
5-29
5
M
U
Produc t Desc ription
Ordering Information
Typic al Applic ations
Features
Func tional 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 HBT
Si Bi-CMOS
SiGe HBT
GaAs MESFET
Si CMOS
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
2.5 GHZ DIR ECT QUADR AT UR E MODULAT OR
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
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
RF2422 PCBA
2.5GHz Direct Quadrature Modulator
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: S OIC-16