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Optimum Technology Matching® Applied

GaAs HBT

InGaP HBT

GaAs MESFET

SiGe BiCMOS

Si BiCMOS

SiGe HBT

GaAs pHEMT

Si CMOS

Si BJT

GaN HEMT

Functional Block Diagram

RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-

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.

Product Description

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.

BiFET HBT

LDMOS



Synth

Phase

det.

Ref.

divider

RFFC2071

Synth

Phase

det.

Ref.

divider

RFFC2072

RFFC2071/2072

2.7GHz RF SYNTHESIZER/VCO WITH

INTEGRATED RF MIXER

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.

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

DS140110

Package: QFN, 32-Pin, 5mm x 5mm