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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
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
I REF
Q REF
GND2
GND2
GND2
LO
VCC1
PD
I SIG
Q SIG
GND1
GND1
GND1
VCC2
GND1
RF OUT
Σ
POWER
CONTROL
-45°
+45°
RF2422
2.5GHZ DIRECT QUADRATURE MODULATOR
The RF2422 is a monolithic integrated quadrature modulator IC capable
of universal direct modulation for high-frequency AM, PM, or compound
carriers. This low-cost IC implements differential amplifiers for the modu-
lation 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, which can only be accomplished with monolithic construction,
is used to full advantage to obtain excellent amplitude balance and phase
accuracy.
Features
Single 5V Power Supply
Integrated RF Quadrature
Network
No Tuning Required
Low LO Input Level
Digitally Controlled Power
Down Mode
800MHz to 2500MHz Opera-
tion
Applications
Digital Communications Sys-
tems
Spread-Spectrum Communi-
cation Systems
GMSK,QPSK,DQPSK,QAM
Modulation
GSM, DCS 1800, JDC, D-
AMPS Systems
Commercial and Consumer
Systems
RF2422
2.5GHz Direct Quadrature Modulator
RF2422PCBA-41X
Fully Assembled Evaluation Board
Rev A6 DS070817
RoHS Compliant & Pb-Free Product
Package Style: SOIC-16
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