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ADF4002BRUZ-RL7 Folha de dados(PDF) 1 Page - Analog Devices

Nome de Peças ADF4002BRUZ-RL7
Descrição Electrónicos  Phase Detector/Frequency Synthesizer
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
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Phase Detector/Frequency Synthesizer
ADF4002
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
FEATURES
400 MHz bandwidth
2.7 V to 3.3 V power supply
Separate charge pump supply (VP) 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
APPLICATIONS
Clock conditioning
Clock generation
IF LO generation
GENERAL DESCRIPTION
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.
FUNCTIONAL BLOCK DIAGRAM
CLK
DATA
LE
REFIN
RFINA
RFINB
24-BIT INPUT
REGISTER
SDOUT
AVDD
DVDD
CE
AGND DGND
14-BIT
R COUNTER
R COUNTER
LATCH
22
14
FUNCTION
LATCH
N COUNTER
LATCH
13-BIT
N COUNTER
M3 M2 M1
MUX
SDOUT
AVDD
HIGH Z
MUXOUT
CPGND
RSET
VP
CP
PHASE
FREQUENCY
DETECTOR
LOCK
DETECT
REFERENCE
CHARGE
PUMP
CURRENT
SETTING 1
ADF4002
CPI3 CPI2 CPI1
CPI6 CPI5 CPI4
CURRENT
SETTING 2
Figure 1.


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