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TAXM13.56M2ILDBET2T是雅晶鑫(YJX)针对高频通信与识别场景推出的一款13.56MHz石英贴片晶振,采用HC-49S-SMD封装,兼顾精度、可靠性与批量生产便利性,是RFID阅读器、智能门禁等设备的高性价比时钟源选择。
这款晶振属于普通石英谐振器(无温补/压控功能),核心定位为高频(13.56MHz)场景的稳定时钟基准。13.56MHz是国际RFID高频段(ISO 14443、ISO 15693协议)的标准频率,天然适配各类RFID相关设备;同时,贴片封装支持自动化SMT贴装,适合大规模量产,降低生产环节人工成本。
性能参数直接决定晶振在实际场景中的表现,TAXM13.56M2ILDBET2T的核心参数适配高频应用需求,具体如下:
频率与常温精度
标称频率13.56MHz,常温(25℃±2℃)频差±20ppm(百万分之一)。换算为实际偏差:13.56MHz×20×10⁻⁶=±271.2Hz,可满足RFID阅读器射频信号同步要求,避免因频率偏移导致识别失败或误判。
温度稳定性
工作温度-20℃~+70℃,对应频率稳定度±30ppm。温度变化范围内频率最大偏差±406.8Hz,能适应室内外常规环境(如户外门禁、商场RFID盘点设备),无需额外温补电路即可保证基本稳定性。
负载电容匹配
负载电容20pF,是晶振与振荡电路的核心匹配参数。若电路等效负载(外接电容+寄生电容)偏离较多,会导致频率偏移甚至无法起振,设计时需通过两个40pF电容串联(等效20pF)实现精准匹配。
等效串联电阻(ESR)
ESR为60Ω,属于石英晶振较低水平。较低ESR可降低振荡电路驱动功率(减少功耗),提升启动速度与长期可靠性——ESR过高易导致振荡不稳定、功耗增加,甚至缩短寿命。
HC-49S-SMD为贴片式封装,尺寸紧凑(远小于插件式),支持标准SMT回流焊工艺,适合小型化设备(如手持RFID阅读器、智能卡读卡器)设计,同时避免插件式的人工焊接成本。
雅晶鑫(YJX)是国内专注石英晶振研发生产的厂商,拥有10余年行业经验,产品符合RoHS、REACH环保标准,适合出口及国内环保要求。TAXM系列晶振经过高低温循环、振动测试等可靠性验证,平均无故障时间(MTBF)达数十万小时,可保证长期稳定运行。
TAXM13.56M2ILDBET2T凭借稳定的13.56MHz频率、合理精度参数、贴片封装便利性,成为高频RFID及相关通信设备的高性价比时钟源。其适配常规工作环境,支持批量自动化生产,适合对成本敏感且需要稳定时钟基准的中低端应用场景。
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