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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
Σ
-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
Ω 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
Rev A7 DS061115
RF2484Direct
Quadrature
Modulator
RoHS Compliant & Pb-Free Product
Package Style: QFN, 16-pin, 4x4
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