【产品】专门为高精度计时设计的汽车级RTC RA8900CE,出厂已校准并带有DTCXO
爱普生的汽车级RTC RA8900CE专门为高精度计时设计,使用数字温度补偿晶体振荡器(DTCXO)技术,使精度在全温度范围内能够达到±3.4 或 ±5 ppm,相当于±9 or ±13 seconds per month。相对于其他集成到MCUs内部的需要接外接晶体单元的RTC而言,爱普生的RA8900CE无需外接晶体单元和负载电容,因为这些已经集成在内部,并且出厂前已经调整好。其具有更高的精度和更低的功耗。
优势
•内置kHz 晶体单元
•高精度,使能功能,采用数字温度补偿技术(DTCXO)
•自动备用电池切换功能
•小尺寸
•低功耗
主要特点
•出场已校准带有DTCXO的RTC,并且内部集成晶体单元
•高精度: 3.4 ppm@ 40 to +85 C ( 9 s/月.)
•时钟输出: 1 Hz, 1024 Hz, 32.768 kHz
•I 2 C Interface: Fast mode (400 kHz)
•The I2C-Bus is a trademark of NXP Semiconductors
•供电电压: 2.5-5.5 V (main), 1.6-5.5 V (备份电池)
•低功耗: 0.7 µA ( typ ) backup current
•具有AEC Q200 Grade 3 资格,适用PPAP data
爱普生开创了实时时钟先河,然后在1986年推出RTC,在2008年又第一个推出带有数字温度补偿功能(DTCXO)的RTC。爱普生一直以来在RTC模块市场都保持第一的占有率,一直引领这个市场。爱普生会一直持续的创新,致力于制造出更高精度,更低功耗,更宽工作温度范围的RTC。
RTC从本质上说,像一个给电子系统计时间的I2C通讯手表。EPSON的 RA8900CE 内部包含一个晶体单元,一个数字补偿功能的晶振(DTCXO)。其计数器能够保存时间和日期的踪迹。Epson的 RA8900CE 也带有time-keeping 功能,比如alarm和timers.
高精度带有使能功能的数字温度补偿RTC
传统的RTC精度基于内部音叉结构的晶体单元(tuning-fork crystal),温度特性依赖于此。传统晶体的精度通常是指室温环境下的精度。在整个全温度范围内-40 to +85 来看,其频率误差会达到最大-150ppm,相当于每个月6.5分钟。
Epson的汽车级DTCXO RTC RA8900CE 具体温度补偿功能,出厂校准后全温度范围-40 to +85精度< ±3.4 ppm,相当于每个月只有±9 seconds per month,这是汽车级别最基本的要求。适用于汽车时钟,娱乐,电源管理或其他汽车级别应用。
DTCXO 技术只能通过集成晶体实现。集成晶体可消除电路板上负载电容导致的频率变化,并允许振荡器和晶体组合的方式进行出厂校准。除了提高精度外,RTC内部集成晶体还节省了设计者的电路板空间,避免了因湿度或电路板漏电而导致的启动问题。
Time-Keeping Functions
所有时钟和日历功能,包括alarms and timers,都可通过 I2C 接口访问。爱普生的RA8900CE还具有频率输出引脚,可设置为1 Hz, 1024 Hz, or 32.768 kHz.
Automotive Quality
爱普生 RA8900CE 采用专用汽车生产线制造,符合所有适用的汽车质量标准,包括 AEC-Q200 3 级、ISO9001 和 TS16949。PPAP 数据可应要求提供。
Automatic Battery Backup
爱普生的RA8900CE可以检测主供电,并自动切换到电池或超级电容器,采用备用电源。爱普生 RA8900CE 适用于 2.5-5.5 V 主供电。在备份模式下,电池电压降至 1.6V 时仍然可以保持时间,2V以上仍有温度补偿功能。
Ordering Options
爱普生的RA8900CE有三种可选等级和一个封装尺寸。
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本文由Homer转载自EPSON,原文标题为:Epson Timing Devices AUTOMOTIVE RA8900CE DTCXO RTC,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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手链列表
描述- ●Segment and Business area ■Printing Solutions Business Segment ▲Office and home printing business ▲Commercial and industrial printing business ■Visual Communications Business Segment ▲Visual communications business ■Manufacturing-related and wearables Business Segment ▲Manufacturing solutions business ▲Wearable products business ▲Microdevices and others business ▲PC business
型号- FC-12M,RA8804CE,XV4001BX,SR3225SAA,SG2016VHN,TG2016SMN,FA1008AN,TG-5006CE,TG-5006CG,SG-210 STF,SG3225EEN,RX-4803LC,SG3225CAN,TG7050CKN,FA-238,SG2016EGN,SG-8503CA,VG7050EBN,RX8130CE,SG7050EEN,SG3225VEN,TG-5510CA,TG7050SKN,RX-8025SA,TG2520SMN,TG-5510CB,SG5032VEN,SG7050CAN,SG-8201CJA,TG-5006CJ,SG-8018CA,SG-8018CB,TSX-3225,SG3225HBN,SG2520EHN,RX-4045SA,FA-128,SG-8201CJ,SG-8018CG,SG-8201CG,VG7050ECN,SG2016EHN,SG-8018CE,SG-8101CE,RX-8731LC,SG2016CAA,SG-8101CG,SG2520VHN,SG-8101CA,SG-8101CB,SG-3031CMA,TG5032SGN,RX-4035SA,EG-2102CB,EG-2121CB,SG2520EGN,SG2016CAN,SG-8506CA,VG7050CDN,RX8111CE,XG5032HAN,SG-3031CM,SG7050CCN,XV7011BB,XV-3510CB,RX8901CE,VG5032EFN,SG2016VGN,TG-5511CB,SG2520VGN,TG-5511CA,TG5032SFN,XG-2103CA,SG-8200CG,FC-13A,SG-8200CJ,RA4803SA,FC-135,SG5032EEN,VG7050EAN,TG5032CGN,FA-118T,SG5032CAN,XV4001KX,RX-8803SA,SG7050VAN,RX-4035LC,RX-8025NB,FA-238V,TG5032SMN,FA1612AS,XV7081BB,XV7001BB,RA8900CE,RTC-8564NB,RX4111CE,SG3225EAN,TG1612SLN,FC2012SN,MC-146,RA8000CE,RX-8035SA,RX8900SA,VG7050EFN,RX-4045NB,RX-4571SA,RX6110SA,FC3215AN,TG5032CFN,SG3225VAN,VG3225EFN,FA-20H,RX8900CE,RX-8803LC,FC2012AN,SG5032VAN,MG7050,FA2016AA,FA-238A,SG7050EAN,VG5032EDN,FC1610AN,RX-8035LC,XG-2102CA,XG-2121CA,FC-135R,RX-4571LC,TG5032CMN,VG5032VFN,XC1011SD,SG5032CCN,RA4000CE,XV7021BB,FA2016AS,TG3225CEN,TG2016SKA,RX-8564LC,TG5032SKN,VG7050VFN,MG7050 SERIES,FC1610BN,RX-4803SA,SG-9101CGA,RA8803SA,VG3225VFN,RX-8571SA,RX8804CE,FA1210AN,SG-8504CA,RX4901CE,TG7050CMN,SG2016HGN,FC2012AA,TG2520CEN,TG7050SMN,TG2016SLA,MC-30A,MC-306,RX-8571LC,TG2016SLN,TG-3541CEA,TG-3541CE,SG7050VEN,RTC-8564JE,SG2016HHN,SG5032EAN,SG-9101CB,TG5032CKN,SG-9101CA,RX-4571NB,RX8010SJ,RA-4565SA,SG-9101CE,FA2016ASA,SG-8101CGA,SG-9101CG,VG5032VDN
内置32.768KHz晶体,稳定度高达2ppm的国产实时时钟芯片在车载电子中的应用
描述- 大普通信,是一家集研发、制造、销售于一体的国家级高新技术企业,围绕时钟和射频技术,提供从芯片、器件、模组到设备的核心技术和产品解决方案,全方位满足全球通信、电力、工控、医疗、仪器仪表、导航定位、汽车电子等众多领域客户的差异化需求。
型号- INS5830A,INS5903X,NS5710C,NS5710D,INS591X,INS5609,INS5699系列,INS5699S,NS5710A,INS5101A,INS5710系列,INS5902A
电子商城
品牌:EPSON
品类:Temperature Compensated Crystal Oscillator
价格:¥3.4249
现货: 58,244
现货市场
服务
可根据用户端子定制线束,制程能力:Min: 0.13mm2、Max: 120mm2;具有设计方案验证、定案、样品交付及量产快速响应能力。
最小起订量: 1000pcs 提交需求>
可定制插座连接器的间距1.25mm~2.54mm;列数:单列/双列/三列/四列;端子类型:直焊针、直角焊针、表面贴装式、无焊柔性针压接、绕接、载体.;镀层、车针长度/直径、连接针长度等参数可按需定制。
最小起订量: 1 提交需求>
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