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RFFC5071 Schematic ( PDF Datasheet ) - RF Micro Devices

Teilenummer RFFC5071
Beschreibung WIDEBAND SYNTHESIZER/VCO
Hersteller RF Micro Devices
Logo RF Micro Devices Logo 




Gesamt 20 Seiten
RFFC5071 Datasheet, Funktion
ProposedRFFC5071/50
72 Wideband
Synthe-
sizer/VCO with
Integrated
6GHz Mixer
RFFC5071/5072
WIDEBAND SYNTHESIZER/VCO WITH
INTEGRATED 6GHz MIXER
Package: QFN, 32-Pin, 5mmx5mm
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
High Linearity RF Mixer(s)
30MHz to 6000MHz Mixer
Frequency Range
Input IP3 +23dBm
Mixer Bias Adjustable for Low
Power Operation
Full Duplex Mode (RFFC5071)
2.7V to 3.3V Power Supply
Low Current Consumption
3- or 4-Wire Serial Interface
Applications
Diversity Receivers
Software Defined Radios
Wideband Radios
Frequency Band Shifters
Point-to-Point Radios
WiMax/LTE Infrastructure
Satellite Communications
Functional Block Diagram
Product Description
The RFFC5071 and RFFC5072 are reconfigurable 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 4200MHz. The LO signal is buffered and routed to the integrated RF mix-
ers which are used to convert frequencies ranging from 30 MHz to 6000 MHz. 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 inte-
grated 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 out-
puts are provided, which can be used to access internal signals (e.g. the LOCK sig-
nal) 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
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. ©2010, RF Micro Devices, Inc.
Prelim DS101020
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
http://www.Datasheet4U.com
1 of 20






RFFC5071 Datasheet, Funktion
RFFC5071/5072
Proposed
RFFC5071 Pin Out
RFFC5072 Pin Out
6 of 20
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
Prelim DS101020

6 Page









RFFC5071 pdf, datenblatt
RFFC5071/5072
Proposed
Typical Performance Characteristics: VCO
VDD=+3V and TA=+27°C unless stated.
VCO1 Frequency versus Tuning Voltage
For the same coarse tune setting, LO divide by two
1505
VCO2 Frequency versus Tuning Voltage
For the same coarse tune setting, LO divide by two
2020
1500
1495
2015
2010
2005
1490
2000
1485
1480
-40 Deg C
+27 Deg C
+85 Deg C
1995
1990
1985
-40 Deg C
+27 Deg C
+85 Deg C
1475
0.0
0.5 1.0
Tuning Voltage (Volts)
1.5
1980
0.0
0.5 1.0
Tuning Voltage (Volts)
1.5
VCO3 Frequency versus Tuning Voltage
For the same coarse tune setting, LO divide by two
2515
2510
2505
2500
2495
2490
2485
2480
2475
2470
-40 Deg C
+27 Deg C
+85 Deg C
2465
0.0
0.5 1.0
Tuning Voltage (Volts)
1.5
12 of 20
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
Prelim DS101020

12 Page





SeitenGesamt 20 Seiten
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