1 of 12

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.

Ordering Information

GND

GND

VCC

GND

GND

LO



-45°

+45°

5

13

12

11

10

14

7

8

6

9

15

16

1

2

3

4

RF2484

DIRECT QUADRATURE MODULATOR

The RF2484 is a monolithic integrated quadrature modulator IC capable

of universal direct modulation for high-frequency AM, PM, or compound

carriers. This low-cost IC features excellent linearity, noise floor, and

over-temperature carrier suppression performance. The device imple-

ments differential amplifiers for the modulation inputs, 90° carrier phase

shift network, carrier limiting amplifiers, two matched double-balanced

mixers, summing amplifier, and an output RF amplifier which will drive

50

 from 800MHz to 2500MHz. It is packaged in a small industry-stan-

dard QFN 16-pin plastic package.

Features



Typical Carrier

Suppression>35dBc, Side-

band Suppression>35dBc

over temperature with highly

linear operation



Noise Floor better than -

152dBm/Hz from 800MHz to

2200MHz



Single 5V Power Supply

Applications



Dual-Band CDMA Base Sta-

tions



TDMA/TDMA-EDGE Base Sta-

tions



GSM-EDGE/EGSM Base Sta-

tions



W-CDMA Base Stations



WLAN and WLL Systems



GMSK,QPSK,DQPSK,QAM

Modulation

RF2484

Direct Quadrature Modulator

RF2484PCBA-410

Fully Assembled Evaluation Board

DS121024



RF2484Direct

Quadrature

Modulator

RoHS Compliant & Pb-Free Product

Package Style: QFN, 16-pin, 4x4