MAX2643

更新时间： 2024-11-06 22:55:23

品牌	Logo	应用领域
美信 - MAXIM		放大器
页数	文件大小	规格书
16页	239K
描述
900MHz SiGe, High IP3, Low-Noise Amplifiers

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MAX2643 数据手册

19-1682; Rev 0; 4/00

900MHz SiGe, High IP3,

Low-Noise Amplifiers

General Description

Features

The MAX2642/MAX2643 low-cost, high third-order inter-

cept point (IP3), low-noise amplifiers (LNAs) are

designed for applications in cellular, ISM, SMR, and

PMR systems. They feature a programmable bias,

allowing the IP3 and supply current to be optimized for

specific applications. These LNAs provide up to 0dBm

input IP3 while maintaining a low noise figure of 1.3dB.

ꢀ Wide Frequency Range: 800MHz to 1000MHz

ꢀ High Output IP3 and Adjustable

+17dBm at 5.3mA

+7dBm at 2.8mA

ꢀ Low Noise Figure: 1.3dB at 900MHz

ꢀ 13dB Attenuation Step (MAX2642)

ꢀ On-Chip Output Matching

The gain for these devices is typically 17dB. The

MAX2642 also features a 13dB attenuation step, which

extends the LNA’s dynamic range. Both devices feature

a shutdown mode that minimizes power consumption.

On-chip output matching saves board space by reduc-

ing the number of external components.

ꢀ Low-Power Shutdown Mode

ꢀ +2.7V to +5.5V Single-Supply Operation

ꢀ Ultra-Small SC70-6 Package

The MAX2642/MAX2643 are designed on a low-noise,

advanced silicon-germanium (SiGe) process technolo-

gy. They operate from a +2.7V to +5.5V single supply

and are available in the ultra-small 6-pin SC70 package.

Ordering Information

________________________Applications

800MHz/900MHz Cellular Phones

PIN-

PACKAGE

TOP

MARK

PART

TEMP. RANGE

900MHz Cordless Phones

MAX2642EXT-T -40°C to +85°C

MAX2643EXT-T -40°C to +85°C

6 SC70-6

AAC

AAD

868MHz/900MHz ISM-Band Wireless Data

PMR/SMR/LMR

Typical Operating Circuit

Pin Configuration

47pF

MAX2642

MAX2643

TOP VIEW

LOW GAIN

(ENABLE)

BIAS

510Ω

BIAS

GND

RFIN

RFOUT

GND

BIAS

HIGH GAIN

(SHUTDOWN)

MAX2642

MAX2643

33k

(10k)

8.7nH

RFIN

RFOUT

OUTPUT

INPUT

3.3pF

SC70-6

GND

( ) ARE FOR MAX2643.

________________________________________________________________ Maxim Integrated Products

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

12 3 4 5 6 7...16

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与MAX2643相关器件

型号	品牌	获取价格	描述	数据表
MAX2643EVKIT	MAXIM	获取价格	Evaluation Kits
MAX2643EXT-T	MAXIM	获取价格	900MHz SiGe, High IP3, Low-Noise Amplifiers
MAX2644	MAXIM	获取价格	2.4GHz SiGe, High IP3 Low-Noise Amplifier
MAX2644	ADI	获取价格	2.4GHz SiGe、高IP3低噪声放大器
MAX2644_03	MAXIM	获取价格	2.4GHz SiGe, High IP3 Low-Noise Amplifier
MAX2644_1	MAXIM	获取价格	Evaluation Kit
MAX2644EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX2644
MAX2644EXT+T	MAXIM	获取价格	Narrow Band Medium Power Amplifier, 2400MHz Min, 2500MHz Max, 1 Func, BIPolar, SC-70, 6 PI
MAX2644EXT-T	MAXIM	获取价格	2.4GHz SiGe, High IP3 Low-Noise Amplifier
MAX2645	MAXIM	获取价格	3.4GHz to 3.8GHz SiGe Low-Noise Amplifier/PA Predriver