5-31
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
*
*
*
*
* Represents "GND".
3
ISIG P
2
VCC2
1
VCC3
4
ISIG N
5
EN
6
7
8
9
10
11 BAND SEL
12 QSIG N
13 QSIG P
14 VREF
15 GC DEC
16
17
18
19
20
Σ
Mode
Control
&
Biasing
Power
Control
+45°
-45°
+45°
-45°
RF2483
LOW NOISE DUAL-BAND QUADRATURE
MODULATOR WITH AGC
• TDMA/GSM/EDGE Handsets
• GSM/EDGE Handsets
• W-CDMA Handsets
• TDMA-Based Wireless Applications
• Wireless Local Loop
• Basestations
The RF2483 is a dual-band direct I/Q to RF modulator
designed for handset applications where multiple modes
of operation are required. The device provides common
differential I/Q inputs and a common AGC amplifier. Inde-
pendent single-ended LO inputs and single-ended high
and low band RF outputs are provided. The device
achieves a very low out-of-band noise density of
-156dBm/Hz minimizing RF filtering. Operating from a
single 2.7V supply, the device is assembled in a
4mmx4mm, 20-pin, QFN package.
• Dual-Band Operation 700-2400MHz
• -156dBm/Hz noise@20MHz offset
• +19dBm OIP3
•+6dBm OP1dB
• 35dB Gain Control Range
• Single 2.7V to 3.3V Supply
RF2483
Low Noise Dual-Band Quadrature Modulator with
AGC
RF2483 PCBA
Fully Assembled Evaluation Board
0
Rev A8 060203
2 PLCS
0.10 C B
2 PLCS
0.10 C A
2.00 TYP
-A-
2 PLCS
0.10 C A
4.00 SQ.
-B-
1.87 TYP
3.75 SQ.
2 PLCS
0.10 C B
0.05
0.00
0.90
0.85
0.05 C
0.70
0.65
12°
MAX
-C-
SEATING
PLANE
Dimensions in mm.
NOTES:
1. Shaded lead is Pin 1.
Dimension applies to plated terminal:
to be measured between 0.20 mm and 0.25 mm
from terminal end.
2
2.25
1.95
SQ.
0.50
0.60
0.24
TYP
0.75
0.50
TYP
PIN 1 ID
0.20 R
0.10
C AB
M
0.30
0.18
2
Package Style: QFN, 20-Pin, 4x4
RoHS Compliant & Pb-Free Product
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