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LMX2335USLB PDF预览

LMX2335USLB

更新时间： 2024-02-26 09:20:57
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
20页 379K
描述
PLL FREQUENCY SYNTHESIZER, 1200MHz, PQCC16, PLASTIC, CSP-16

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LMX2335USLB 技术参数

生命周期：Obsolete包装说明：QCCN,
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.7其他特性：DUAL MODULUS PRESCALER: 64/65 OR 128/129
模拟集成电路 - 其他类型：PLL FREQUENCY SYNTHESIZERJESD-30 代码：S-PQCC-N16
长度：3.5 mm功能数量：1
端子数量：16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封装形状：SQUARE
封装形式：CHIP CARRIER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温度等级：INDUSTRIAL
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD宽度：3.5 mm
Base Number Matches：1

LMX2335USLB 数据手册

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PRELIMINARY  
May 2001  
LMX2335U/LMX2336U  
™
PLLatinum Ultra Low Power Dual Frequency  
Synthesizer for RF Personal Communications  
LMX2335U  
LMX2336U  
1.2 GHz/1.2 GHz  
2.0 GHz/1.2 GHz  
Features  
n Ultra low current consumption  
n 2.7V to 5.5V operation  
General Description  
n Selectable synchronous and asynchronous powerdown  
mode:  
ICC = 1 µA (typ)  
n Dual modulus prescaler: 64/65 or 128/129  
n Selectable charge pump TRI-STATE® mode  
n Selectable charge pump current levels  
n Selectable Fastlock mode  
n Upgrade and compatible to LMX2335L/36L  
n LMX2335U available in 16 - Lead TSSOP and 16 - Pin  
CSP  
The LMX2335U and LMX2336U are monolithic, integrated  
dual frequency synthesizers, including two high frequency  
prescalers, and are designed for applications requiring two  
RF phase-lock loops.  
The LMX2335U/36U 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 LMX2335U/36U 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 LMX2336U available in 20 - Lead TSSOP and 24 - Pin  
CSP  
Serial data is transferred into the LMX2335U/36U via a three  
wire interface (Data, Enable, Clock). Supply voltage can  
range from 2.7V to 5.5V. The LMX2335U/36U feature very  
low current consumption;  
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  
LMX2335U – 3.0 mA at 3V, LMX2336U – 3.5 mA at 3V.  
The LMX2335U is available in a TSSOP 16-pin and CSP  
16-pin surface mount plastic packages. The LMX2336U is  
available in a TSSOP 20-pin and CSP 24-pin surface mount  
plastic package.  
n Cable TV Tuners (CATV)  
n Other wireless communication systems  
Functional Block Diagram  
DS101367-1  
TRI-STATE® is a registered trademark of National Semiconductor Corporation.  
™
™
™
Fastlock , MICROWIRE and PLLatinum are trademarks of National Semiconductor Corporation.  
© 2001 National Semiconductor Corporation  
DS101367  
www.national.com  
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