function is both pin- and software-controllable.

An auxiliary RF output is also available, which can be powered

down when not in use.

3-wire serial interface

Control of all on-chip registers is through a simple 3-wire interface.

The device operates with a power supply ranging from 3.0 V to

3.6 V and can be powered down when not in use.

Analog and digital lock detect

Switched bandwidth fast lock mode

Cycle slip reduction

APPLICATIONS

Wireless infrastructure (W-CDMA, TD-SCDMA, WiMAX,

GSM, PCS, DCS, DECT)

Test equipment

Wireless LANs, CATV equipment

Clock generation

FUNCTIONAL BLOCK DIAGRAM

SDV

VCO

SET

MULTIPLEXER

MUXOUT

10-BIT R

COUNTER

÷2

DIVIDER

×2

REF

DOUBLER

LOCK

DETECT

FAST LOCK

SWITCH

CLK

DATA

DATA REGISTER

FUNCTION

LATCH

CHARGE

PUMP

OUT

PHASE

COMPARATOR

TUNE

REF

VCO

CORE

COM

TEMP

INTEGER

VALUE

FRACTION

VALUE

MODULUS

VALUE

A+

A–

OUT

OUTPUT

STAGE

THIRD-ORDER

FRACTIONAL

INTERPOLATOR

÷1/2/4/8/16/

32/64

PDB

B+

B–

OUTPUT

STAGE

OUT

N COUNTER

MULTIPLEXER

ADF4351

AGND

DGND

GND

GNDVCO

GND

Figure 1.

Rev. 0

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. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

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

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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