LMX1601

更新时间： 2024-11-08 22:31:11

品牌	Logo	应用领域
美国国家半导体 - NSC		半导体光电二极管信息通信管理
页数	文件大小	规格书
14页	200K
描述
PLLatinum⑩ Low Cost Dual Frequency Synthesizer

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中文翻译

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数据手册

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LMX1601 数据手册

PRELIMINARY

March 1998

LMX1600/LMX1601/LMX1602

™

PLLatinum Low Cost Dual Frequency Synthesizer

LMX1600

LMX1601

LMX1602

2.0 GHz/500 MHz

1.1 GHz/500 MHz

1.1 GHz/1.1 GHz

General Description

The LMX1600/01/02 is part of a family of monolithic inte-

grated dual frequency synthesizers designed to be used in a

local oscillator subsystem for a radio transceiver. It is fabri-

cated using National’s 0.5u ABiC V silicon BiCMOS process.

Features

n V_CC= 2.7V to 3.6V operation

n Low current consumption:

4 mA 3V (typ) for LMX1601

The LMX1600/01/02 contains two dual modulus prescalers,

four programmable counters, two phase detectors and two

selectable gain charge pumps necessary to provide the con-

trol voltage for two external loop filters and VCO loops. Digi-

tal filtered lock detects for both PLLs are included. Data is

5 mA 3V (typ) for LMX1600 or LMX1602

n PLL Powerdown mode: I_CC= 1 µA typical

n Dual modulus prescaler:

— 2 GHz/500 MHz option:

— 1.1 GHz/500 MHz option: (Main) 16/17 (Aux) 8/9

— 1.1 GHz/1.1 GHz option:

n Digital Filtered Lock Detects

(Main) 32/33 (Aux) 8/9

™

transferred into the LMX1600/01/02 via a MICROWIRE

serial interface (Data, Clock, LE).

(Main) 16/17 (Aux) 16/17

V_CCsupply voltage can range from 2.7V to 3.6V. The

LMX1600/01/02 features very low current consumption -

typically 4.0 mA at 3V for LMX1601, 5.0 mA at 3V for

LMX1600 or LMX1602. Powerdown for the PLL is hardware

controlled.

Applications

n Cordless / Cellular / PCS phones

n Other digital mobile phones

The LMX1600/01/02 is available in a 16 pin TSSOP surface

mount plastic package.

Functional Block Diagram

DS100129-1

TRI-STATE^®is a registered trademark of National Semiconductor Corporation.

™

MICROWIRE and PLLatinum are trademarks of National Semiconductor Corporation.

DS100129

www.national.com

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中文翻译

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LMX1601TM	NSC	获取价格	PLLatinum⑩ Low Cost Dual Frequency Synthesize
LMX1601TMX	TI	获取价格	LMX1600 2.0 GHz/500 MHz, LMX1601 1.1 GHz/500
LMX1602	TI	获取价格	LMX1600 2.0 GHz/500 MHz, LMX1601 1.1 GHz/500
LMX1602	NSC	获取价格	PLLatinum⑩ Low Cost Dual Frequency Synthesize