1 of 37

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. ©2006, 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 sales-support@rfmd.com.

RF MEMS

LDMOS



VCO

LO

divider

Frac-N

sequence

generator

N divider

Phase /

freq

detector

Charge

pump

Ref

divider

Synth

Mixer

RF2052

HIGH PERFORMANCE WIDEBAND RF

PLL/VCO WITH INTEGRATED RF MIXER

The RF2052 is a low power, high performance, wideband RF frequency conversion

chip with integrated local oscillator (LO) generation and RF mixer. The RF synthe-

sizer includes an integrated fractional-N phase locked loop with voltage controlled

oscillators (VCOs) and dividers to produce a low-phase noise LO signal with a very

fine frequency resolution. The buffered LO output drives the built-in RF mixer which

converts the signal into the required frequency band. The mixer bias current can be

programmed dependent on the required performance and available supply current.

The LO generation blocks have been designed to continuously cover the frequency

range from 300MHz to 2400MHz. The RF mixer is very broad band and operates

from 30MHz to 2500MHz at the input and output, enabling both up and down con-

version. An external crystal of between 10MHz and 52MHz or an external reference

source of between 10MHz and 104MHz can be used with the RF2052 to accom-

modate a variety of reference frequency options.

All on-chip registers are controlled through a simple three-wire serial interface. The

RF2052 is designed for 2.7V to 3.6V operation for compatibility with portable, bat-

tery powered devices. It is available in a plastic 32-pin, 5mmx5mm QFN package.

Features



30MHz to 2.5GHz Frequency

Range



Fractional-N Synthesizer



Very Fine Frequency Resolution

1.5Hz for 26MHz Reference



Low Phase Noise VCO



On-Chip Crystal-Sustaining

Circuit With Programmable

Loading Capacitors



High-Linearity RF Mixer



Integrated LO Buffer



Mixer Input IP3 +18dBm



Mixer Bias Adjustable for Low

Power Operation



2.7V to 3.6V Power Supply



Low Current Consumption

55mA to 75mA at 3V



3-Wire Serial Interface

Applications



CATV Head-Ends



Digital TV Up/Down Converters



Digital TV Repeaters



Multi-Dwelling Units



Cellular Repeaters



Frequency Band Shifters



UHF/VHF Radios



Software Defined Radios



Satellite Communications



Super-Heterodyne Radios



BPSK Modulator

DS140110

Package: QFN, 32-Pin, 5mmx5mm