Datasheet > LM2324

LM2324

更新时间： 2024-11-18 22:47:07

品牌	Logo	应用领域
美国国家半导体 - NSC		半导体射频个人通信
页数	文件大小	规格书
12页	161K
描述
PLLatinum⑩ 2.0 GHz Frequency Synthesizer for RF Personal Communications

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LM2324 数据手册

PRELIMINARY

November 1999

LMX2324

™

PLLatinum 2.0 GHz Frequency Synthesizer for RF

Personal Communications

General Description

Features

n RF operation up to 2.0 GHz

n 2.7V to 5.5V operation

The LMX2324 is a high performance frequency synthesizer

with integrated 32/33 dual modulus prescaler designed for

RF operation up to 2.0 GHz. Using a proprietary digital

phase locked loop technique, the LMX2324’s linear phase

detector characteristics can generate very stable, low noise

control signals for UHF and VHF voltage controlled oscilla-

tors.

n Low current consumption: I_CC= 3.5 mA (typ) at V_CC

3.0V

n Dual modulus prescaler: 32/33

n Internal balanced, low leakage charge pump

Serial data is transferred into the LMX2324 via a three-line

Applications

™

MICROWIRE interface (Data, LE, Clock). Supply voltage

n Cellular telephone systems (GSM, NADC, CDMA, PDC)

n Personal wireless communications (DCS-1800, DECT,

CT-1+)

range is from 2.7V to 5.5V. The LMX2324 features very low

current consumption, typically 3.5 mA at 3V. The charge

pump provides 4 mA output current.

n Wireless local area networks (WLANs)

n Other wireless communication systems

The LMX2324 is manufactured using National’s ABiC V

BiCMOS process and is packaged in a 16-pin TSSOP and a

16-pin Chip Scale Package (CSP).

Functional Block Diagram

DS101030-1

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

™

MICROWIRE and PLLatinum are trademarks of National Semiconductor Corporation.

DS101030

www.national.com

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