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RF2483PCBA

LOW NOISE DUAL-BAND QUADRATURE MODULATOR WITH AGC

RF Micro Devices 

RF2483

0

LOW NOISE DUAL-BAND QUADRATURE

MODULATOR WITH AGC

RoHS Compliant & Pb-Free Product

Typical Applications

• TDMA/GSM/EDGE Handsets

• GSM/EDGE Handsets

• W-CDMA Handsets

• TDMA-Based Wireless Applications

• Wireless Local Loop

• Basestations

Product Description

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.

Optimum Technology Matching® Applied

Si BJT

GaAs HBT

GaAs MESFET

Si Bi-CMOS

InGaP/HBT

SiGe HBT

Si CMOS

9 GaN HEMT

SiGe Bi-CMOS

* 20 19 18 17 16 *

VCC3 1 Mode

15 GC DEC

Control

Power

&

Control

VCC2 2 Biasing

Σ

14 VREF

ISIG P 3

13 QSIG P

ISIG N 4

12 QSIG N

EN 5

+45°

-45°

+45°

11 BAND SEL

-45°

6 7 8 9 10

*

*

* Represents "GND".

Functional Block Diagram

-A-

4.00 SQ.

0.10 C A

2 PLCS

2.00 TYP

0.10 C B

2 PLCS

0.90

0.85

0.05

0.00

0.05 C

0.70

0.65

0.10 C B

2 PLCS

0.10 C A

2 PLCS

3.75 SQ.

-B-

1.87 TYP

Dimensions in mm.

NOTES:

1. Shaded lead is Pin 1.

2 Dimension applies to plated terminal:

to be measured between 0.20 mm and 0.25 mm

from terminal end.

0.60

0.24

TYP

12°

MAX

SEATING

PLANE

-C-

0.10 M C A B

0.30

0.18

2

PIN 1 ID

0.20 R

0.75

21..2955SQ.

0.50

TYP

0.50

Package Style: QFN, 20-Pin, 4x4

Features

• 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

Ordering Information

RF2483

RF2483 PCBA

Low Noise Dual-Band Quadrature Modulator with

AGC

Fully Assembled Evaluation Board

RF Micro Devices, Inc.

7628 Thorndike Road

Greensboro, NC 27409, USA

Tel (336) 664 1233

Fax (336) 664 0454

http://www.rfmd.com

Rev A8 060203

5-31

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