主页 射频和微波 射频 PLL 和合成器
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射频和微波
射频 PLL 和合成器

LMX2434

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用于射频个人通信的 5.0GHz/2.5GHz PLLatinum 低功耗双路频率合成器

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LMX2434

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产品详情

Frequency (max) (MHz) 5000 Frequency (min) (MHz) 1000 Normalized PLL phase noise (dBc/Hz) -218 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -100 Features Fastlock, Programmable charge-pump current, Synchronous and asynchronous power down Current consumption (mA) 4.6 Integrated VCO No Operating temperature range (°C) -40 to 85 Rating Catalog Lock time (µs) (typ) (s) Loop BW dependent
Frequency (max) (MHz) 5000 Frequency (min) (MHz) 1000 Normalized PLL phase noise (dBc/Hz) -218 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -100 Features Fastlock, Programmable charge-pump current, Synchronous and asynchronous power down Current consumption (mA) 4.6 Integrated VCO No Operating temperature range (°C) -40 to 85 Rating Catalog Lock time (µs) (typ) (s) Loop BW dependent
ULGA (NPE) 20 12.25 mm² (3.5 mm × 3.5 mm)
  • Low Current Consumption
    • LMX2430 (RF/IF): 2.8 mA/ 1.4 mA
    • LMX2433 (RF/IF): 3.2 mA/ 2 mA
    • LMX2434 (RF/IF): 4.6 mA/ 2.4 mA
  • 2.25-V to 2.75-V Operation
  • Synchronous/Asynchronous Power Down
  • Multiple PLL Options:
    • LMX2430 (RF/IF): 3 GHz /0.8 GHz
    • LMX2433 (RF/IF): 3.6 GHz /1.7 GHz
    • LMX2434 (RF/IF): 5 GHz /2.5 GHz
  • Programmable Charge-Pump Current Levels
    • RF and IF: 1 or 4 mA
  • Fastlock With Integrated Time-Out Counters
  • Digital Filtered Lock-Detect Output
  • Analog Lock Detect (Push-Pull / Open-Drain)
  • 1.8-V MICROWIRE Logic Interface
  • Low Current Consumption
    • LMX2430 (RF/IF): 2.8 mA/ 1.4 mA
    • LMX2433 (RF/IF): 3.2 mA/ 2 mA
    • LMX2434 (RF/IF): 4.6 mA/ 2.4 mA
  • 2.25-V to 2.75-V Operation
  • Synchronous/Asynchronous Power Down
  • Multiple PLL Options:
    • LMX2430 (RF/IF): 3 GHz /0.8 GHz
    • LMX2433 (RF/IF): 3.6 GHz /1.7 GHz
    • LMX2434 (RF/IF): 5 GHz /2.5 GHz
  • Programmable Charge-Pump Current Levels
    • RF and IF: 1 or 4 mA
  • Fastlock With Integrated Time-Out Counters
  • Digital Filtered Lock-Detect Output
  • Analog Lock Detect (Push-Pull / Open-Drain)
  • 1.8-V MICROWIRE Logic Interface

Using a proprietary digital-phase, locked-loop technique, the LMX243x devices generate very stable, low-noise control signals for RF and IF voltage controlled oscillators. Both the RF and IF synthesizers include a two-level programmable charge pump. Both the RF and IF PLLs have dedicated fastlock circuitry with integrated time-out counters which require only a single word write to power up or change frequencies.

The LMX243x devices are high-performance frequency synthesizers with integrated dual-modulus prescalers. A 32/33 or a 16/17 prescale ratio can be selected for the 5-GHz LMX2434 RF synthesizer. An 8/9 or a 16/17 prescale ratio can be selected for both the LMX2430 and LMX2433 RF synthesizers. The IF circuitry contains an 8/9 or a 16/17 prescaler.

Serial data is transferred to the devices through a three-wire interface (DATA, LE, CLK). A low voltage logic interface allows direct connection to 1.8-V devices. Supply voltages from 2.25 V to 2.75 V are supported.

Using a proprietary digital-phase, locked-loop technique, the LMX243x devices generate very stable, low-noise control signals for RF and IF voltage controlled oscillators. Both the RF and IF synthesizers include a two-level programmable charge pump. Both the RF and IF PLLs have dedicated fastlock circuitry with integrated time-out counters which require only a single word write to power up or change frequencies.

The LMX243x devices are high-performance frequency synthesizers with integrated dual-modulus prescalers. A 32/33 or a 16/17 prescale ratio can be selected for the 5-GHz LMX2434 RF synthesizer. An 8/9 or a 16/17 prescale ratio can be selected for both the LMX2430 and LMX2433 RF synthesizers. The IF circuitry contains an 8/9 or a 16/17 prescaler.

Serial data is transferred to the devices through a three-wire interface (DATA, LE, CLK). A low voltage logic interface allows direct connection to 1.8-V devices. Supply voltages from 2.25 V to 2.75 V are supported.
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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 LMX243x PLLatinum Dual High-Frequency Synthesizer for RF Personal Communications 数据表 (Rev. D) PDF | HTML 2016-1-13
应用手册 Optimizing LMX243x Input Sens Using Simple Matching Techniques (Rev. A) 2013-4-26

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.

Which software do I use?

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支持的产品和硬件
支持软件

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

时钟架构

CodeLoader

LMX25xx PLL+VCO 系列

时钟设计工具

LMK 抖动清除器和分配器

支持的产品和硬件
设计工具

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。

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
ULGA (NPE) 20 Ultra Librarian
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