RF2402
5
UHF QUADRATURE MODULATOR
Typical Applications
• Digital and Spread-Spectrum Systems
• AM, SSB, DSB Modulation
• GMSK, QPSK, DQPSK, QAM Modulation
• Image-Reject Upconverters
• GSM and D-AMPS Cellular Systems
Product Description
.157
.150
1
GaAs HBT
Si Bi-CMOS
SiGe HBT
ü
.010
.004
5
.344
.337
.050
.244
.228
.065
.043
8 °MAX
0°MIN
.050
.016
Optimum Technology Matching® Applied
Si BJT
.018
.014
MODULATORS AND
UPCONVERTERS
The RF2402 is a monolithic integrated universal modulation system capable of generating modulated AM, PM, or
compound carriers in the UHF frequency range. The IC
contains all of the required components to implement the
modulation function including differential amplifiers for the
baseband inputs, a 90° hybrid phase splitter, limiting LO
amplifiers, two balanced mixers, a combining amplifier,
and an output RF amplifier which will drive a 50Ω load.
Component matching, which can only be accomplished
with monolithic construction, is used to full advantage to
obtain excellent amplitude balance and high phase accuracy. The unit features low power consumption, single
power supply operation, and adjustment free operation
with no external parts required to operate the part as
specified.
.010
.007
Package Style: SOP-14
GaAs MESFET
Si CMOS
Features
• Single 3V to 5V Power Supply
• Low Power and Small Size
14 RF OUT
VDD1 2
POWER
CONTROL
• CMOS Compatible Power Down Control
13 GND2
VDD2 1
• Excellent Amplitude and Phase Balance
VPD 3
12 GND
I SIG 4
• Low Broadband Noise Floor
11 GND
• 600MHz to 1000MHz Operation
I REF 5
Σ
10 GND1
+45°
-45°
Q REF 6
9 PHASE
Q SIG 7
8 LO IN
Functional Block Diagram
Rev B1 010329
Ordering Information
RF2402
RF2402 PCBA
UHF Quadrature Modulator
Fully Assembled Evaluation Board
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
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