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Product Description
Ordering Information
Typical Applications
Features
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Optimum Technology Matching® Applied
Si BJT
GaAs MESFET
GaAs HBT
Si Bi-CMOS
SiGe HBT
Si CMOS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IREF
QREF
GND2
GND2
GND2
LO
VCC1
PD
ISIG
QSIG
GND1
GND1
GND1
VCC2
GND1
RF OUT
Σ
POWER
CONTROL
-45°
+45°
RF2422
2.5GHZ DIRECT QUADRATURE MODULATOR
• Digital Communications Systems
• Spread-Spectrum Communication Systems
• GMSK,QPSK,DQPSK,QAM Modulation
• GSM, DCS 1800, JDC, D-AMPS Systems
• Commercial and Consumer Systems
The RF2422 is a monolithic integrated quadrature modu-
lator IC capable of universal direct modulation for high-
frequency AM, PM, or compound carriers. This low-cost
IC implements differential amplifiers for the modulation
inputs, 90° carrier phase shift network, carrier limiting
amplifiers, two matched double-balanced mixers, sum-
ming amplifier, and an output RF amplifier which will drive
50
Ω from 800MHz to 2500MHz. Component matching,
which can only be accomplished with monolithic con-
struction, is used to full advantage to obtain excellent
amplitude balance and phase accuracy.
• Single 5V Power Supply
• Integrated RF Quadrature Network
• No Tuning Required
• Low LO Input Level
• Digitally Controlled Power Down Mode
• 800MHz to 2500MHz Operation
RF2422
2.5GHz Direct Quadrature Modulator
RF2422 PCBA
Fully Assembled Evaluation Board
5
Rev A5 010817
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding
mold flash.
3. Lead coplanarity - 0.005 with
respect to datum "A".
0.050
0.018
0.014
0.157
0.150
0.393
0.386
0.244
0.229
8° MAX
0° MIN
0.034
0.016
0.009
0.007
0.068
0.053
0.008
0.004
-A-
Package Style: SOIC-16
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