RFFC2071A Datasheet, PDF (1/22 Pages) RF Micro Devices – 2.7GHz RF SYNTHESIZER/VCO WITH INTEGRATED RF MIXER

RFFC2071A/2A
2.7GHz RF SYNTHESIZER/VCO WITH
INTEGRATED RF MIXER
Package: QFN, 32-Pin, 5mm x 5mm
RFFC2071A
RFFC2072A
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 (RFFC2071A)
 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 RFFC2071A and RFFC2072A are re-configurable frequency conversion devices
with integrated fractional-N phased locked loop (PLL) synthesizer, voltage controlled
oscillator (VCO) and either one or two high linearity mixers. The fractional-N synthe-
sizer takes advantage of an advanced sigma-delta modulator that delivers ultra-fine
step sizes and low spurious products. The VCO features temperature compensation
circuits that deliver stable performance across the operating temperature range of
-40°C to +85°C. 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 mixers which are used to
up/down-convert frequencies ranging from 30MHz to 2700MHz. The mixer bias cur-
rent is programmable and can be reduced for applications requiring lower power
consumption. Both devices can be configured to work as signal sources by bypass-
ing 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
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.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
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