LMX2541
- Multiple Frequency Options Available
(See Device Comparison Table) - Frequencies from 31.6 MHz to 4000 MHz
- Very Low RMS Noise and Spurs
- –225 dBc/Hz Normalized PLL Phase Noise
- Integrated RMS Noise (100 Hz – 20 MHz)
- 2 mRad (100 Hz – 20 MHz) at 2.1 GHz
- 3.5 mRad (100 Hz - 20 MHz) at 3.5 GHz
- Ultra Low-Noise Integrated VCO
- External VCO Option (Internal VCO Bypassed)
- VCO Frequency Divider 1 to 63 (all values)
- Programmable Output Power
- Up to 104-MHz Phase Detector Frequency
- Integrated Low-Noise LDOs
- Programmable Charge Pump Output
- Partially Integrated Loop Filter
- Digital Frequency Shift Keying (FSK) Modulation Pin
- Integrated Reference Crystal Oscillator Circuit
- Hardware and Software Power Down
- FastLock Mode and VCO-Based Cycle Slip Reduction
- Analog and Digital Lock Detect
- 1.6-V Logic Compatibility
The LMX2541 is an ultra low-noise frequency synthesizer which integrates a high performance delta-sigma fractional N PLL, a VCO with fully integrated tank circuit, and an optional frequency divider. The PLL offers an unprecedented normalized noise floor of -225 dBc/Hz and can be operated with up to 104 MHz of phase-detector rate (comparison frequency) in both integer and fractional modes. The PLL can also be configured to work with an external VCO.
The LMX2541 integrates several low-noise, high precision LDOs and output driver matching network to provide higher supply noise immunity and more consistent performance, while reducing the number of external components. When combined with a high quality reference oscillator, the LMX2541 generates a very stable, ultra low-noise signal.
The LMX2541 is offered in a family of 6 devices with varying VCO frequency range from 1990 MHz up to 4 GHz. Using a flexible divider, the LMX2541 can generate frequencies as low as 31.6 MHz.
The LMX2541 is a monolithic integrated circuit, fabricated in a proprietary BiCMOS process. Device programming is facilitated using a three-wire MICROWIRE interface that can operate down to 1.6 volts. Supply voltage ranges from 3.15 V to 3.45 V. The LMX2541 is available in a 36-pin 6-mm × 6-mm × 0.8-mm WQFN Package.
技术文档
类型 | 项目标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LMX2541 Ultra-Low Noise PLLatinum Frequency Synthesizer With Integrated VCO 数据表 (Rev. J) | PDF | HTML | 31 Dec 2014 | ||
EVM 用户指南 | LMX2541xxxx Evaluation Board User's Guide (Rev. B) | 06 Oct 2014 | ||||
设计指南 | 适用于 Xilinx FPGA 的模拟器件 解决方案指南 | 24 Apr 2012 |
设计和开发
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LMX25412380EVAL — LMX25412380 评估板
LMX2541 评估板可简化对 LMX2541 器件的评估。LMX2541 器件的每个版本都有不同的评估板,但各版本都使用相同的指令和软件。
LMX25412690EVAL — LMX25412690 评估板
LMX2541 评估板可简化对 LMX2541 器件的评估。LMX2541 器件的每个版本都有不同的评估板,但各版本都使用相同的指令和软件。
LMX25413030EVAL — LMX25413030 评估板
LMX2541 评估板可简化对 LMX2541 器件的评估。LMX2541 器件的每个版本都有不同的评估板,但各版本都使用相同的指令和软件。
LMX25413320EVAL — LMX25413320 评估板
LMX2541 评估板可简化对 LMX2541 器件的评估。LMX2541 器件的每个版本都有不同的评估板,但各版本都使用相同的指令和软件。
LMX25413740EVAL — LMX25413740 评估板
LMX2541 评估板可简化对 LMX2541 器件的评估。LMX2541 器件的每个版本都有不同的评估板,但各版本都使用相同的指令和软件。
CLOCKDESIGNTOOL — 时钟设计工具 - 环路滤波器和器件配置 + 仿真
PLLATINUMSIM-SW — PLLatinum™ 仿真工具
TICSPRO-SW — 德州仪器 (TI) 时钟和合成器 (TICS) 专业软件
CODELOADER — CodeLoader 器件寄存器编程
Which software do I use?
Product | (...) |
封装 | 引脚数 | 下载 |
---|---|---|
(NJK) | 36 | 了解详情 |
订购和质量
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- MTBF/时基故障估算
- 材料成分
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- 持续可靠性监测
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