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Analog Devices - Fractional-N/Integer-N PLL Synthesizer

Numéro de référence ADF4150HV
Description Fractional-N/Integer-N PLL Synthesizer
Fabricant Analog Devices 
Logo Analog Devices 





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ADF4150HV fiche technique
High Voltage, Fractional-N/
Integer-N PLL Synthesizer
ADF4150HV
FEATURES
Fractional-N synthesizer and integer-N synthesizer
High voltage charge pump: VP = 6 V to 30 V
Tuning range: 1.0 V to 29 V (or ±1 V from VP supply rails)
RF bandwidth to 3.0 GHz
Programmable divide-by-1/-2/-4/-8/-16 outputs
Synthesizer power supply: 3.0 V to 3.6 V
Programmable dual-modulus prescaler of 4/5 or 8/9
Programmable output power level
Programmable charge pump currents
RF output mute function
3-wire serial interface
Analog and digital lock detect
APPLICATIONS
Wireless infrastructure
Microwave point-to-point/point-to-multipoint radios
VSAT radios
Test equipment
Private land mobile radios
GENERAL DESCRIPTION
The ADF4150HV is a 3.0 GHz, fractional-N or integer-N
frequency synthesizer with an integrated high voltage charge
pump. The synthesizer can be used to drive external wideband
VCOs directly, eliminating the need for operational amplifiers
to achieve higher tuning voltages. This simplifies design and
reduces cost while improving phase noise, in contrast to active
filter topologies, which tend to degrade phase noise compared
to passive filter topologies.
The VCO frequency can be divided by 1, 2, 4, 8, or 16 to allow
the user to generate RF output frequencies as low as 31.25 MHz.
For applications that require isolation, the RF output stage can be
muted. The mute function is both pin- and software-controllable.
A simple 3-wire interface controls all on-chip registers. The
charge pump operates from a power supply ranging from 6 V to
30 V, whereas the rest of the device operates from 3.0 V to 3.6 V.
The ADF4150HV can be powered down when not in use.
SDVDD
FUNCTIONAL BLOCK DIAGRAM
AVDD
DVDD
VP
RSET
REFIN
CLK
DATA
LE
×2
DOUBLER
10-BIT R
COUNTER
÷2
DIVIDER
DATA REGISTER
FUNCTION
LATCH
INTEGER FRACTION MODULUS
VALUE
VALUE
VALUE
THIRD-ORDER
FRACTIONAL
INTERPOLATOR
N COUNTER
LOCK
DETECT
MULTIPLEXER
HIGH VOLTAGE
CHARGE
PUMP
PHASE
COMPARATOR
CURRENT
SETTING
DIVIDE-BY-1/
-2/-4/-8/-16
MULTIPLEXER
MUXOUT
LD
BOOST
MODE
OUTPUT
STAGE
RF
INPUT
CPOUT
RFOUT+
RFOUT
PDBRF
RFIN+
RFIN
CE
Figure 1.
GND
CPGND SDGND
ADF4150HV
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.
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
©2011 Analog Devices, Inc. All rights reserved.
Free Datasheet http://www.datasheet4u.com/

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