Datasheet > 信号电路 > 锁相环或频率合成电路> LMX2370SLDX

LMX2370SLDX

更新时间： 2024-02-02 16:06:05

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
16页	220K
描述
IC PLL FREQUENCY SYNTHESIZER, 2500 MHz, QCC24, 3.50 X 4.50 MM, 0.8 MM HEIGHT, TCSP-24, PLL or Frequency Synthesis Circuit

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LMX2370SLDX 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	TSSOP,	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	风险等级：	5.7
模拟集成电路 - 其他类型：	PLL FREQUENCY SYNTHESIZER	JESD-30 代码：	R-PDSO-G20
JESD-609代码：	e3	长度：	6.5 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	20	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：	TSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.1 mm
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	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	4.4 mm
Base Number Matches：	1

LMX2370SLDX 数据手册

PRELIMINARY

March 1999

LMX2370/LMX2371/LMX2372

™

PLLatinum Dual Frequency Synthesizer for RF

Personal Communications

LMX2370 2.5 GHz/1.2 GHz

LMX2371 2.0 GHz/1.2 GHz

LMX2372 1.2 GHz/1.2 GHz

The LMX237X are available in a 24-pad chip scale (CSP) or

a 20-pin TSSOP surface mount plastic package.

Features

n 2.7V–5.5V operation

n Ultra low current consumption

n Low phase detector noise floor

General Description

The LMX237X family of monolithic, integrated dual fre-

quency synthesizers, including prescalers, is designed to be

used as a first and second local oscillator for dual mode or

dual conversion transceivers. It is fabricated using National’s

0.5u ABiCV silicon BiCMOS process. The LMX237X con-

tains two dual modulus prescalers. A 32/33 or a 16/17

prescaler can be selected for the 2.5 GHz and 2.0 GHz RF

synthesizers with the 16/17 prescaler rated for input frequen-

cies below 1.2 GHz. A 16/17 or an 8/9 prescaler can be se-

lected for the 1.2 GHz RF synthesizers with the 8/9 prescaler

rated for input frequencies below 550 MHz. Using a digital

phase locked loop technique, the LMX237X can generate

very stable, low noise control signals for UHF and VHF volt-

age controlled oscillators (VCO’s). Serial data is transferred

into the LMX237X via a 1.8V three wire interface (Data, En-

able, Clock) compatible with low voltage baseband proces-

sors. Supply voltage can range from 2.7V to 5.5V. The

LMX237X family features very low current consumption typi-

™

n Low voltage MICROWIRE interface (1.8V up to V_CC

)

n Low prescaler values

32/33 f_IN≤ 2.5 GHz

16/17 f_IN≤ 1.2 GHz

8/9 f_IN≤ 550 MHz

n Selectable charge pump current levels

™

n Selectable FastLock mode

n Enhanced ESD protection

n Small 24 pad chip scale package (3.5 x 4.5 x 1.0 mm)

Applications

n Portable wireless communications (PCS/PCN, cordless)

n Dual mode cellular telephone systems

n Spread spectrum communication systems (CDMA)

n Cable TV tuners (CATV)

3V,

cally: LMX2370 - 6.0 mA

3V, LMX2371 - 5.0 mA

LMX2372 - 4.0 mA 3V.

Functional Block Diagram

DS101026-1

™

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

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

DS101026

www.national.com

12 3 4 5 6 7...16

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与LMX2370SLDX相关器件

型号	品牌	描述	获取价格	数据表
LMX2370TM	NSC	PLLatinum⑩ Dual Frequency Synthesizer for RF	获取价格
LMX2370TM	TI	PLL FREQUENCY SYNTHESIZER, 2500MHz, PDSO20, PLASTIC, TSSOP-20	获取价格
LMX2370TM/NOPB	TI	PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO20	获取价格
LMX2370TMX	NSC	PLLatinum⑩ Dual Frequency Synthesizer for RF	获取价格
LMX2370TMX	TI	PLL FREQUENCY SYNTHESIZER, 2500MHz, PDSO20, PLASTIC, TSSOP-20	获取价格
LMX2370TMX/NOPB	TI	PLL FREQUENCY SYNTHESIZER, 2500MHz, PDSO20, PLASTIC, TSSOP-20	获取价格

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