RFFC5071A Datasheet, PDF (1/26 Pages) RF Micro Devices – WIDEBAND SYNTHESIZER/VCO WITH INTEGRATED 6GHz MIXER

RFFC5071A
RFFC5071A/2A
WIDEBAND SYNTHESIZER/VCO WITH
INTEGRATED 6GHz MIXER
Package: QFN, 32-Pin, 5mm x 5mm
RFFC5072A
Features
 85MHz to 4200MHz 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
• 0.52° rms at 3GHz
 High Linearity RF Mixer(s)
 30MHz to 6000MHz Mixer
Frequency Range
 Input IP3 +23dBm
 Mixer Bias Adjustable for Low
Power Operation
 Full Duplex Mode (RFFC5071A)
 2.7V to 3.3V Power Supply
 Low Current Consumption
 3- or 4-Wire Serial Interface
Applications
 Wideband Radios
 Distributed Antenna Systems
 Diversity Receivers
 Software Defined Radios
 Frequency Band Shifters
 Point-to-Point Radios
 WiMax/LTE Infrastructure
 Satellite Communications
 Wideband Jammers
 Remote Radio Heads
Phase
det.
Synth
Ref.
divider
Phase
det.
Synth
Ref.
divider
Functional Block Diagram
Product Description
The RFFC5071A and RFFC5072A 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 VCO features temperature com-
pensation circuits that deliver stable performance across the operating tempera-
ture 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
4200MHz. The LO signal is buffered and routed to the integrated RF mixers which
are used to up/down-convert frequencies ranging from 30MHz to 6000MHz. The
mixer bias current is programmable and can be reduced for applications 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 inter-
nal 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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7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
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