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射频和微波
射频 PLL 和合成器

LMX2531

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具有集成 VCO 的高性能频率合成器系统

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LMX2531

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产品详情

Frequency (max) (MHz) 3132 Frequency (min) (MHz) 553 Normalized PLL phase noise (dBc/Hz) -212 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -104 Features Integrated VCO Current consumption (mA) 34 Integrated VCO Yes Operating temperature range (°C) -40 to 85 Rating Catalog Lock time (µs) (typ) (s) 300
Frequency (max) (MHz) 3132 Frequency (min) (MHz) 553 Normalized PLL phase noise (dBc/Hz) -212 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -104 Features Integrated VCO Current consumption (mA) 34 Integrated VCO Yes Operating temperature range (°C) -40 to 85 Rating Catalog Lock time (µs) (typ) (s) 300
WQFN (NJG) 36 36 mm² 6 x 6 WQFN (NJH) 36 36 mm² 6 x 6
  • Multiple Frequency Options Available
    • See Device Information Table
    • Frequencies From: 553 MHz to 3132 MHz
  • PLL Features
    • Fractional-N Delta-Sigma Modulator Order
      Programmable up to Fourth Order
    • FastLock/Cycle Slip Reduction with Timeout
      Counter
    • Partially Integrated, Adjustable Loop Filter
    • Very Low Phase Noise and Spurs
  • VCO Features
    • Integrated Tank Inductor
    • Low Phase Noise
  • Other Features
    • 2.8-V to 3.2-V Operation
    • Low Operating Current
    • Low Power-Down Current
    • 1.8-V MICROWIRE Support
    • 36-Pin 6-mm × 6-mm × 0.8-mm WQFN Package
  • Multiple Frequency Options Available
    • See Device Information Table
    • Frequencies From: 553 MHz to 3132 MHz
  • PLL Features
    • Fractional-N Delta-Sigma Modulator Order
      Programmable up to Fourth Order
    • FastLock/Cycle Slip Reduction with Timeout
      Counter
    • Partially Integrated, Adjustable Loop Filter
    • Very Low Phase Noise and Spurs
  • VCO Features
    • Integrated Tank Inductor
    • Low Phase Noise
  • Other Features
    • 2.8-V to 3.2-V Operation
    • Low Operating Current
    • Low Power-Down Current
    • 1.8-V MICROWIRE Support
    • 36-Pin 6-mm × 6-mm × 0.8-mm WQFN Package

The LMX2531 is a low-power, high-performance frequency synthesizer system which includes a fully integrated delta-sigma PLL and VCO with fully integrated tank circuit. The third and fourth poles are also integrated and adjustable. Ultra-low noise and high-precision LDOs are integrated for the PLL and VCO, which yield higher supply-noise immunity and more consistent performance. When combined with a high-quality reference oscillator, the LMX2531 device generates very stable, low-noise local-oscillator signals for up and down conversion in wireless communication devices. The LMX2531 device is a monolithic integrated circuit, fabricated in an advanced BiCMOS process. Several different versions of this product accommodate different frequency bands.

The LMX2531 is a low-power, high-performance frequency synthesizer system which includes a fully integrated delta-sigma PLL and VCO with fully integrated tank circuit. The third and fourth poles are also integrated and adjustable. Ultra-low noise and high-precision LDOs are integrated for the PLL and VCO, which yield higher supply-noise immunity and more consistent performance. When combined with a high-quality reference oscillator, the LMX2531 device generates very stable, low-noise local-oscillator signals for up and down conversion in wireless communication devices. The LMX2531 device is a monolithic integrated circuit, fabricated in an advanced BiCMOS process. Several different versions of this product accommodate different frequency bands.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 LMX2531 High-Performance Frequency Synthesizer System With Integrated VCO 数据表 (Rev. S) PDF | HTML 2014年 12月 31日
应用手册 AN-1879 Fractional N Frequency Synthesis (Rev. B) 2021年 11月 18日
应用手册 AN-1558 Clocking High-Speed A/D Converters (Rev. B) 2013年 5月 1日
应用手册 AN-1821 CPRI Repeater System (Rev. A) 2013年 4月 26日
应用手册 LMX2531 整数杂散优化的案例分析 2012年 10月 25日
设计指南 适用于 Xilinx FPGA 的模拟器件 解决方案指南 2012年 4月 24日
应用手册 Selecting Amplifiers, ADCs, and Clocks for High-Performance Signal Paths 2007年 9月 13日
应用手册 Generating Precision Clocks for Time- Interleaved ADCs 2007年 8月 2日
应用手册 Application Note 1558 Clocking High-Speed A/D Converters (cn) 2007年 3月 17日

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

软件编程工具

CODELOADER — CodeLoader Device Register Programming v4.19.0

The CodeLoader 4 software is used to program the LMX PLLs and LMK timing devices through either the USB or line print terminal (LPT) port of a computer. This software also provides information on how to program the device by showing the bits that are actually sent.

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CLOCKDESIGNTOOL — Clock Design Tool Software

The Clock Design Tool software helps with part selection, loop filter design and simulation of timing device solutions. When you enter desired output frequencies and a reference frequency (optional), the tool provides TI devices to meet the specified requirements, divider values and a recommended (...)

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TICSPRO-SW — TICS Pro GUI and Live Programming Tool for Clocking Devices

Texas Instruments clocks and synthesizers (TICS) pro software is used to program the evaluation modules (EVMs) for product numbers with these prefixes: CDC, LMK and LMX. These products include phase-locked loops and voltage-controlled oscillators (PLL+VCO), synthesizers and clocking devices.

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设计工具

CLOCK-TREE-ARCHITECT — 时钟树架构编程软件

时钟树架构是一款时钟树综合工具，可根据您的系统要求生成时钟树解决方案，从而帮助您简化设计流程。该工具从庞大的时钟产品数据库中提取数据，然后生成系统级多芯片时钟解决方案。
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设计工具

PLLATINUMSIM-SW — PLL loop filter, phase noise, lock time, and spur simulation tool

PLLATINUMSIM-SW is a simulation tool that allows users to create detailed designs and simulations of our PLLatinum™ integrated circuits, which include the LMX series of phase-locked loops (PLLs) and synthesizers.

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参考设计

TIDA-00479 — GSPS ADC 的最理想时钟源参考设计

ADC12D1600RFRB 参考设计提供了展示高速数字转换器应用（其中整合了时钟、电源管理和信号处理）的平台。此参考设计利用 1.6 GSPS ADC12D1600RF 器件、板载 FPGA Xilinx Virtex 4 和高性能时钟合成器 LMX2531 来满足 9 位 ENOB 高速数字转换器的系统要求。
设计指南: PDF
原理图: PDF
封装 引脚 CAD 符号、封装和 3D 模型
WQFN (NJG) 36 Ultra Librarian
WQFN (NJH) 36 Ultra Librarian
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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