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LMX2470SLEX/NOPB

更新时间： 2023-09-03 20:29:28
品牌 Logo 应用领域
德州仪器 - TI 信息通信管理
页数 文件大小 规格书
40页 1670K
描述
具有 800MHz 整数 N PLL 的 2.6GHz Δ-Σ 分数 N PLL | NPF | 24 | -40 to 85

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LMX2470SLEX/NOPB 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：QFN
包装说明：VQCCN, LCC24,.17X.14,20针数：24
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.28Is Samacsys：N
模拟集成电路 - 其他类型：PLL FREQUENCY SYNTHESIZERJESD-30 代码：S-PQCC-N24
长度：4.5 mm湿度敏感等级：1
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
最大输出频率：2600 GHz封装主体材料：PLASTIC/EPOXY
封装代码：VQCCN封装等效代码：LCC24,.17X.14,20
封装形状：SQUARE封装形式：CHIP CARRIER, VERY THIN PROFILE
峰值回流温度（摄氏度）：260电源：2.5 V
认证状态：Not Qualified座面最大高度：0.6 mm
子类别：PLL or Frequency Synthesis Circuits最大供电电流 (Isup)：6 mA
最大供电电压 (Vsup)：2.75 V最小供电电压 (Vsup)：2.25 V
标称供电电压 (Vsup)：2.5 V表面贴装：YES
技术：BICMOS温度等级：INDUSTRIAL
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 mmBase Number Matches：1

LMX2470SLEX/NOPB 数据手册

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LMX2470  
www.ti.com  
SNAS195B –MARCH 2003–REVISED MARCH 2013  
LMX2470 2.6 GHz Delta-Sigma Fractional-N PLL with 800 MHz Integer-N PLL  
Check for Samples: LMX2470  
1
FEATURES  
DESCRIPTION  
The LMX2470 is a low power, high performance  
delta-sigma fractional-N PLL with an auxiliary integer-  
N PLL. The device is fabricated using TI’s advanced  
BiCMOS process.  
2
•
Low In-Band Phase Noise and Low Fractional  
Spurs  
•
•
12 Bit or 22 Bit Selectable Fractional Modulus  
Up to 4th Order Programmable Delta-Sigma  
Modulator  
With delta-sigma architecture, fractional spur  
compensation is achieved with noise shaping  
capability of the delta-sigma modulator and the  
inherent low pass filtering of the PLL loop filter.  
Fractional spurs at lower frequencies are pushed to  
higher frequencies outside the loop bandwidth. Unlike  
analog compensation, the digital feedback techniques  
used in the LMX2470 are highly resistant to changes  
in temperature and variations in wafer processing.  
With delta-sigma architecture, the ability to push  
close in spur and phase noise energy to higher  
frequencies is a direct function of the modulator  
order. The higher the order, the more this energy can  
be spread to higher frequencies. The LMX2470 has a  
programmable modulator up to order four, which  
allows the designer to select the optimum modulator  
order to fit the phase noise, spur, and lock time  
requirements of the system.  
•
Enhanced Anti-Cycle Slip Fastlock Circuitry  
–
–
–
Fastlock  
Cycle Slip Reduction  
Integrated Timeout Counters  
•
•
Digital Lock Detect Output  
Prescalers Allow Wide Range of N Values  
–
–
RF PLL: 16/17/20/21  
IF PLL: 8/9 or 16/17  
•
•
•
•
•
Crystal Reference Frequency up to 110 MHz  
On-chip Crystal Reference Frequency Doubler.  
Phase Comparison Frequency up to 30 MHz  
Hardware and Software Power-down Control  
Ultra Low Consumption: ICC = 4.1 mA (Typical)  
Programming is fast and simple. Serial data is  
transferred into the LMX2470 via  
a three line  
APPLICATIONS  
MICROWIRE interface (Data, Clock, Load Enable).  
Nominal supply voltage is 2.5 V. The LMX2470  
features a typical current consumption of 4.1 mA at  
2.5 V. The LMX2470 is available in a 24 lead 3.5 X  
4.5 X 0.6 mm package.  
•
•
Cellular Phones and Base Stations  
–
CDMA, WCDMA, GSM/GPRS, TDMA, EDGE,  
PDC  
Applications Requiring Fine Frequency  
Resolution  
•
•
Satellite and Cable TV Tuners  
WLAN Standards  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2003–2013, Texas Instruments Incorporated  
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LMX2470SLEX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LMX2470SLEX TI

完全替代

 具有 800MHz 整数 N PLL 的 2.6GHz Δ-Σ 分数 N PLL | NP

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