3225爱普生无源晶振编码Q22FA23V0043200智能电表远程抄表专用晶振

3225爱普生无源晶振编码Q22FA23V0043200智能电表远程抄表专用晶振

芯片级变压器也可以用在隔离式DC-DC转换器中,从而将数据和电源隔离集成到单个封装中.iCoupler产品就有这种能力,isoPower隔离式DC-DC转换器可集成到隔离式数据通道所在的同一薄型表贴封装中.考虑上例中的零线电流检测.传统上使用电流互感器,因为它本身能够提供隔离,但电流互感器必须为直流兼容型以免饱和,这会提高其成本.此外它还会引入相位延迟,爱普生晶振相位延迟随频率成分不同而异,因此难以在整个频谱范围内进行补偿.分流电阻具有明显的优势.不仅价格低廉,不受外部交流或直流磁场的影响,而且与用于检测相电流的分流电阻具有相同的特性.然而分流电阻本身不具隔离性.使用集成DC-DC转换器和隔离数据通道的数字隔离器可以解决这一问题.这样就产生一种新的单相防窃电智能电表结构.

3225爱普生无源晶振编码Q22FA23V0043200,智能电表远程抄表专用晶振

爱普生晶振编码	长x宽x高	型号	石英晶振频率	负载	频率25°C	频率公差	工作温度范围
Q22FA23V0037400	3.2x2.5x0.7mm	FA-238V	13.560000MHz	9pF	+/-50ppm	+/-30ppm	-20to+70°C
Q22FA23V0037500	3.2x2.5x0.7mm	FA-238V	12.800000MHz	15pF	+/-10ppm	+/-10ppm	-20to+70°C
Q22FA23V0037900	3.2x2.5x0.7mm	FA-238V	13.300000MHz	10pF	+/-50ppm	+/-50ppm	-20to+70°C
Q22FA23V0038000	3.2x2.5x0.7mm	FA-238V	12.993000MHz	10pF	+/-50ppm	+/-30ppm	-20to+70°C
Q22FA23V0038500	3.2x2.5x0.7mm	FA-238V	12.800000MHz	15pF	+/-10ppm	+/-10ppm	-20to+75°C
Q22FA23V0039600	3.2x2.5x0.7mm	FA-238V	14.745600MHz	7pF	+/-50ppm	+/-30ppm	-20to+70°C
Q22FA23V0039700	3.2x2.5x0.7mm	FA-238V	14.318180MHz	12pF	+/-30ppm	+/-30ppm	-20to+70°C
Q22FA23V0040000	3.2x2.5x0.7mm	FA-238V	12.288000MHz	12pF	+/-15ppm	+/-15ppm	-20to+70°C
Q22FA23V0040100	3.2x2.5x0.7mm	FA-238V	13.500000MHz	10pF	+/-15ppm	+/-15ppm	-20to+70°C
Q22FA23V0041900	3.2x2.5x0.7mm	FA-238V	14.318180MHz	15pF	+/-15ppm	+/-30ppm	-20to+70°C
Q22FA23V0042500	3.2x2.5x0.7mm	FA-238V	12.500000MHz	7pF	+/-50ppm	+/-30ppm	-20to+70°C
Q22FA23V0042600	3.2x2.5x0.7mm	FA-238V	14.745600MHz	10pF	+/-50ppm	+/-30ppm	-40to+85°C
Q22FA23V0043100	3.2x2.5x0.7mm	FA-238V	14.318180MHz	8pF	+/-20ppm	+/-30ppm	-20to+70°C
Q22FA23V0043200	3.2x2.5x0.7mm	FA-238V	12.000000MHz	22pF	+/-50ppm	+/-30ppm	-20to+70°C
Q22FA23V0043400	3.2x2.5x0.7mm	FA-238V	12.800000MHz	15pF	+/-50ppm	+/-30ppm	-20to+70°C
Q22FA23V0043600	3.2x2.5x0.7mm	FA-238V	13.000000MHz	13pF	+/-30ppm	+/-30ppm	-20to+70°C
Q22FA23V0043700	3.2x2.5x0.7mm	FA-238V	12.300000MHz	10pF	+/-50ppm	+/-30ppm	-40to+85°C
Q22FA23V0043900	3.2x2.5x0.7mm	FA-238V	12.000000MHz	18pF	+/-50ppm	+/-30ppm	-40to+85°C
Q22FA23V0044100	3.2x2.5x0.7mm	FA-238V	12.288000MHz	12pF	+/-20ppm	+/-30ppm	-20to+70°C
Q22FA23V0044800	3.2x2.5x0.7mm	FA-238V	13.333000MHz	7pF	+/-50ppm	+/-30ppm	-20to+70°C
Q22FA23V0045100	3.2x2.5x0.7mm	FA-238V	12.288000MHz	10pF	+/-50ppm	+/-50ppm	-40to+85°C
Q22FA23V0045200	3.2x2.5x0.7mm	FA-238V	12.000000MHz	7pF	+/-50ppm	+/-30ppm	-20to+70°C
Q22FA23V0045900	3.2x2.5x0.7mm	FA-238V	12.000000MHz	12pF	+/-20ppm	+/-30ppm	-20to+95°C
Q22FA23V0046500	3.2x2.5x0.7mm	FA-238V	14.318000MHz	33pF	+/-50ppm	+/-50ppm	-20to+70°C
Q22FA23V0046700	3.2x2.5x0.7mm	FA-238V	12.500000MHz	16pF	+/-30ppm	+/-30ppm	-20to+70°C
Q22FA23V0047700	3.2x2.5x0.7mm	FA-238V	12.000000MHz	12pF	+/-100ppm	+/-30ppm	-20to+70°C
Q22FA23V0048100	3.2x2.5x0.7mm	FA-238V	14.920000MHz	10pF	+/-50ppm	+/-30ppm	-20to+70°C
Q22FA23V0048200	3.2x2.5x0.7mm	FA-238V	12.000000MHz	12.5pF	+/-30ppm	+/-30ppm	-40to+85°C
Q22FA23V0048400	3.2x2.5x0.7mm	FA-238V	12.000000MHz	18pF	+/-20ppm	+/-20ppm	-30to+85°C
Q22FA23V0048500	3.2x2.5x0.7mm	FA-238V	12.000000MHz	12pF	+/-10ppm	+/-20ppm	-10to+95°C

零线电流检测AFE与MCU隔离1之间或MCU与通信模块之间隔离2必须通过隔离栅1和2的信号是数字信号.为了隔离数字信号已经开发出许多技术.传统方法使用带LED和光电二极管的光耦合器,较新的技术则是使用芯片级变压器的数字隔离器.日本进口晶体例如与光耦合器相比,iCoupler数字隔离器具有许多优势,包括更可靠、尺寸更小、功耗更低、通信速度更快、时序jing度更佳、易于使用.芯片级隔离技术也可以与其他半导体电路结合,实现小尺寸、高集成度解决方案.在数据速率较高的应用中,这些优势尤其显著智能电能计量就是这样一种应用,目前新式电表需要更高的实时信息流量.

3225爱普生无源晶振编码Q22FA23V0043200,智能电表远程抄表专用晶振