RFFC2071 Datasheet, PDF (1/23 Pages) RF Micro Devices – 2.7GHz RF SYNTHESIZER/VCO WITH INTEGRATED RF MIXER

RFFC2071
RFFC2071/2072
2.7GHz RF SYNTHESIZER/VCO WITH
INTEGRATED RF MIXER
Package: QFN, 32-Pin, 5mm x 5mm
RFFC2072
Features
 85MHz to 2700MHz LO
Frequency Range
 Fractional-N Synthesizer with
Very Low Spurious Levels
 Typical Step Size 1.5Hz
 Fully Integrated Low Phase Noise
VCO and LO Buffers
 Integrated Phase Noise
0.18°rms at 1GHz
 High Linearity RF Mixer(s)
 30MHz to 2700MHz Mixer
Frequency Range
 Input IP3 +23dBm
 Mixer Bias Adjustable for Low
Power Operation
 Full Duplex Mode (RFFC2071)
 2.7V to 3.3V Power Supply
 Low Current Consumption
 3- or 4-Wire Serial Interface
Applications
 CATV Head-Ends
 Digital TV Repeaters
 Multi-Dwelling Units
 Diversity Receivers
 Software Defined Radios
 Frequency Band Shifters
 Point-to-Point Radios
 Cellular Repeaters
 WiMax/LTE Infrastructure
 Cellular Jammers
 Satellite Communications
 VHF/UHF Radios
Phase
det.
Synth
Ref.
divider
Phase
det.
Synth
Ref.
divider
Functional Block Diagram
Product Description
The RFFC2071 and RFFC2072 are re-configurable frequency conversion devices
with integrated fractional-N phased locked loop (PLL) synthesizer, voltage con-
trolled oscillator (VCO) and either one or two high linearity mixers. The fractional-N
synthesizer takes advantage of an advanced sigma-delta modulator that delivers
ultra-fine step sizes and low spurious products. The PLL/VCO engine combined with
an external loop filter allows the user to generate local oscillator (LO) signals from
85MHz to 2700MHz. The LO signal is buffered and routed to the integrated RF mix-
ers which are used to up/down-convert frequencies ranging from 30MHz to
2700MHz. The mixer bias current is programmable and can be reduced for applica-
tions requiring lower power consumption. Both devices can be configured to work
as signal sources by bypassing the integrated mixers. Device programming is
achieved via a simple 3-wire serial interface. In addition, a unique programming
mode allows up to four devices to be controlled from a common serial bus. This
eliminates the need for separate chip-select control lines between each device and
the host controller. Up to six general purpose outputs are provided, which can be
used to access internal signals (the LOCK signal, for example) or to control front
end components. Both devices operate with a 2.7V to 3.3V power supply.
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
BiFET HBT
LDMOS
DS140110
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mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2012, RF Micro Devices, Inc.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
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