RF2484 データシートの表示（PDF） - RF Micro Devices

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RF2484

DIRECT QUADRATURE MODULATOR

RF Micro Devices 

Preliminary

5

RF2484

DIRECT QUADRATURE MODULATOR

Typical Applications

• Dual-Band CDMA Base Stations

• TDMA/TDMA-EDGE Base Stations

• GSM-EDGE/EGSM Base Stations

• W-CDMA Base Stations

• WLAN and WLL Systems

• GMSK,QPSK,DQPSK,QAM Modulation

Product Description

The RF2484 is a monolithic integrated quadrature modu-

3.75

lator IC capable of universal direct modulation for high-

2

1

0.45

0.80

0.28

0.75

TYP

1

0.50

5

frequency AM, PM, or compound carriers. This low-cost

IC features excellent linearity, noise floor, and over-tem-

3.75

+

1.60 4.00

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

50Ω from 800MHz to 2500MHz. It is packaged in a small

industry-standard LCC 16-pin plastic package.

12°

INDEX AREA 3

Dimensions in mm.

0.75 1.00

0.65 0.90

0.05

0.00

1.50 SQ

3.20

4.00

NOTES:

1 Shaded Pin is Lead 1.

2

Dimension applies to plated terminal and is measured between

0.10 mm and 0.25 mm from terminal tip.

The terminal #1 identifier and terminal numbering convention

3 shall conform to JESD 95-1 SPP-012. Details of terminal #1

identifier are optional, but must be located within the zone

indicated. The identifier may be either a mold or marked

feature.

4 Pins 1 and 9 are fused.

5 Package Warpage: 0.05 max.

Optimum Technology Matching® Applied

Si BJT

üGaAs HBT

GaAs MESFET

Si Bi-CMOS

SiGe HBT

Si CMOS

1 16 15 14 13

GND 2

Σ

GND 3

12 GND

11 GND

LO 4

5

-45°

+45°

67

10 VCC

89

Package Style: LCC, 16-Pin

Features

• Typical Carrier Suppression>35dBc,

Sideband Suppression>35dBc over

temperature with highly linear operation

• Noise Floor better than -152dBm/Hz

from 800MHz to 2200MHz

• Single 5V Power Supply

Ordering Information

RF2484

Direct Quadrature Modulator

RF2484 PCBA Fully Assembled Evaluation Board

Functional Block Diagram

RF Micro Devices, Inc.

7625 Thorndike Road

Greensboro, NC 27409, USA

Tel (336) 664 1233

Fax (336) 664 0454

http://www.rfmd.com

Rev A2 010829

5-29

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