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RF2056 Datasheet دیتاشیت PDF دانلود

دیتاشیت - RFMD - HIGH PERFORMANCE VHF/UHF PLL AND VCO

شماره قطعه RF2056
شرح مفصل HIGH PERFORMANCE VHF/UHF PLL AND VCO
تولید کننده RFMD 
آرم RFMD 


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RF2056 شرح
RF2056High
Performance
VHF/UHF PLL
and VCO with
Integrated Mix-
ers
RF2056
HIGH PERFORMANCE VHF/UHF PLL AND VCO WITH
INTEGRATED MIXERS
Package: QFN, 32-Pin, 5mmx5mm
Features
Fractional-N Synthesizer
Very Fine Frequency Resolution
1.5Hz for 26MHz Reference
LO Frequency Range Between
50MHz and 500MHz
Low Phase Noise VCO
VCO Range 200MHz to 500MHz
Dependent on External Inductor
Integrated LO Buffers and LO
Dividers
On-Chip Crystal-Sustaining
Circuit With Programmable
Loading Capacitors
Two High-Linearity RF Mixers
Mixer Frequency Range 30MHz
to 500MHz
Mixer Input IP3 +25dBm
Mixer Bias Adjustable for Low
Power Operation
2.7V to 3.6V Power Supply
Low Current Consumption
45mA to 65mA at 3V
3-Wire Serial Interface
Applications
VHF/UHF Radios
Super-Heterodyne Radios
Diversity Receivers
Wireless Telemetry
PMR
Marine Radios
VCO
LO
divider
Synth
Frac-N
sequence
generator
Charge
pump
Ref
divider
N
divider
Phase /
freq
detector
Sw
LO
divider
Functional Block Diagram
Product Description
The RF2056 is a low power, high performance, VHF/UHF frequency conversion chip
with integrated local oscillator (LO) generation and a pair of mixers. The synthesizer
includes an integrated fractional-N phase locked loop that can control the VCO to
produce a low phase noise and low spurious LO signal with very fine frequency res-
olution. The V CO output can then be divided by one, two, or four in the LO divider,
the output of which drives the mixer, which converts the signal into the required fre-
quency band. The mi xer bias curren t can be pr ogrammed depe ndent on the
required pe rformance an d available su pply cu rrent. T he LO generation block has
been designed to operate with the VCO covering the frequency range from 200MHz
to 500 MHz, dependant on the value of th e e xternal in ductor used. With the L O
dividers, the L O rang e a chievable is w ithin the range of 50 MHz to 500 MHz. The
mixer is broadband and can operate from 30 MHz to 500 MHz at the input and out-
put, enabling both up and down conversion. An external crystal of between 10MHz
and 26MHz, or an external reference source of between 10MHz and 104MHz, can
be used with the RF2056 to accommodate a variety of reference frequency options.
All on-chip registers are controlled through a simple three-wire serial interface. The
RF2056 is designed for 2.7V to 3.6V operation. It is available in a plastic 32-pin,
5mmx5m m QFN package.
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
RF MEMS
DS130807
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. ©2006, RF Micro Devices, Inc.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
http://www.Datasheet4U.com
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