Datasheet > LMX2320

LMX2320

更新时间： 2024-09-26 22:46:59

品牌	Logo	应用领域
美国国家半导体 - NSC		射频个人通信
页数	文件大小	规格书
22页	409K
描述
Frequency Synthesizer for RF Personal Communications

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数据手册

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LMX2320 数据手册

September 1996

LMX2315/LMX2320/LMX2325 PLLatinum^TM

Frequency Synthesizer

for RF Personal Communications

LMX2325 2.5 GHz

LMX2320 2.0 GHz

LMX2315 1.2 GHz

General Description

Features

RF operation up to 2.5 GHz

The LMX2315/2320/2325’s are high performance frequen-

cy synthesizers with integrated prescalers designed for RF

operation up to 2.5 GHz. They are fabricated using Nation-

al’s ABiC IV BiCMOS process.

2.7V to 5.5V operation

Low current consumption

Dual modulus prescaler:

LMX2325

LMX2320/LMX2315

A 64/65 or a 128/129 divide ratio can be selected for the

LMX2315 and LMX2320 RF synthesizer at input frequencies

of up to 1.2 GHz and 2.0 GHz, while 32/33 and 64/65 divide

ratios are available in the 2.5 GHz LMX2325. Using a propri-

etary digital phase locked loop technique, the LMX2315/

2320/2325’s linear phase detector characteristics can gen-

erate very stable, low noise signals for controlling a local

oscillator.

32/33 or 64/65

64/65 or 128/129

Internal balanced, low leakage charge pump

Power down feature for sleep mode:

30 mA (typ) at V

Small-outline, plastic, surface mount TSSOP, 0.173

wide

Serial data is transferred into the LMX2320 and the

LMX2325 via a three line MICROWIRE^TMinterface (Data,

Enable, Clock). Supply voltage can range from 2.7V to 5.5V.

The LMX2315, LMX2320 and the LMX2325 feature very low

current consumption, typically 6 mA, 10 mA and 11 mA re-

spectively.

Applications

Cellular telephone systems

(GSM, IS-54, IS-95, (RCR-27)

Portable wireless communications (DECT, PHS)

CATV

Other wireless communication systems

The LMX2315, LMX2320 and the LMX2325 are available in

a TSSOP 20-pin surface mount plastic package.

Block Diagram

TL/W/12339–1

TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.

MICROWIRE^TMand PLLatinum^TMare trademarks of National Semiconductor Corporation.

1996 National Semiconductor Corporation

TL/W/12339

RRD-B30M106/Printed in U. S. A.

http://www.national.com

12 3 4 5 6 7...22

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与LMX2320相关器件

型号	品牌	获取价格	描述	数据表
LMX2320TM	NSC	获取价格	Frequency Synthesizer for RF Personal Communications
LMX2320TMX	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2000MHz, PDSO20, 0.173 INCH, PLASTIC, TSSOP-20
LMX2320TMX	NSC	获取价格	Frequency Synthesizer for RF Personal Communications
LMX2322	NSC	获取价格	PLLatinumTM 2.0 GHz Frequency Synthesizer for RF Personal Communications
LMX2323	NSC	获取价格	PLLatinum? 2.0 GHz Frequency Synthesizer for RF Personal Communications
LMX2323TM	NSC	获取价格	IC PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO16, TSSOP-16, PLL or Frequency Synthesis Circu
LMX2324	NSC	获取价格	PLLatinum⑩ 2.0 GHz Frequency Synthesizer for
LMX2324A	NSC	获取价格	PLLatinum? 2.2 GHz Frequency Synthesizer for RF Personal Communications (SL163188)
LMX2324ASLBX	ETC	获取价格	FREQUENCY SYNTHESIZER\|BICMOS\|LLCC\|16PIN\|PLASTIC
LMX2324ATM	ETC	获取价格	FREQUENCY SYNTHESIZER\|BICMOS\|TSSOP\|16PIN\|PLASTIC