ADF4002BCPZ-RL7

更新时间： 2024-02-26 12:25:15

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
24页	457K
描述
Phase Detector/Frequency Synthesizer

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ADF4002BCPZ-RL7 数据手册

Phase Detector/Frequency Synthesizer

ADF4002

FEATURES

GENERAL DESCRIPTION

400 MHz bandwidth

2.7 V to 3.3 V power supply

Separate charge pump supply (V_P) allows extended

tuning voltage in 3 V systems

Programmable charge pump currents

3-wire serial interface

Analog and digital lock detect

Hardware and software power-down mode

200 MHz phase detector

The ADF4002 frequency synthesizer is used to implement local

oscillators in the upconversion and downconversion sections of

wireless receivers and transmitters. It consists of a low-noise

digital phase frequency detector (PFD), a precision charge

pump, a programmable reference divider, and programmable

N divider. The 14-bit reference counter (R counter), allows

selectable REFIN frequencies at the PFD input. A complete

phase-locked loop (PLL) can be implemented if the synthesizer

is used with an external loop filter and voltage controlled

oscillator (VCO). In addition, by programming R and N to 1,

the part can be used as a stand alone PFD and charge pump.

APPLICATIONS

Clock conditioning

Clock generation

IF LO generation

FUNCTIONAL BLOCK DIAGRAM

SET

CPGND

REFERENCE

14-BIT

R COUNTER

PHASE

FREQUENCY

DETECTOR

REF

CHARGE

PUMP

R COUNTER

LATCH

LOCK

DETECT

CURRENT

SETTING 2

CURRENT

SETTING 1

CLK

DATA

24-BIT INPUT

FUNCTION

LATCH

CPI6 CPI5 CPI4

HIGH Z

CPI3 CPI2 CPI1

N COUNTER

LATCH

OUT

MUXOUT

MUX

OUT

13-BIT

N COUNTER

M3 M2 M1

ADF4002

AGND DGND

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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