WMSIC Electronic Components

HGSEMI CD4046BM/TR CD4046BM

ModelCD4046BM/TR
PackageSOP-16
BrandHGSEMI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI CD4046BM / TR
Type
HGSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
CD4046BM/TR
Electronic Component
1
Package
SOP-16
Electronic Component
Clock Generator / Frequency Synthesizer / PLL
Electronic Component
0.332g
Electronic Component
1
Electronic Component
BM0227687405
Operating Temperature
40℃~+85℃
Operating Voltage
3V~15V
Electronic Component
Electronic Component
Output Channel Count
2
Clock / Oscillator
Electronic Component
Output Frequency
1.3MHz
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

CD4046BM/TR 产品概述

一、概述

CD4046BM/TR(HGSEMI 华冠,SOP-16 封装)是一款基于 CMOS 工艺的锁相环(PLL)时钟器件,集成电压控制振荡器(VCO)与两路相位比较器,适用于中低频率时钟合成与相位检测场合。器件工作电压范围宽(3V~15V),工作温度范围为 -40℃~+85℃,最大输出频率可达 1.3MHz,具有低功耗、高输入阻抗与较强的抗干扰能力。

二、主要性能与特点

  • 工作电压:3V ~ 15V,适配多种电源方案。
  • 工作温度:-40℃ ~ +85℃,满足工业级应用温度要求。
  • 最大输出频率:1.3MHz,可用于常见的时钟和调制解调任务。
  • 输出通道数:2(含两路相位比较器输出通道,另带 VCO 输出用于驱动外部电路)。
  • 封装形式:SOP-16,便于表面贴装与批量生产。
  • CMOS 工艺:静态功耗低、输入阻抗高,适合低功耗系统设计。

三、功能结构简介

CD4046BM/TR 内部集成:

  • 电压控制振荡器(VCO):通过外接电阻、电容调整振荡频率,实现电压对频率的可控变化,用于频率合成与锁相。
  • 两路相位比较器(PC1、PC2):分别提供不同的相位检测特性,PC1 通常为模拟乘法型或边沿检测,PC2 为触发/数字型比较器,方便针对不同控制环路选择。
  • 输出驱动:VCO 输出可直接驱动后级逻辑或经过缓冲后驱动更大负载。

四、典型应用场景

  • 时钟恢复与频率合成:用于数字通信、数据采集等系统的本地时钟产生与锁相稳定。
  • 调制与解调(如 FSK/PSK):作为解调环路的核心相位检测与同步单元。
  • 频率跟踪与倍频器:结合分频/滤波电路实现频率跟踪或倍频应用。
  • 电机/伺服控制、频率测量与传感器接口等场景。

五、使用建议与注意事项

  • 外围滤波与旁路电容:建议在电源引脚处放置 0.1µF 陶瓷旁路电容,靠近封装以抑制电源噪声,保证锁相环稳定。
  • VCO 外接元件:VCO 频率由外接电阻、电容决定,应使用温度系数低的元件以提升频率稳定性;走线尽量短,避免噪声耦合。
  • 相位比较器输出负载:相位比较器为 CMOS 输出,避免驱动过大电容性负载;必要时使用缓冲器或驱动级。
  • PCB 布局:敏感模拟节点(VCO 引脚、比较器输出滤波回路)与数字高速信号隔离,降低相互干扰。
  • 温度与电压裕量:在高温或接近电压范围边缘工作时留有裕量,确保长期可靠性。

六、选型与替代

CD4046BM/TR 适合需要经济、可靠且集成度较高的 PLL 解决方案的场合。若需更高频率、不同性能特性或封装形式,可参考同系列或其他厂商的 PLL 器件(例如不同工艺的 CD4046 变体或专用 PLL 模块),并关注电压范围、最大频率、相位比较器类型等关键参数。

结语:CD4046BM/TR 以其宽电压、宽温度、集成 VCO 与双相位比较器的特性,为中低频时钟与相位控制应用提供了实用且经济的选项。使用时合理选择外部元件与 PCB 布局,可获得稳定可靠的锁相性能。

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