Datasheet > RF2498PCBA

RF2498PCBA

更新时间： 2024-10-13 21:54:35

品牌	Logo	应用领域
威讯 - RFMD		放大器全球定位系统
页数	文件大小	规格书
20页	723K
描述
TRI-BAND/QUAD-MODE CDMA/GPS LOW NOISE AMPLIFIER/MIXER

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中文翻译

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数据手册

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RF2498PCBA 数据手册

RF2498

TRI-BAND/QUAD-MODE CDMA/GPS

LOW NOISE AMPLIFIER/MIXER

Typical Applications

• CDMA/Cellular/PCS/GPS Handsets

• JCDMA/GPS Handsets

• Commercial and Consumer Systems

• Portable Battery-Powered Equipment

• CDMA Modem/Data Cards

Product Description

0.10

PLCS

0.05 C

-A-

0.90

0.85

5.00 SQ.

0.70

0.65

The RF2498 is a high performance CDMA tri-band/quad-

mode integrated LNA/mixer with GPS capability. The

device is designed to meet all IS-98 sensitivity, intermod-

ulation and single-tone requirements. The RF2498 inte-

grates the tri-band LNA/downconverters with 27.5dB of

gain control for the cellular band and 29dB for the PCS

band. The RF2498 is designed for three state gain control

solutions for IS-98 IMD testing. The device offers a dedi-

cated GPS LNA/mixer with 37dB of gain. Additionally, a

divide-by-2 prescaler to allow the use of either a single- or

dual-band VCO is integrated. There is also a TX LO

buffer. The design is flexible, in that the bias currents may

be set using off-chip current reference resistors for the

mixer and LNA blocks. The device is packaged in a plas-

tic, 5mmx5mm, leadless chip carrier.

2.50 TYP

0.10

0.05

0.00

PLCS

Dimensions in mm.

12°

MAX

0.10

PLCS

-B-

SEATING

PLANE

2.37 TYP

-C-

4.75 SQ.

0.10

C A

PLCS

0.10M C

A B

0.30

0.18

0.60

0.24

TYP

NOTES:

1. Shaded lead is Pin 1.

PIN 1 ID

0.20 R

Dimension applies to plated terminal:

to be measured between 0.20 mm and 0.25 mm

from terminal end.

3.25

2.95

SQ.

0.50

0.30

0.50

Optimum Technology Matching® Applied

Package Style: QFN, 32-Pin, 5x5

Si BJT

GaAs HBT

SiGe HBT

GaN HEMT

GaAs MESFET

Si Bi-CMOS

InGaP/HBT

Si CMOS

Features

SiGe Bi-CMOS

• GPS Receive Front-End Gain=37dB

• Meets IMD Tests with Three Gain

States/Two Logic Control Lines

GPS+

GPS-

24 GPS LNA IN

• Adjustable Mixer and LNA Bias Current

• Selectable Divide-by-2 Prescaler

• Integrated TX LO Buffer Amplifier

23 PCS LNA IN

CDMA+

CDMA-

FM+

22 IP SET

21 PCS LNA OUT

20 CELL LNA IN

19 CELL LNA EMITTER

18 CELL LNA OUT

FM-

Ordering Information

VCC2

LO IN

RF2498

Tri-Band/Quad-Mode CDMA/GPS Low Noise Ampli-

fier/Mixer

17 LNA GAIN

RF2498 PCBA

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

Functional Block Diagram

Rev A3 030711

8-301

12 3 4 5 6 7...20

中文翻译

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与RF2498PCBA相关器件

型号	品牌	获取价格	描述	数据表
RF2498PCBA-41X	RFMD	获取价格	TRI-BAND/QUAD-MODE CDMA/GPS LOW NOISE AMPLIFIER/MIXER
RF2-49B-T-00-50-G-HDW	ADAM-TECH	获取价格	PCB Mount
RF250	ETC	获取价格	Quadrature Demodulator
RF2501	ETC	获取价格	Voltage-Controlled Oscillator
RF2502	ETC	获取价格	Voltage-Controlled Oscillator
RF250-32	ETC	获取价格	QUADRATURE DEMODULATOR\|BIPOLAR\|QFP\|48PIN\|PLASTIC
RF2504	RFMD	获取价格	VCO/HIGH-ISOLATION BUFFER AMPLIFIER
RF2506	RFMD	获取价格	VHF/UHF VCO/HIGH-ISOLATION BUFFER AMPLIFIER
RF25-06-T-00-50-G	ADAM-TECH	获取价格	RF 1.0/2.0 DIN Connector, 1 Contact(s), Female, Board Mount, Solder Terminal, Locking, Jac
RF250D0050	ADAM-TECH	获取价格	RF CONNECTORS

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