RF2449 datasheet(1/14 Pages) RFMD

部件名	RF2449

功能描述	CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER

PDF	14 Pages

Scroll/Zoom	100%

制造商	RFMD [RF Micro Devices]

网页	http://www.rfmd.com

标志

1 / 14 page

8-75

8

Preliminary

Product Description

Ordering Information

Typical Applications

Features

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

Optimum Technology Matching® Applied

Si BJT

GaAs MESFET

GaAs HBT

Si Bi-CMOS

!

SiGe HBT

Si CMOS

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

ENABLE

IP SET

IF SEL

LNA GAIN

MIX GAIN

LNA IN

VCC1

GND1B

GND1A

LNA OUT

LO IN

GND2

VCC2

IF2+

IF2-

BYPASS

IF1-

IF1+

GND3A

MIX IN

GND3B

RF2449

CDMA/FM LOW NOISE AMPLIFIER/MIXER

900MHZ DOWNCONVERTER

• CDMA/FM Cellular Systems

• Supports Dual-Mode CDMA/AMPS

• Supports Dual-Mode CDMA/TACS

• General Purpose Downconverter

• Commercial and Consumer Systems

• Portable Battery-Powered Equipment

The RF2449 is a receiver front-end designed for the

receive section of dual-mode CDMA/FM cellular applica-

tions. It is designed to amplify and downconvert RF sig-

nals, while providing 30 dB of stepped gain control range.

Features include digital control of LNA gain, mixer gain,

LNA IIP3, and power down mode. Another feature of the

chip is adjustable IIP3 of the LNA and mixer using an off-

chip current setting resistor. The LNA IIP3 can be digitally

controlled between two levels to reduce current draw in

CDMA standby and other conditions where high IIP3 is

not required. Noise Figure, IP3, and other specs are

designed to be compatible with the IS-98 specification for

CDMA cellular communications. The IC is manufactured

on an advanced Silicon Bipolar process and packaged in

an SSOP-24.

• Complete Receiver Front-End

• Stepped LNA/Mixer Gain Control

• Adjustable LNA/Mixer Bias Current

• Adjustable LNA/Mixer IIP3

• Digital LNA IIP3 Control

• Meets IS-98 IMD and Single Tone

RF2449

CDMA/FM Low Noise Amplifier/Mixer 900MHz

Downconverter

RF2449 PCBA

Fully Assembled Evaluation Board

8

Rev A4 001016

8°MAX

0°MIN

1

0.050

0.016

0.0098

0.0075

0.2440

0.2284

0.025

0.012

0.008

0.0688

0.0532

0.157

0.150

0.0098

0.0040

0.344

0.337

Package Style: SSOP-24

类似零件编号 - RF2449

制造商	部件名	数据表	功能描述
RF Micro Devices	RF2442	176Kb / 10P	HIGH-LINEARITY LOW NOISE AMPLIFIER
	RF2442	201Kb / 10P	HIGH-LINEARITY LOW NOISE AMPLIFIER
	RF2442	311Kb / 12P	HIGH-LINEARITY LOW NOISE AMPLIFIER
	RF2442PCBA-H	201Kb / 10P	HIGH-LINEARITY LOW NOISE AMPLIFIER
	RF2442PCBA-H	311Kb / 12P	HIGH-LINEARITY LOW NOISE AMPLIFIER

More results

类似说明 - RF2449

制造商	部件名	数据表	功能描述
RF Micro Devices	RF2461	365Kb / 14P	CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER
Maxim Integrated Produc...	MAX2685	188Kb / 10P	Low-Cost, 900MHz, Low-Noise Amplifier and Downconverter Mixer 19-1493; Rev 0; 7/99
RF Micro Devices	RF2870	400Kb / 14P	CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER
	RF2861	173Kb / 14P	CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER
	RF2461	355Kb / 12P	CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER
	RF2861	124Kb / 14P	CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER
	RF2861	318Kb / 16P	CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER
	RF2461	585Kb / 14P	CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER
Maxim Integrated Produc...	MAX2685	174Kb / 10P	Low-Cost, 900MHz, Low-Noise Amplifier and Downconverter Mixer Rev 1; 12/00
RF Micro Devices	RF2861	773Kb / 15P	CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER