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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
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
Σ
POWER
CONTROL
-45°
+45°
I REF
Q REF
GND2
GND2
GND2
LO
VCC1
PD
I SIG
Q SIG
GND1
GND1
GND1
VCC2
GND1
RF OUT
RF2480
DIRECT QUADRATURE MODULATOR
The RF2480 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. Component matching is used to obtain
excellent amplitude balance and phase accuracy.
Features
Typical Carrier
Suppression>35dBc over
temperature with highly linear
operation
Single 5V Power Supply
Integrated RF quadrature net-
work
Digitally controlled Power
Down mode
800MHz to 2500MHz opera-
tion
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
TETRA Systems
RF2480
Direct Quadrature Modulator
RF2480 PCBA
Fully Assembled Evaluation Board
Rev A4 DS060329
RF2480Direct
Quadrature
Modulator
RoHS Compliant & Pb-Free Product
Package Style: SOIC-16
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