LMX5080

更新时间： 2024-02-05 11:18:00

品牌	Logo	应用领域
美国国家半导体 - NSC		预分频器射频个人通信
页数	文件大小	规格书
7页	103K
描述
PLLatinum⑩ 2.7 GHz Low Power Dual Modulus Prescaler for RF Personal Communications

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技术参数
数据手册

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LMX5080 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	,	针数：	8
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.82	Is Samacsys：	N
逻辑集成电路类型：	PRESCALER	Base Number Matches：	1

LMX5080 数据手册

PRELIMINARY

April 1999

LMX5080

™

PLLatinum 2.7 GHz Low Power Dual Modulus

Prescaler for RF Personal Communications

General Description

The LMX5080 integrated dual modulus prescaler, is de-

Features

n 2.7V to 5.5V operation

signed to be used in

2.5 GHz wireless transceivers. It is fabricated using Nation-

al’s 0.5µ ABiCV silicon BiCMOS process. The LMX5080 con-

synthesized local oscillator for

n Low current consumption: 7 mA (typ) 5V

n −40˚C to +85˚C low noise CMOS output

n Selectable dual modulus prescaler

128/130

tains three dual modulus prescalers. Either

a 128/130,

256/158 or a 512/514 prescaler can be selected for up to

2.7 Gz RF input frequencies. The prescaler inputs can be

driven either differentially, or single ended with the use of a

coupling capacitor on one of the inputs to ground. The

LMX5080 CMOS output is optimized to generate very stable,

low switching noise output signals. The LMX5080 prescaler

can be used in conjunction with a low frequency Phase Lock

Loop to form a frequency synthesizer suitable for UHF trans-

ceivers. Supply voltage can range from 2.7V to 5.5V. The

LMX5080 features low current consumption; typically 7.0 mA

at 5V V_CC

256/258

512/514

n 8-pin small package outline (SOP)

Applications

n 2.5 GHz wireless communications systems (ISM)

n Direct Broadcast Satellite systems (DBS)

n Cable TV tuners (CATV)

The LMX5080 is available in a 8-pin Small Outline (SOP)

surface mount plastic package.

Functional Block Diagram

DS100940-1

™

PLLatinum is a trademark of National Semiconductor Corporation.

DS100940

www.national.com

12 3 4 5 6 7

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