LMX2531
- 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
- Fractional-N Delta-Sigma Modulator Order
- 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.
技术文档
| 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 | 2014-12-31 | ||
| 应用手册 | AN-1879 Fractional N Frequency Synthesis (Rev. B) | 2021-11-18 | ||||
| 应用手册 | AN-1558 Clocking High-Speed A/D Converters (Rev. B) | 2013-5-1 | ||||
| 应用手册 | AN-1821 CPRI Repeater System (Rev. A) | 2013-4-26 | ||||
| 应用手册 | LMX2531 整数杂散优化的案例分析 | 2012-10-25 | ||||
| 应用手册 | Selecting Amplifiers, ADCs, and Clocks for High-Performance Signal Paths | 2007-9-13 | ||||
| 应用手册 | Generating Precision Clocks for Time- Interleaved ADCs | 2007-8-2 | ||||
| 应用手册 | Application Note 1558 Clocking High-Speed A/D Converters (cn) | 2007-3-17 |
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）。
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.
Which software do I use?
Product | (...) |
CLOCKDESIGNTOOL — Clock Design Tool Software
时钟设计工具软件可帮助选择器件、设计环路滤波器，并进行定时器件解决方案仿真。当您输入所需的输出频率和参考频率（可选）后，该工具就会提供能够满足指定要求的 TI 器件、分频器值，并推荐能够尽可能减少抖动的环路滤波器。
CLOCKDESIGNTOOL 教程视频
我要使用哪一个软件？
产品 | 环路滤波器和器件配置 + 仿真 | 模拟工具 | 器件寄存器编程 |
LMX24xx PLL 系列 | EasyPLL | ||
LMX25xx PLL+VCO 系列 | 时钟设计工具 | ||
LMK 抖动清除器和分配器 |
TICSPRO-SW — TICS Pro GUI and Live Programming Tool for Clocking Devices
德州仪器 (TI) 时钟和合成器 (TICS) 专业软件用于对具有以下前缀的产品编号的评估模块 (EVM) 进行编程：CDC、LMK 和 LMX。这些产品包括锁相环和电压控制振荡器 (PLL+VCO)、合成器和时钟器件。
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。
PLLATINUMSIM-SW — PLL 环路滤波器、相位噪声、锁定时间和杂散模拟工具
PLLATINUMSIM-SW 是一款仿真工具，允许用户创建我们 PLLatinum™ 集成电路的详细设计和仿真，其中包括 LMX 系列锁相环 (PLL) 和合成器。
TIDA-00479 — GSPS ADC 的理想时钟源参考设计
ADC12D1600RFRB 参考设计提供了一个可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。该参考设计采用 1.6GSPS ADC12D1600RF 器件、板载 FPGA Xilinx Virtex 4 和高性能时钟合成器 LMX2531，以满足 9 位 ENOB 高速数字转换器的系统要求。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WQFN (NJH) | 36 | Ultra Librarian |
| WQFN (NJG) | 36 | Ultra Librarian |
订购和质量
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