5-23
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
InGaP/HBT
GaN HEMT
SiGe Bi-CMOS
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
• Dual-Band CDMA Base Stations
• TDMA/TDMA-EDGE Base Stations
• GSM-EDGE/EGSM Base Stations
• W-CDMA Base Stations
• WLAN and WLL Systems
• TETRA Systems
The RF2480 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 features excellent linearity, noise floor, and over-tem-
perature carrier suppression performance. The device
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 is
used to obtain excellent amplitude balance and phase
accuracy.
• Typical Carrier Suppression>35dBc over
temperature with highly linear operation
• Single 5V Power Supply
• Integrated RF quadrature network
• Digitally controlled Power Down mode
• 800MHz to 2500MHz operation
RF2480
Direct Quadrature Modulator
RF2480 PCBA
Fully Assembled Evaluation Board
0
Rev A4 060329
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
RoHS Compliant & Pb-Free Product
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