【应用】符合AEC-Q200被动元件汽车级认证的小型化晶振RA8900CE在汽车仪表系统中的应用
当前，汽车仪表系统的MCU实时时钟模块大多使用外部晶振。笔者推荐一款高性能、高稳定性和小型化的晶振应用于汽车仪表系统——EPSON公司的RA8900CE。
图1 RA8900CE应用于汽车仪表系统的设计原理框图
对于实时时钟，最重要的莫过于时钟模块的精度和工作的稳定性，以及时钟模块的体积。一般仪表的PCB面积参数约为30*13mm，除去功率器件，主控周边的空间较小。为了满足设计需求，从细微处入手，应该选择小尺寸、高可靠性的晶振。在图一汽车仪表系统应用中，B为RA8900CE，其与MCU的通信通过IIC总线（400KHz），其尺寸参数为3.2x2.5x1.0mm，内置DTCXO，具有电源切换和温度传感器等功能，符合AEC-Q200被动元件汽车级品质标准认证，满足汽车仪表系统的全部使用需求。
图2 RA8900CE产品实物图
RA8900CE的工作电源电压范围为2.5-5.5V，温度补偿电压为2.0-5.5V，可稳定输出32.768kHz的频率，频率精度极高，在工作温度范围之内为±3.4x10-6（相当于每月±9秒的偏差），定时器中断功能可设置为1/4096秒和4095分钟之间，同时RA8900CE可通过组合使用日、时与分，可实现报警设置。在低功耗方面，当VDD为5V时，它的典型功耗值为0.72uA，可满足汽车仪表系统低功耗使用需求。
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EPSON(爱普生) 晶体器件 选型指南
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型号- X1B000142000400,X1G005461XXXX00,RA8804CE,X1G006041XXXX14,SG2016VHN,TG2016SMN,X1B000471000815,VG3225EFN122.880000MHZCJGHBA,X1G004171XXXX00,X2A000311XXXX00,SG-210 STF,RX8900CE UC,SG2016EGN,SG-WRITERII,RX8900CE UB,RX8900CE UA,X1B000292000300,RX8130CE,X1B000301000100,X2A000351XXXX00,TG2520SMN,X1G004541XXXX00,SG5032VEN,X1G005941XXXX15,X1G005901XXXX15,SG-8200,SG2520EHN,SG-8201,X1G0052010001,SG2016EHN,Q4140455100020041,FC-12M32.768000KHZ12.5+20.0-20.0,X1G005531XXXX00,SG2016CAA,SG2520VHN,X1B000142000300,X1G0053210001,X1B000471000715,RA8804CE XA,TG5032SGN,TG7050CKN30.720000MHZCAHHGA,RA8804CE XB,X1G006191XXXX16,X1G005311XXXX00,X1G005351XXXX00,X1G006111XXXX15,X1A000121XXXX00,Q41457152000100,X2A000201XXXX00,Q4180255100020040,SG-8201 SERIES,SG2520EGN,X1B000182000300,X1G005981XXXX16,RA8000CE YB B8,SG2016CAN,X1G005421XXXX27,RX-8803LC AA,VG7050CDN,X1G005571XXXX00,X1B000491A01915,FA-12824.000000MHZ12.0+10.0-10.0,X1B000292000200,X1G004561XXXX0096,SG-8101CGA170.000000MHZTCHPA,Q418564C2000100,SG2016VGN,SG2520VGN,RA8000CE YB C0,TG5032SFN,Q41802552000100,X1A000161XXXX16,M-G552 SERIES,X1G0055710001,SG5032EEN,TG5032CGN,X1G005011XXXX00,SG5032CAN,X1G004801XXXX00,TG2016SMN26.000000MHZECGNNM,X1B000202000100,X1B000421000215,X1B000142000200,TG5032SMN,XV7081BB,X1G006221XXXX15,RA8900CE,SG2520CAA,RX4111CE,SG-9101,X1B000172000200,RX8900SA,VG7050EFN,SG-8018,X1G005601XXXX00,X2A000171XXXX00,SG2016CAN25.000000MHZTJHA,TG3541CEA,SG-8018CG25.000000MHZTJHPA,X2F000011000100,X1A000201XXXX18,SG-8506 SERIES,MG7050,X1B000271A00500,FA2016AA24.000000MHZ12.0+10.0-10.0,SG-8000,X1B000401A00116,FC-135R,TG5032CMN,SG5032CCN,RX-8803SA AA,X1B000202000200,X1B000421000115,X1G005541XXXX00,X1B000142000100,TG2016SKA,RX-8564LC,TG5032SKN,M-A352AD10,XV4001BC,VG7050VFN,XV4001BD,RX-8035LC B,X1G005951XXXX16,FA1210AN,X1B000131XXXX00,X1B000172000100,XV4001B*,Q13FC1350XXXX00,TG5032CFN30.720000MHZCAGNDA,X1B000501A01015,X1G004281XXXX00,RX-4045SA AC,X1B000311000100,TG2016SLA26.000000MHZECGNNM,TG2016SLA,TG2016SLN,X1B000271A00400,SG-8503 SERIES,SG-8101,SG-8018 SERIES,SG-9101CB,TG5032CKN,SG-9101CA,SG2520HHN,X2G000191000100,RX-4035SA B,SG-9101CE,Q41404552000100,RX-4045SA AA,SG-9101CG,TG3225CEN39.000000MHZKFGNNM,X1G0052110001,SG3225EEN156.250000MHZCDGA,XV4001BX,X1G006031XXXX14,TG5032CGN30.720000MHZCAGHDA,X1G005491XXXX00,X1B000072000100,SG-WRITER II,X1G005881XXXX15,TG-5006CE,X1E000021XXXX17,TG-3541CEA XA,TG-5006CG,SG-8503CA156MHZ625MHZAPRLZ,X1A000021XXXX00,TG-3541CEA XB,SG3225EEN,X1B000471000415,SG3225CAN,SG2520HGN,FA-238,X1A000061XXXX00,X1B000391000116,X1B000202000300,SG3225VEN,X1E000411XXXX26,X1E000451XXXX26,RX4901CE XS A0,TG-5006CJ,SG-8018CA,SG-8018CB,TSX-3225,X1A000171XXXX18,RX-4045SA,VG7050CDN122.880000MHZCJGHBA,SG-8201CJ,FA-128,SG-8018CG,SG-8201CG,SG-8018CE,X1G0051810001,SG-8506CA156.2MHZ0X37APRLZ,RX4901CE XS B0,SG-8200 SERIES,X1G005341XXXX00,SG-9101 SERIES,X1G006141XXXX15,RX-4035SA,X1G004251XXXX00,X1B000471000315,X1G005561XXXX00,X1G004291XXXX00,RX8111CE,TG-5510CB-***38.880000MHZ,X2F000021000100,VG5032EFN,RX4901CE XS C0,SG-9101CGA170.000000MHZC20PJAAA,X1G005931XXXX15,FC1610BN32.768000KHZ12.5+20.0-20.0,X1B000501A00915,RX4901CE XS D0,SG-8200CG,SG-8200CJ,XV-3510CB*********KHZ,X1G005161XXXXXX,RA8900CE UA,X1E000341XXXX00,RA8900CE UB,RX-8803SA,RX-8025NB,SG2016HGN100.000000MHZCDHPZA,X1B00023200010039,X1B000471000615,X1G0050311001,MG7050HAN,SG3225EAN,X2A000121XXXXXX,X1B000192000200,SG2016EGN156.250000MHZCDHPZA,X1B000182000200,X1G006201XXXX16,FC2012SN,X1B000242000100,M-G370PD,FA2016ASA38.400000MHZ7.0+10.0-10.0,X1G0055810001,RX-4571SA,X1B000292000100,SG-8201CJ170.000000MHZTDJPA,SG3225VAN,FC1610AN32.768000KHZ12.5+20.0-20.0,X1G005721XXXX16,X1B000361A00100,RX-8025SA AC,FC2012SN32.768000KHZ12.5+20.0-20.0,RX-8025SA AA,RX8900SA UB,RX8900SA UC,RX-8803LC,RX8900SA UA,TG5032CKN38.880000MHZCAHHGA,SG-8504 SERIES,VG5032EDN,RX-8035LC,SG-8201CJA170.000000MHZTDJPA,RX-8035LC AC,RX-8035LC AA,XG-2121CA,X1G005221XXXX00,FC-12M TYPE,X1B000351000200,VG5032VFN,XC1011SD,X1B000301000300,SG-8504CA156.2MHZNNNNAPRLZ,RA4000CE,X1G005441XXXX25,X1G005551XXXX00,TG3225CEN,X1G005501XXXX00,X1B000471000515,X1G005991XXXX16,XV4001K*,RX-8035SA AA,X1G005331XXXX00,RX-8035SA AC,Q14FC1350XXXX00,X1B000192000300,RX8804CE,TG-5510CA-***30.720000MHZ,X1B000182000100,SG2016HGN,X1G004241XXXX00,SG-8101 SERIES,X1B000301000200,RX-8571LC,FA-20HS,FC-135 TYPE,X1B000361A00200,TG-3541CE,X1A000181XXXX18,SG2016HHN,X1B000351000100,RX-8035SA B,X1G005101XXXXXX,FA2016ASA,VG5032VDN,X1B000491A00915,FC-12M,X1G006061XXXX14,SR3225SAA,X1B000122XXXX00,X1G005481XXXX00,X1G005891XXXX15,Q22FA23V0XXXX17,SG-850XCA,SG2016CAA25.000000MHZTJHA,SG-8018CGA,X1B000481000415,X1E000401XXXX18,SG-210STF,TG7050XKN,MG7050VAN,Q414571C2000100,TG2016SLN26.000000MHZEWHSNM,XV4001KD,TG-5510CA,X2E0000210002XX,XV4001KC,RX-8025SA,SG3225EAN156.250000MHZKJGA,X1G005921XXXX15,TG-5510CB,X1G004451XXXX00,SG-8201CJA,SG3225HBN,FC-135R32.768000KHZ12.5+20.0-20.0,X1G006021XXXX14,Q91PR10W00018,SG-8200CJ170.000000MHZTJJPA,RX-8803SA UB,RX-8803SA UA,RX-8803SA UC,TG1612SLN26.000000MHZEWHSNM,SG-8101CE,SG-810
RA8900CE Real Time Clock Module Application Manual
型号- X1B000271A00600,X1B000271A00500,RA8900CE UC,X1B000271A00400,RA8900CE,RA8900CE UA,RA8900CE UB
EOL notice of products due to the end of production of parts (IC) (20-027E)
型号- Q414574710001 XX,Q33310N70XXXX XX,X1G004491XXXX XX,SG-310SDN,Q414574C2000X XX,TG-3530SA,RX-8581NB,SG-3030JF,EG-2101CA,SG-3030JC,Q41458191000X XX,Q71350020XXXX XX,Q3806CAXXXXXX XX,X1B000412000100,SG3225CAN,RA-4574SA,X1B00002X000X XX,SG-8503CA,Q3102JC0X000X XX,X1G003931XXXX XX,SG-3030CM,SG7050EEN,VG-4231CE,SG-310SCN,VG-4231CB,Q4145745X000X XX,Q3103LC02000X XX,Q3801CA00XXXX XX,SG-8018CA,SG-8018CB,SG3225HBN,X1G004511XXXX XX,Q41A47452000X XX,X2A000011XXXX XX,SG-8018CG,RTC-4543SA,Q3802CA00XXXX XX,SG-8018CE,Q41457449X001 XX,SG7050CBN,X1G004461XXXX XX,SG-3031CMA,Q4145435X000X XX,RX-4801SA,Q418581710002 XX,EG-2102CA,X1G004741XXXX XX,RX-4581NB,VG7050CDN,SG5032HBN,X1G003691XXXX XX,RX8111CE,SG-3031CM,Q71800020XXXX XX,VG-4232CA,X2A000091XXXX XX,X1B000211XXXX XX,RA4803SA,VG-4512CA,X1G003941XXXX XX,RTC-4574NB,RX-8803SA,RC4574SA,EG-2001CA,RX-8581JE,Q4185815X000X XX,RA8900CE,Q3803CA00XXXX XX,RX4111CE,XV-3900CB,Q4185819X0002 XX,Q3102JF0X000X XX,RX8900SA,VG7050EFN,RX-4571SA,SG5032CBN,RX6110SA,RX8900CE,X1G003951XXXX XX,XG-2102CA,Q3721SA02000X XX,RX-8581SA,Q33310ND0XXXX XX,RX-4571LC,SG-3040LC,SG-210SXH,X1G004531XXXX XX,RA4000CE,EG-2002CA,RA-8581SA,X1B00001X000X XX,RTC-4574JE,XV-8000LK,SG7050EBN,X1M000091XXXX XX,VG2520CAN,RX-4803SA,RA8803SA,RX-8571SA,RX4901CE,SG-3030LC,Q42730181000X XX,RTC-4574SA,XV-3500CB,RTC-7301SF,Q3102LC02000X XX,X1G004401XXXX XX,X1G003921XXXX XX,XV-8000CB,RX-4574LC,RX-8801SA,TG-3541CE,Q41A8815X0001 XX,VG7050CAN
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型号- RA4000CE,RTC-CE,X1G005171XXXX XX,RA8804CE,X1B000501A0XX XX,RA8900CE,TG-3541CEA,SG-9101CGA,X1G005281XXXX XX,X1B000491A0XXX XX,P-SPXO,X1B000361A00X XX,TG-3541CEX,RA8000CE,X1B000271A00X XX,X1B000381A00X XX,SG-8101CGA
Epson（爱普生） 实时时钟芯片（RTC）RA8900SA/CE数据手册
型号- RA8900SA,X1B000282A00500,X1B000271A00600,X1B000271A00500,X1B000271A00511,RA8900,X1B000271A00400,X1B000271A00411,RA8900CE,X1B000282AXXX00,RA8900CE UC,RA8900CE UA,RA8900CE UB
X1A0001810003xx FC2012AA 32.768000 kHz 7.0 +20.0-20.0 kHz Range Crystal unit
型号- FC2012AA32.768000KHZ12.5+20.0-20.0,X1A000181XXXX18,FC2012AA 32.768000 KHZ 7.0 +20.0-20.0,FC2012AA,X1A0001810003XX
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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
pbfree list
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,FA-238,SG2520HGN,SG2016EGN,SG-8503CA,VG7050EBN,TG7050XKN,MG7050VAN,RX8130CE,SG7050EEN,SG3225VEN,TG-5510CA,RX-8025SA,TG2520SMN,TG-5510CB,SG7050CAN,SG5032VEN,SG-8201CJA,TG-5006CJ,SG-8018CA,SG-8018CB,TSX-3225,SG3225HBN,SG2520EHN,RX-4045SA,FA-128,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,RA4803SA,FC-135,SG5032EEN,VG7050EAN,TG5032CGN,FA-118T,SG5032CAN,RX-8803SA,XV4001KX,SG7050VAN,RX-4035LC,RX-8025NB,FA-238V,TG5032SMN,FA1612AS,XV7081BB,RA8900CE,XV7001BB,MG7050HAN,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,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,FC1610BN,MG7050EAN,RX-4803SA,SG-9101CGA,RA8803SA,VG3225VFN,RX-8571SA,RX8804CE,FA1210AN,SG-8504CA,RX4901CE,SG2016HGN,TG7050XMN,FC2012AA,TG2520CEN,TG2016SLA,MC-30A,MC-306,RX-8571LC,TG2016SLN,TG-3541CEA,TG-3541CE,SG7050VEN,RTC-8564JE,SG2016HHN,SG5032EAN,SG-9101CB,TG5032CKN,SG-9101CA,SG2520HHN,RX-4571NB,RX8010SJ,RA-4565SA,SG-9101CE,FA2016ASA,SG-8101CGA,SG-9101CG,VG5032VDN
【经验】实时时钟模块RA8900CE用在汽车T-BOX上，频率精度高达5ppm，功耗低节省PCB空间
EPSON推出的RA8900CE内置了32.768KHZ的石英晶振和实时时钟芯片，具备振荡电路、时钟、日历等功能，同时使用了DTCXO进行温度补偿，使得其晶体单元在全温度范围内的频率精度高达5ppm，可以实现精确计时功能。本文将以实例讲解实时时钟模块RA8900CE在汽车T-BOX上的应用。
设计经验 发布时间 : 2018-10-07
【方案】高动态高速TOF相机优选元器件方案
描述- 本方案通过采用Melexis公司汽车级的高动态高速TOF传感技术、EPC公司的eGaN工艺的高速、低RDS(on)晶体管及其相关器件，帮助TOF相机实现高动态高速测量，避免红爆现象并可在强日光下工作，同时帮助降低发热量，提升可靠性，产品应用更广泛。
型号- EPC2212,EPC2016,MLX75023,FC-12M,MLX75024,MLX75123,EPC2032,EPC2031,SGM41285,EFM32TG11,EFM32ZG,SG-8018,EPC2202,SGM6607,FA-20H,EPC2206,EPC2021,EPC2022,TSX-3225,SGM6232,PH,SGM220,SGM601X,FA-128,FC-135,RX8010SJ,EFM32HG,MGV
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提供CE测试服务，通过晶体回路匹配分析，给出测试报告。支持EPSON所有MHz无源晶体、32.768KHz晶体。支持到场/视频直播测试，资深专家全程指导。
实验室地址： 深圳/上海 提交需求>
可定制分流器电阻范围20uΩ~100uΩ，可自由设计铜排形状尺寸，电镀：镀锡/镀镍。支持RoHS指令 、AEC-Q200。认证资格：IATF16949;ISO9001；检测精度：0.1%。
最小起订量： 100个 提交需求>
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