PDF預(yù)覽

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14

Preliminary

8

Typical Applications

鈥?CDMA/FM Cellular Systems

鈥?Supports Dual-Mode CDMA/AMPS

鈥?Supports Dual-Mode CDMA/TACS

RF2449

CDMA/FM LOW NOISE AMPLIFIER/MIXER

900MHZ DOWNCONVERTER

鈥?General Purpose Downconverter

鈥?Commercial and Consumer Systems

鈥?Portable Battery-Powered Equipment

Product Description

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 30dB 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.

Optimum Technology Matching廬 Applied

Si BJT

GaAs HBT

SiGe HBT

GaAs MESFET

Si CMOS

24 LO IN

23 GND2

22 GND2

21 VCC2

20 IF2+

19 IF2-

18 BYPASS

17 IF1-

16 IF1+

15 GND3A

14 MIX IN

13 GND3B

0.157

0.150

0.0098

0.0040

1

0.344

0.337

0.012

0.008

0.025

0.0688

0.0532

0.2440

0.2284

8擄MAX

0擄MIN

8

0.0098

0.0075

0.050

0.016

Package Style: SSOP-24

!

Si Bi-CMOS

ENABLE 1

IP SET 2

IF SEL 3

LNA GAIN 4

MIX GAIN 5

LNA IN 6

VCC1 7

GND1B 8

GND1A 9

LNA OUT 10

11

12

Features

鈥?Complete Receiver Front-End

鈥?Stepped LNA/Mixer Gain Control

鈥?Adjustable LNA/Mixer Bias Current

鈥?Adjustable LNA/Mixer IIP3

鈥?Digital LNA IIP3 Control

鈥?Meets IS-98 IMD and Single Tone

Ordering Information

RF2449

RF2449 PCBA

CDMA/FM Low Noise Amplifier/Mixer 900MHz

Downconverter

Fully Assembled Evaluation Board

Tel (336) 664 1233

Fax (336) 664 0454

http://www.rfmd.com

Functional Block Diagram

RF Micro Devices, Inc.

7625 Thorndike Road

Greensboro, NC 27409, USA

Rev A4 001016

8-75

FRONT-ENDS

next

RF2449相關(guān)型號(hào)PDF文件下載

• 型號(hào)
  版本
  描述
  廠商
  下載
• RF24
  英文版
  Analog IC
  ETC
  RF24
• RF2401
  英文版
  RF Mixer
  ETC
  RF2401
• RF2402
  英文版
  UHF QUADRATURE MODULATOR
  RFMD
  RF2402
• RF2402
  英文版
  UHF QUADRATURE MODULATOR
  RFMD [RF M...
  RF2402
• RF2403
  英文版
  Microwave/Millimeter Wave Amplifier
  ETC
  RF2403
• RF2406
  英文版
  Downconverter
  ETC
  RF2406
• RF2407
  英文版
  RF Mixer
  ETC
  RF2407
• RF2410
  英文版
  Analog Attenuator
  ETC
  RF2410
• RF2411
  英文版
  LOW NOISE AMPLIFIER/MIXER
  RFMD
  RF2411
• RF2411
  英文版
  LOW NOISE AMPLIFIER/MIXER
  RFMD [RF M...
  RF2411
• RF2412
  英文版
  RF Modulator
  ETC
  RF2412
• RF2413
  英文版
  GAIN CONTROLLED DUAL-CONVERSION QUADRATURE MODULATOR
  RFMD
  RF2413
• RF2413
  英文版
  GAIN CONTROLLED DUAL-CONVERSION QUADRATURE MODULATOR
  RFMD [RF M...
  RF2413
• RF2416
  英文版
  DUAL-BAND 2.7V LOW NOISE AMPLIFIER
  RFMD
  RF2416
• RF2416
  英文版
  DUAL-BAND 2.7V LOW NOISE AMPLIFIER
  RFMD [RF M...
  RF2416
• RF2418
  英文版
  LOW CURRENT LNA/MIXER
  RFMD
  RF2418
• RF2418
  英文版
  LOW CURRENT LNA/MIXER
  RFMD [RF M...
  RF2418
• RF2420
  英文版
  PROGRAMMABLE ATTENUATOR
  RFMD
  RF2420
• RF2420
  英文版
  PROGRAMMABLE ATTENUATOR
  RFMD [RF M...
  RF2420
• RF2421
  英文版
  10dB SWITCHED ATTENUATOR
  RFMD
  RF2421

您可能感興趣的PDF文件資料

• RF2402
• RF2420
• RF2422
• RF2442
• RF2413
• RF2418
• RF2456
• RF2472
• RF2480
• RF2495
• RF2401
• RF24

熱門IC型號(hào)推薦

• RUE003N02TL
• RCLAMP0503N.TCT
• RT9167-18PB
• RLZTE-115.1B
• RB501V-40TE-17
• RP1202-18GB
• R1111N301B-TR
• RHRP30120
• RT9161-33PV
• RT9365PQW
• REF02CS
• RB501V-40