【选型】2.5KW储能主控MCU用无源晶体可选25MHz S3225000201060A7,精度达±10ppm
为保证2.5kW储能主控MCU实现高精度设计,市面上一般选择25MHz耐高温、高精度无源晶体,相关选型因素参考如下:
1、额定频点:25MHz;
2、高精度:全温范围精度<100ppm;
3、耐高温:高工作温度要求>85℃;
4、小体积。
针对如上设计需求,推荐选择晶光华S3225000201060A7,采用3225封装,额定频点25MHz,负载电容20pF,常温25℃条件下精度达±10ppm,全温-40℃~125℃精度±70ppm,工作温度范围-40℃~125℃,典型电性参数参考如下图1所示。
图1:晶光华无源晶体S3225000201060A7典型电性参数
推荐理由如下:
1、 宽的工作温度范围-40℃~125℃,可满足耐高温工作条件;
2、 常温25℃条件下精度达±10ppm,全温-40℃~125℃精度±70ppm,可满足高精度设计需求;
3、 采用3225封装,可节省PCB板空间,有利于产品小型化设计;
4、 具有良好的供货交期,可以快速支持样品和量产服务。
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为满足流量控制仪主控MCU实现高精度流量控制检测,需要一颗外置8MHz无源晶体,推荐选择晶光华无源晶体G5308000201080,采用5032封装,2pin,标称频率8MHz,负载电容10pF。
【选型】国产16MHz无源晶体S3216000091060助力玩具车遥控器设计,精度±10ppm,采用3225小尺寸封装
为保证玩具车遥控器2.4G无线收发SoC芯片实现高精度信号遥控,一般需要一颗外置的16MHz无源晶体,推荐选择晶光华无源晶体S3216000091060,采用3225封装,4pin,额定频率16MHz,负载电容9pF,常温25℃条件下精度±10ppm。
【选型】40MHz无源晶振S32400001B0730CH助力后装行车记录仪主控MCU设计,精度达±7ppm
在后装行车记录仪应用中,为保证主控MCU可正常工作,需要一颗外置的40MHz无源晶体,推荐选择晶光华无源晶体S32400001B0730CH,采用3225封装,4pin,额定频率40MHz,负载电容11.5pF,常温25℃条件下精度±7ppm。
晶光华(JGHC)晶振选型指南(中文)
目录- 石英晶体谐振器 时钟晶振 热敏晶振 普通振荡器(Oscillator) 压控振荡器(VCXO) 温补振荡器(TCXO) 恒温振荡器(OCXO) 32.768KHZ振荡器
型号- MC146,VCXO3225,SMD5032,OCXO1612,SMD2520,SMD3215,M49SSMD,OSC1612,TCXO1612,OCXO2520,2520,Y206,OSC2520,TCXO2520,HC-49SBSMD,VCXO7050,VCXO5032,TCXO5032,GLASS3225,HC-49SSMD,SMD2012,Y308,OSC7050,SMD3225,SMD2016,OSC5032,SMD1612,OSC2016,GLASS5032,TCXO2016,GLASS8045,OSC3225,TCXO3225,OCXO2016,HC-49S
晶光华(JGHC)晶振/晶体选型表
无源晶振,频率范围涵盖800KHZ到300MHZ,频率温度特性,-40~125度±50ppm,最小封装尺寸SMD1612,精度最高达到±5ppm,年老化率仅3ppm;有源晶振,SPXO频率精度能达到±25ppm,TCXO频率精度可±0.5ppm,频率更高,如OSC7050 184.32mhz,电源电压至1.8V,最高5.0V,启动时间5mSec,相噪低至1ps,年老化率低至1ppm;音叉时钟晶振,RTC模块,为系统提供时钟的,32.768KHZ是最常用的频率,主要应用于有计时功能的电子产品。有源系列包括HC-49S、HC-49SSMD、M49SSMD、SMD6035、SMD5032、SMD3225、SMD2520、SMD2016、SMD1612等;无源系列包括普通晶体振荡器(SPXO)、温度补偿晶体振荡器(TCXO)、恒温晶体振荡器(OCXO)、电压控制晶体振荡器(VCXO)
产品型号
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品类
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频率(MHZ)
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电压(V)
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温度稳定度(PPM)
|
O2224000153325
|
石英晶体振荡器
|
24MHZ
|
3.3V
|
25PPM
|
选型表 - 晶光华 立即选型
世强代理的有KDS的产品吗?
世强暂时没有代理KDS的产品线,不过,有EPSON、KYOCERA、国产晶光华等晶振产品线,如果有选型需求,可以参考如下链接:【选型】Epson(爱普生)晶体、晶振、实时时钟、角速度传感器选型指南【选型】Kyocera(京瓷)晶体振荡器/晶体单元选型指南【选型】晶光华(JGHC)电子有源晶振/无源晶体选型指南
【应用】12MHz无源晶体S3212000121080助力动车组座位显示系统主控MCU,调整频差低至±10ppm
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