Datasheet > 信号电路 > 锁相环或频率合成电路> LMX2336LSLB

LMX2336LSLB

更新时间： 2024-09-20 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	544K
描述
PLLatinum⑩ Low Power Dual Frequency Synthesizer for RF Personal Communications

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数据手册

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LMX2336LSLB 数据手册

PRELIMINARY

June 1999

LMX2335L/LMX2336L

™

PLLatinum Low Power Dual Frequency Synthesizer for

RF Personal Communications

LMX2335L

1.1 GHz/1.1 GHz

Features

LMX2336L

2.0 GHz/1.1 GHz

n Ultra low current consumption

n 2.7V to 5.5V operation

General Description

n Selectable synchronous and asynchronous powerdown

mode:

The LMX2335L and LMX2336L are monolithic, integrated

dual frequency synthesizers, including two high frequency

prescalers, and are designed for applications requiring two

RF phase-lock loops. They are fabricated using National’s

0.5µ ABiC V silicon BiCMOS process.

I_CC1 µA (typ)

n Dual modulus prescaler: 64/65 or 128/129

n Selectable charge pump TRI-STATE^®mode

n Selectable charge pump current levels

The LMX2335L/36L contains two dual modulus prescalers. A

64/65 or a 128/129 prescaler can be selected for each RF

synthesizer. A second reference divider chain is included in

the IC for improved system noise. The LMX2335L/36L com-

bined with a high quality reference oscillator, two loop filters,

and two external voltage controlled oscillators generates

very stable low noise RF local oscillator signals.

™

n Selectable Fastlock mode

n Upgrade and compatible to LMX2335/36

n Small-outline, plastic, surface mount TSSOP package

n LMX2336 available in CSP package

Applications

n Cellular telephone systems (AMPS, ETACS, RCR-27)

n Cordless telephone systems

(DECT, ISM , PHS, CT-1+)

n Personal Communication Systems

(DCS-1800, PCN-1900)

n Dual Mode PCS phones

n Cable TV Tuners (CATV)

n Other wireless communication systems

Serial data is transferred into the LMX2335L/36L via a three

wire interface (Data, Enable, Clock). Supply voltage can

range from 2.7V to 5.5V. The LMX2335L/36L feature very

low current consumption; LMX2335L 4.0 mA at 5V,

LMX2336L 5.5 mA at 5V. The LMX2335L is available in SO,

TSSOP and CSP 16-pin surface mount plastic packages.

The LMX2336L is available in a TSSOP 20-pin and CSP

24-pin surface mount plastic package.

Functional Block Diagram

DS012807-1

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

™

Fastlock , MICROWIRE and PLLatinum are trademarks of National Semiconductor Corporation.

DS012807

www.national.com

12 3 4 5 6 7...22

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与LMX2336LSLB相关器件

型号	品牌	获取价格	描述	数据表
LMX2336LSLBX	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2000MHz, PQCC24, PLASTIC, CSP-24
LMX2336LTM	NSC	获取价格	PLLatinum⑩ Low Power Dual Frequency Synthesiz
LMX2336LTM/NOPB	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2000MHz, PDSO20, 0.173 INCH, PLASTIC, TSSOP-20
LMX2336LTMX	ETC	获取价格	FREQUENCY SYNTHESIZER\|BICMOS\|TSSOP\|20PIN\|PLASTIC
LMX2336LTMX/NOPB	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2000MHz, PDSO20, 0.173 INCH, PLASTIC, TSSOP-20
LMX2336TM	NSC	获取价格	PLLatinum⑩ Dual Frequency Synthesizer for RF
LMX2336TMX	NSC	获取价格	IC PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO20, PLASTIC, TSSOP-20, PLL or Frequency Synthe
LMX2336U	NSC	获取价格	PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2336USLB	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2000MHz, PQCC24, PLASTIC, CSP-24
LMX2336USLBX	NSC	获取价格	PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications

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