Datasheet > LMX2331USLB

LMX2331USLB

更新时间： 2024-01-05 01:15:13

品牌	Logo	应用领域
罗彻斯特 - ROCHESTER		/
页数	文件大小	规格书
18页	285K
描述
PLL Frequency Synthesizer, PQCC24, PLASTIC, CSP-24

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技术参数
数据手册

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LMX2331USLB 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	QCCN, LCC24,.17X.14,20	Reach Compliance Code：	unknown
HTS代码：	8542.39.00.01	风险等级：	5.85
其他特性：	DUAL MODULUS PRESCALER (RF): 64/65 OR 128/129 AND DUAL MODULUS PRESCALER (IF): 8/9 OR 16/17	模拟集成电路 - 其他类型：	PLL FREQUENCY SYNTHESIZER
JESD-30 代码：	R-PQCC-N24	JESD-609代码：	e0
长度：	4.5 mm	功能数量：	1
端子数量：	24	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	QCCN	封装等效代码：	LCC24,.17X.14,20
封装形状：	RECTANGULAR	封装形式：	CHIP CARRIER
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	3 V
认证状态：	Not Qualified	座面最大高度：	1.1 mm
子类别：	PLL or Frequency Synthesis Circuits	最大供电电流 (Isup)：	3.8 mA
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.7 V
标称供电电压 (Vsup)：	3 V	表面贴装：	YES
技术：	BICMOS	温度等级：	INDUSTRIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	3.5 mm

LMX2331USLB 数据手册

PRELIMINARY

May 2001

LMX2330U/LMX2331U/LMX2332U

™

PLLatinum Ultra Low Power Dual Frequency

Synthesizer for RF Personal Communications

LMX2330U 2.5 GHz/600 MHz

Features

n Ultra low current consumption

LMX2331U 2.0 GHz/600 MHz

LMX2332U 1.2 GHz/600 MHz

n 2.7V to 5.5V operation

n Selectable synchronous or asynchronous powerdown

mode:

I_CC= 1 µA typical at 3V

General Description

The LMX233xU family of monolithic, integrated dual fre-

quency synthesizers, including prescalers, is to be used as a

local oscillator for RF and first IF of a dual conversion

transceiver.

n Dual modulus prescaler:

LMX2330U

(RF) 32/33 or 64/65

LMX2331U/32U

(RF) 64/65 or 128/129

LMX2330U/31U/32U (IF) 8/9 or 16/17

n Selectable charge pump TRI-STATE^®mode

n Selectable charge pump current levels

The LMX233xU contains dual modulus prescalers. A 64/65

or a 128/129 prescaler (32/33 or 64/65 in the 2.5 GHz

LMX2330U) can be selected for the RF synthesizer and a

8/9 or a 16/17 prescaler can be selected for the IF synthe-

sizer. LMX233xU, which employs a digital phase locked loop

technique, combined with a high quality reference oscillator,

provides the tuning voltages for voltage controlled oscillators

to generate very stable, low noise signals for RF and IF local

oscillators. Serial data is transferred into the LMX233xU via

a three wire interface (Data, Enable, Clock). Supply voltage

can range from 2.7V to 5.5V. The LMX233xU family features

very low current consumption;

™

n Selectable Fastlock mode

n Upgrade and compatible to LMX233xL family

n Available in 20 - Lead TSSOP and 24 - Pin CSP

Applications

n Portable Wireless Communications

(PCS/PCN, cordless)

n Cordless and cellular telephone systems

n Wireless Local Area Networks (WLANs)

n Cable TV tuners (CATV)

LMX2330U—3.3 mA at 3V, LMX2331U—2.9 mA at 3V,

LMX2332U—2.5 mA at 3V.

n Other wireless communication systems

The LMX233xU are available in TSSOP 20-pin and CSP

24-pin surface mount plastic packages.

Functional Block Diagram

DS101366-1

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

™

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

DS101366

www.national.com

12 3 4 5 6 7...18

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与LMX2331USLB相关器件

型号	品牌	获取价格	描述	数据表
LMX2331USLBX	NSC	获取价格	PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2331USLBX	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2000MHz, PQCC24, PLASTIC, CSP-24
LMX2331USLBX	ROCHESTER	获取价格	PLL Frequency Synthesizer, PQCC24, PLASTIC, CSP-24
LMX2331USLEX	ROCHESTER	获取价格	PLL Frequency Synthesizer, PQCC24, PLASTIC, UTCSP-24
LMX2331UTM	NSC	获取价格	PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2331UTM	ROCHESTER	获取价格	PLL Frequency Synthesizer, PDSO20, 0.173 INCH, PLASTIC, TSSOP-20
LMX2331UTM/NOPB	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2000MHz, PDSO20, 0.173 INCH, PLASTIC, TSSOP-20
LMX2331UTMX	NSC	获取价格	PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2331UTMX/NOPB	TI	获取价格	PLL FREQUENCY SYNTHESIZER, 2000MHz, PDSO20, 0.173 INCH, PLASTIC, TSSOP-20
LMX2332A	NSC	获取价格	PLLatinum⑩ Dual Frequency Synthesizer for RF

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