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YJX TXM3.579545M0002491HDDEO00T
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YJX TXM3.579545M0002491HDDEO00T
- Type
- YJX
- Minimum package
- 1000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YJX
- Electronic Component
- TXM3.579545M0002491HDDEO00T
- Electronic Component
- 1
- Package
- HC-49S-SMD
- Electronic Component
- Passive Crystal Oscillator
- Electronic Component
- 1.23g
- Frequency
- 3.579545MHz
- Electronic Component
- 1
- Electronic Component
- BM0264594698
- Operating Temperature
- 30℃~+85℃
- Electronic Component
- ±20ppm
- Crystal Oscillator Type
- SMDCrystal Oscillator
- Load Capacitor
- 15pF
- Frequency
- ±30ppm
- 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.
TXM3.579545M0002491HDDEO00T 无源贴片晶振产品概述
一、产品核心属性
TXM3.579545M0002491HDDEO00T是雅晶鑫（YJX）品牌推出的通用型无源贴片晶振，采用HC-49S-SMD封装形式。作为时钟基准器件，无源晶振无需内置振荡电路，仅需外部匹配电容即可与芯片振荡电路配合产生稳定时钟信号，具备成本低、可靠性高、寿命长等特点，适配多数电子系统的时钟需求。
二、关键性能参数详解
该晶振的性能参数围绕时钟精度、稳定性及环境适应性设计，核心参数如下：
- 频率特性：标准频率为3.579545MHz（NTSC制式视频副载波基准频率），常温频差±20ppm（即频率偏差≤±71.59Hz），满足消费电子、工业控制等场景的精度要求；
- 负载电容：匹配负载电容15pF，需通过外部并联电容（通常晶振引脚各接7.5pF）实现频率校准，偏离该值会导致频率偏移或起振不稳定；
- 频率稳定度：全温范围（-30℃~+85℃）±30ppm（频率波动≤±107.39Hz），可适应温差较大的工业/车载场景；
- 等效串联电阻（ESR）：典型值120Ω，ESR越小起振难度越低，该参数确保晶振与多数MCU/FPGA内置振荡电路快速起振；
- 工作温度：覆盖-30℃~+85℃，符合工业级温度标准，可在户外、车间等环境稳定工作。
三、典型应用场景
基于频率特性及环境适应性，该晶振主要应用于以下领域：
- 消费电子：电视、机顶盒、DVD的视频解码时钟（NTSC制式副载波），保障图像色彩及同步稳定；
- 工业控制：PLC、传感器模块、工业仪表的时钟基准，满足工业环境的温度及可靠性要求；
- 通信设备：蓝牙/WiFi模块辅助时钟、路由器参考时钟，保障数据传输时序精度；
- 车载电子：车载信息娱乐系统、仪表盘时钟，适配车载温差及振动环境（HC-49S封装抗振性较好）。
四、封装与可靠性设计
- 封装形式：HC-49S-SMD贴片封装，体积小巧（约11.5×4.7×4.2mm），兼容自动化SMT工艺，降低生产难度；
- 可靠性设计：无源结构无内置有源器件，避免半导体老化导致的时钟失效；金属外壳屏蔽电磁干扰（EMI），提升抗干扰能力；
- 寿命稳定性：内部采用高精度石英晶体，理论寿命≥10年，全温范围频率稳定度可靠，适合长期工作场景。
五、选型与使用注意事项
- 负载电容匹配：严格按15pF设计外部电容（通常引脚各接7.5pF），避免频率偏移；
- 驱动能力匹配：若MCU驱动不足，可外接放大器提升驱动，避免不起振/停振；
- 温度限制：避免超-30℃~+85℃范围使用，否则频率稳定度下降；
- 焊接工艺：回流焊温度≤260℃（峰值持续≤10秒），避免过热损坏晶体；
- 抗振防护：高振动场景（如车载发动机附近）需额外防护，避免机械结构损坏。
该晶振凭借平衡的精度、稳定性及成本优势，成为消费电子、工业控制等领域的主流时钟基准选择。
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