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RF2489

DUAL-BAND/TRI-MODE CDMA LOW NOISE AMPLIFIER/MIXER

RF Micro Devices 

Preliminary

8

Typical Applications

• CDMA/Cellular/PCS Handsets

• JCDMA/GPS Handsets

• CDMA Modem/Data Cards

RF2489

DUAL-BAND/TRI-MODE CDMA

LOW NOISE AMPLIFIER/MIXER

• Commercial and Consumer Systems

• Portable Battery-Powered Equipment

Product Description

The RF2489 is a high performance CDMA dual-band/tri-

mode integrated LNA/mixer. The device is designed to

1.00

0.85

0.80

0.65

0.60

0.24 typ

5.00

sq.

0.23

0.13

4 PLCS

meet all IS-98 sensitivity, intermodulation and single-tone

requirements. The operating voltage is 2.7V and is com-

3

0.30

0.18

3.25

patible with 1.8V logic for control lines. The RF2489 inte-

2.95 sq.

grates the dual-band LNA/downconverters with 30dB of

gain control and TX LO buffers. Additionally, a divide-by-2

0.45

prescaler to allow the use of a single-band VCO is inte-

12°

MAX

0.55

0.30

0.20

4 PLCS

grated. The design is flexible, in that the bias currents

may be set using off-chip current reference resistors for

0.05

0.01

0.50

NOTES:

8

both the LNA and mixer blocks. The device is packaged in

1 Shaded Pin is Lead 1.

a 5mmx5mm leadless plastic package.

2 Pin 1 identifier must exist on top surface of package by identification

mark or feature on the package body. Exact shape and size is optional.

3 Dimension applies to plated terminal: to be measured between 0.02 mm

and 0.25 mm from terminal end.

4 Package Warpage: 0.05 mm max.

5 Die Thickness Allowable: 0.305 mm max.

Optimum Technology Matching® Applied

Si BJT

Si Bi-CMOS

GaAs HBT

üSiGe HBT

GaAs MESFET

Si CMOS

32

31

30

29

28

27

26

25

FM+ 1

24 CELL LNA OUT

FM- 2

23 CELL LNA EMITTER

CDMA+ 3

22 CELL LNA IN

CDMA- 4

/2

/2 SELECT 5

21 GND

20 PCS LNA IN

LO IN 6

19 GND

PCS LO OUT 7

18 VCC2

CELL LO OUT 8

9

17 PCS LNA OUT

10

11

12

13

14

15

16

Functional Block Diagram

Package Style: LCC, 32-Pin, 5x5

Features

• 30dB of Stepped LNA/Mixer Gain Control

• Adjustable Mixer & LNA Bias Current/IIP3

• A Divide-by-2 Prescaler

• Meets IMD Tests with Three Gain States/

Two Logic Control Lines

• Integrated TX LO Buffer Amplifiers

Ordering Information

RF2489

RF2489

RF2489 PCBA

Dual-Band/Tri-Mode CDMA Low Noise Amplifier/Mixer

Dual-Band/Tri-Mode JCDMA/GPS Low Noise

Amplifier/Mixer

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 A10 011017

8-33

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