手機(jī)站
在線留言 收藏本站 網(wǎng)站地圖 會(huì)員登錄 會(huì)員注冊(cè)
NDK差分輸出晶體振蕩器適配AI數(shù)據(jù)中心嚴(yán)苛需求
NDK差分輸出晶體振蕩器以超低時(shí)序抖動(dòng),強(qiáng)抗干擾能力,高頻高精度,小型化低功耗的核心優(yōu)勢(shì),完美適配AI數(shù)據(jù)中心的嚴(yán)苛需求,在服務(wù)器集群,GPU加速卡,高速光模塊,存儲(chǔ)設(shè)備等關(guān)鍵場(chǎng)景中發(fā)揮著不可替代的作用,為全球AI數(shù)據(jù)中心建設(shè)提供了高品質(zhì)的時(shí)頻解決方案,贏得了全球客戶的廣泛認(rèn)可與信賴.未來(lái),隨著AI技術(shù)的持續(xù)演進(jìn),大模型,深度學(xué)習(xí),自動(dòng)駕駛,元宇宙等場(chǎng)景對(duì)算力的需求將持續(xù)提升,對(duì)時(shí)頻同步精度的要求也將不斷提高.NDK將繼續(xù)堅(jiān)守創(chuàng)新初心,深耕頻率控制領(lǐng)域,持續(xù)深化差分輸出晶體振蕩器的技術(shù)迭代,推出更多適配AI數(shù)據(jù)中心新興場(chǎng)景的高品質(zhì)產(chǎn)品,優(yōu)化產(chǎn)品性能與服務(wù),以核心技術(shù)賦能AI數(shù)據(jù)中心升級(jí),為全球AI算力的高質(zhì)量發(fā)展提供堅(jiān)實(shí)的時(shí)頻支撐,護(hù)航AI算力新時(shí)代的到來(lái),助力數(shù)字經(jīng)濟(jì)實(shí)現(xiàn)更高水平的發(fā)展.
Raltron優(yōu)化升級(jí)醫(yī)療設(shè)備制造商支持
作為全球頻率控制領(lǐng)域的領(lǐng)軍企業(yè)之一,Raltron自成立以來(lái),始終將品質(zhì)放在首位,堅(jiān)守"品質(zhì)為先,誠(chéng)信為本,創(chuàng)新驅(qū)動(dòng)"的理念,建立了覆蓋產(chǎn)品設(shè)計(jì),研發(fā),生產(chǎn),測(cè)試,交付全流程的嚴(yán)苛品質(zhì)管控體系,確保每一款醫(yī)療級(jí)產(chǎn)品都符合行業(yè)標(biāo)準(zhǔn)與客戶需求,為醫(yī)療設(shè)備的安全運(yùn)行提供堅(jiān)實(shí)保障.Raltron擁有先進(jìn)的生產(chǎn)基地與專業(yè)的測(cè)試實(shí)驗(yàn)室,配備國(guó)際領(lǐng)先的測(cè)試設(shè)備,包括頻率穩(wěn)定性測(cè)試儀,相位噪聲測(cè)試儀,溫度循環(huán)測(cè)試箱,電磁干擾測(cè)試儀等,對(duì)產(chǎn)品的頻率穩(wěn)定性,溫度適應(yīng)性,抗干擾能力,可靠性,壽命等核心參數(shù)進(jìn)行精準(zhǔn)檢測(cè),每一款產(chǎn)品都經(jīng)過(guò)上千次的環(huán)境模擬測(cè)試與性能校準(zhǔn),杜絕任何質(zhì)量隱患,確保產(chǎn)品能夠在復(fù)雜的醫(yī)療環(huán)境中長(zhǎng)期穩(wěn)定運(yùn)行.
Transko新品發(fā)布TSVD系列超低相位噪聲VCXO
壓控晶體振蕩器(VCXO)作為一類通過(guò)外部控制電壓實(shí)現(xiàn)輸出頻率動(dòng)態(tài)微調(diào)的有源晶體振蕩器件,核心功能是在基準(zhǔn)頻率基礎(chǔ)上,根據(jù)輸入電壓變化實(shí)時(shí)調(diào)整振蕩頻率,滿足電子系統(tǒng)對(duì)時(shí)鐘同步的動(dòng)態(tài)校準(zhǔn)需求,已成為高端電子系統(tǒng)中不可或缺的核心組件,而"超低相位噪聲+高精度壓控"已成為高端VCXO產(chǎn)品的核心競(jìng)爭(zhēng)壁壘與技術(shù)制高點(diǎn).當(dāng)前,全球高端VCXO市場(chǎng)正朝著更低相位噪聲,更寬壓控范圍,更高線性度,小型化,低功耗的方向加速發(fā)展,國(guó)內(nèi)高端市場(chǎng)仍被國(guó)際巨頭主導(dǎo),核心技術(shù)與產(chǎn)品供應(yīng)受限于人,本土廠商正積極加大研發(fā)投入,攻克低噪聲與精準(zhǔn)壓控核心技術(shù),全力推動(dòng)高端VCXO的國(guó)產(chǎn)化替代進(jìn)程.在此背景下,深耕時(shí)頻器件領(lǐng)域數(shù)十年的Transko,依托深厚的技術(shù)積淀,全產(chǎn)業(yè)鏈布局優(yōu)勢(shì)與強(qiáng)大的創(chuàng)新能力,正式宣布推出TSVD系列超低相位噪聲VCXO,以突破性的低噪聲技術(shù)與精準(zhǔn)壓控技術(shù),打造行業(yè)高端VCXO標(biāo)桿,進(jìn)一步完善Transko全系列時(shí)頻產(chǎn)品矩陣,填補(bǔ)國(guó)內(nèi)超低相位噪聲VCXO的市場(chǎng)空白,助力本土高端電子產(chǎn)業(yè)實(shí)現(xiàn)自主可控升級(jí),彰顯民族企業(yè)的產(chǎn)業(yè)擔(dān)當(dāng).
TPS-1236系列超低相位噪聲振蕩器
TPS-1236系列超低相位噪聲振蕩器的推出,不僅是Transko在超低相位噪聲振蕩器領(lǐng)域的重大技術(shù)突破,更是本土?xí)r頻器件產(chǎn)業(yè)向高端化升級(jí)的重要標(biāo)志,彰顯了Transko在時(shí)頻器件領(lǐng)域的核心競(jìng)爭(zhēng)力與創(chuàng)新實(shí)力,也為全球高端電子設(shè)備的發(fā)展注入了新的活力.相較于國(guó)際同類產(chǎn)品,TPS-1236系列以"超低相位噪聲"為核心,兼顧寬頻覆蓋,低功耗,高可靠性,強(qiáng)兼容性與寬溫適配,實(shí)現(xiàn)了"性能對(duì)標(biāo)國(guó)際,性價(jià)比優(yōu)于國(guó)際"的產(chǎn)品優(yōu)勢(shì),既填補(bǔ)了業(yè)內(nèi)高端超低相位噪聲振蕩器的市場(chǎng)空白,打破了國(guó)外企業(yè)在高端超低相位噪聲振蕩器領(lǐng)域的技術(shù)壟斷,又為各行業(yè)高端電子設(shè)備的技術(shù)升級(jí)提供了更優(yōu)的時(shí)頻解決方案,推動(dòng)超低相位噪聲振蕩器向更低噪聲,更高基頻,更小型,更智能的方向發(fā)展,引領(lǐng)行業(yè)進(jìn)入高端超低相位噪聲振蕩器國(guó)產(chǎn)化的全新發(fā)展階段.
Skyworks與華碩強(qiáng)強(qiáng)聯(lián)合推出全球首款超快速Wi-Fi6E擴(kuò)展頻段路由器
當(dāng)前,Wi-Fi6E技術(shù)正進(jìn)入規(guī)?;l(fā)展的關(guān)鍵階段,6~7GHz擴(kuò)展頻段的啟用為無(wú)線網(wǎng)絡(luò)升級(jí)提供了廣闊空間,而隨著AIoT,AR/VR,云計(jì)算等技術(shù)的持續(xù)演進(jìn),用戶對(duì)無(wú)線網(wǎng)絡(luò)的性能要求將進(jìn)一步提升.Skyworks與華碩將繼續(xù)堅(jiān)守創(chuàng)新初心,深化戰(zhàn)略合作,聚焦Wi-Fi技術(shù)的迭代升級(jí),推動(dòng)無(wú)線網(wǎng)絡(luò)向更快,更穩(wěn),更智能,更普惠的方向發(fā)展.Skyworks將持續(xù)加大Wi-Fi射頻技術(shù)的研發(fā)投入,聚焦Wi-Fi6E及下一代Wi-Fi技術(shù)的創(chuàng)新,進(jìn)一步優(yōu)化前端模塊的性能,提升集成度,降低功耗,擴(kuò)大頻段覆蓋,推出更多適配不同場(chǎng)景的高性能射頻解決方案,為終端設(shè)備廠商提供更加強(qiáng)大的技術(shù)支撐.同時(shí),將持續(xù)深化與產(chǎn)業(yè)鏈伙伴的合作,推動(dòng)射頻技術(shù)與終端設(shè)備的深度融合,加速Wi-Fi6E技術(shù)的規(guī)模化普及,助力數(shù)字基礎(chǔ)設(shè)施的升級(jí).華碩將繼續(xù)發(fā)揮其在網(wǎng)絡(luò)設(shè)備領(lǐng)域的優(yōu)勢(shì),依托AiMesh等核心技術(shù),持續(xù)優(yōu)化Wi-Fi6E路由器的性能與用戶體驗(yàn),推出更多適配家庭,辦公,電競(jìng)等不同場(chǎng)景的產(chǎn)品,滿足用戶的多元化需求.同時(shí),將進(jìn)一步加強(qiáng)與Skyworks等核心合作伙伴的技術(shù)協(xié)同,探索Wi-Fi技術(shù)與AI,邊緣計(jì)算等技術(shù)的融合創(chuàng)新,打造更智能,更高效的網(wǎng)絡(luò)解決方案,引領(lǐng)數(shù)字生活方式的變革.
ECS計(jì)時(shí)解決方案ECS-.327-7-12-TR對(duì)包括可再生能源市場(chǎng)至關(guān)重要
為什么ECS INC .的計(jì)時(shí)解決方案對(duì)包括可再生能源在內(nèi)的能源市場(chǎng)至關(guān)重要?
高品質(zhì)石英晶體振蕩器等是這一關(guān)鍵行業(yè)背后的火花
能源市場(chǎng)的主要目標(biāo)是確保在需要的時(shí)間和地點(diǎn)都能獲得電力。這是一項(xiàng)艱巨的任務(wù),許多獨(dú)立的流程共同組成了一個(gè)高效可靠的系統(tǒng)。WINTRON石英晶體WCU-302A30-20-EXT-012.000MHz生產(chǎn)工藝
|
<trans oldtip="Wintron's " newtip="溫特隆的">Wintron溫特隆的石英trans><trans oldtip=" crystal oscillator products go through the entire production process with the advanced and innovative manufacturing and testing equipment." newtip="晶體振蕩器產(chǎn)品通過(guò)先進(jìn)和創(chuàng)新的制造和測(cè)試設(shè)備完成整個(gè)生產(chǎn)過(guò)程。" style="font-size: 16px;">晶體振蕩器產(chǎn)品通過(guò)先進(jìn)和創(chuàng)新的制造和測(cè)試設(shè)備完成整個(gè)生產(chǎn)過(guò)程。 trans>
<trans oldtip=" crystal oscillator products go through the entire production process with the advanced and innovative manufacturing and testing equipment." newtip="晶體振蕩器產(chǎn)品通過(guò)先進(jìn)和創(chuàng)新的制造和測(cè)試設(shè)備完成整個(gè)生產(chǎn)過(guò)程。" style="font-size: 16px;">Wintron在頻率控制器件(晶體單元、SPXO、VCXO、VCSO、TCXO、OCXO、VCO、MCF、DRO)、微波元件(低噪聲放大器、高功率放大器、MMIC、PLL、頻率合成器)和定制技術(shù)解決方案的設(shè)計(jì)、制造和營(yíng)銷方面處于世界領(lǐng)先地位。 |
tr>
TrustFLEX設(shè)備和信任平臺(tái)設(shè)計(jì)套件工具將在廣泛的應(yīng)用中簡(jiǎn)化信任根從概念到生產(chǎn)的實(shí)現(xiàn)
隨著技術(shù)和網(wǎng)絡(luò)安全標(biāo)準(zhǔn)的不斷發(fā)展,Microchip技術(shù)MCHP納斯達(dá)克股票代碼有助于使嵌入式安全解決方案通過(guò)其CEC1736 TrustFLEX器件。CEC1736 Trust Shield系列是一款基于微控制器的平臺(tái)信任根解決方案,可為數(shù)據(jù)中心、電信、網(wǎng)絡(luò)、嵌入式計(jì)算和工業(yè)應(yīng)用提供網(wǎng)絡(luò)彈性?,F(xiàn)在,作為TrustFLEX平臺(tái)的一部分,這些設(shè)備部分配置了Microchip簽名的Soteria-G3固件,以減少集成平臺(tái)信任根所需的開發(fā)時(shí)間。這些設(shè)備還有助于快速跟蹤所需加密資產(chǎn)和簽名固件映像的配置,從而簡(jiǎn)化國(guó)家標(biāo)準(zhǔn)與技術(shù)研究所(NIST)和開放計(jì)算項(xiàng)目(OCP)標(biāo)準(zhǔn)所要求的安全制造流程。Oscilent晶振產(chǎn)品應(yīng)用領(lǐng)域278-52.0M-0925GW-TR
Oscilent品牌是一家產(chǎn)品線廣泛的頻率控制產(chǎn)品提供商,提供射頻濾波設(shè)計(jì)和生產(chǎn)專業(yè)知識(shí),專注于基于聲表面波(SAW)諧振器的濾波器。Oscilent晶振廠家由Abracon提供支持,該公司提供最新的技術(shù)設(shè)計(jì)支持和全球供應(yīng)鏈靈活性,以解決客戶當(dāng)今面臨的獨(dú)特挑戰(zhàn)。
Oscilent晶體型號(hào)參考推薦223-000312-20-TR
Oscilent品牌是一家產(chǎn)品線廣泛的頻率控制產(chǎn)品提供商,提供射頻濾波設(shè)計(jì)和生產(chǎn)專業(yè)知識(shí),專注于基于聲表面波(SAW)諧振器的濾波器。Oscilent奧斯康利晶振公司由Abracon提供支持,該公司提供最新的技術(shù)設(shè)計(jì)支持和全球供應(yīng)鏈靈活性,以解決客戶當(dāng)今面臨的獨(dú)特挑戰(zhàn)。
MtronPTI恒溫晶振XO9095-004低相位噪聲和低g靈敏度
MtronPTI晶振今天推出了XO9095,這是一款OCXO,集成了低噪聲乘法器、濾波器和低噪聲分立放大器,可產(chǎn)生500MHz至2GHz的高頻、低相位噪聲正弦波輸出。XO9095采用了內(nèi)部制造的精密SC切晶體,這種晶體驅(qū)動(dòng)了OCXO的緊密穩(wěn)定性、低g靈敏度和低相位噪聲性能。
XO9095工作在GHz頻率下,設(shè)計(jì)人員無(wú)需乘以較低的OCXO頻率,從而消除了可能引入噪聲的額外電路、成本、PCB空間和RF路徑。這種業(yè)界領(lǐng)先的緊密穩(wěn)定性、低g靈敏度和低相位噪聲性能被設(shè)計(jì)成一個(gè)標(biāo)準(zhǔn)的1平方英寸封裝。這種封裝比競(jìng)爭(zhēng)產(chǎn)品小約45%,是市場(chǎng)上最小的高頻OCXO晶體振蕩器,以最輕的重量占用更少的電路板空間。
XO9095是雷達(dá)、電子戰(zhàn)、衛(wèi)星通信和測(cè)試設(shè)備應(yīng)用的理想頻率基準(zhǔn)源。MtronPTI提供各種精密晶體諧振器、振蕩器、濾波器和集成微波組件解決方案。MtronPTI是ISO 9001:2015和AS9100 Rev. D認(rèn)證組織。
MTI-milliren為堅(jiān)固的軍用或商用頻率參考GPSDO振蕩器
全球定位系統(tǒng)紀(jì)律振蕩器(GPSDO)可作為堅(jiān)固的軍用或商用頻率參考,允許銫原子鐘或Stratum I性能在固定或移動(dòng)平臺(tái)上運(yùn)行。GPSDO石英晶體振蕩器產(chǎn)生高度精確的頻率(24小時(shí)后通常< 5E-12 ),相位噪聲性能非常低。采用16-34V電源時(shí),整個(gè)組件在+25°C時(shí)的功耗低于8W。提供每秒一個(gè)脈沖(1PPS)的輸出。此外,GPSDO提供了不到9分鐘的快速預(yù)熱。+25°c時(shí)的精度為1E-08,接收機(jī)提供低至-160dBm的GPS信號(hào)跟蹤。RS-232可用于通信、控制和狀態(tài)報(bào)告,以及TTL內(nèi)置測(cè)試(BIT)狀態(tài)輸出。有多種選項(xiàng)可用于提供定制的高性能下一代GPS訓(xùn)練頻率參考。
Renesas采用RA8D1 MCUs的圖形和視覺(jué)AI應(yīng)用
<trans oldtip="In my previous blog, " newtip="在我之前的博客中," style="box-sizing: border-box; outline-color: inherit; outline-offset: 2px;">視覺(jué)人工智能(即計(jì)算機(jī)視覺(jué))是指允許系統(tǒng)感知和解釋視覺(jué)數(shù)據(jù)并根據(jù)對(duì)這些數(shù)據(jù)的分析做出自主決策的技術(shù)。這些系統(tǒng)通常具有用于獲取視覺(jué)數(shù)據(jù)的相機(jī)傳感器,該視覺(jué)數(shù)據(jù)作為輸入激活提供給在大型圖像數(shù)據(jù)集上訓(xùn)練的神經(jīng)網(wǎng)絡(luò)以識(shí)別圖像。視覺(jué)人工智能可以支持許多應(yīng)用,例如用于故障檢測(cè)的工業(yè)機(jī)器視覺(jué)、自動(dòng)駕駛汽車、安全應(yīng)用中的人臉識(shí)別、圖像分類、對(duì)象檢測(cè)和跟蹤、醫(yī)療成像、交通管理、路況監(jiān)控、客戶熱圖生成等。trans>
如何增加電機(jī)控制系統(tǒng)的價(jià)值
<trans oldtip="To help designers meet these requirements, Renesas developed the RA8T1 group of MCUs for motor control in the 32-bit RA microcontroller family. RA8T1 devices implement the latest high-end Cortex" newtip="為了幫助設(shè)計(jì)人員滿足這些要求,瑞薩開發(fā)了32位RA微控制器系列中用于電機(jī)控制的RA8T1系列MCU。RA8T1設(shè)備采用最新的高端皮質(zhì)" style="box-sizing: border-box; outline-color: inherit; outline-offset: 2px;">如今,電機(jī)控制系統(tǒng)要求更高的性能、更低的功耗和更多的功能,包括智能操作。除了精確的電機(jī)控制之外,系統(tǒng)還需要能夠同時(shí)執(zhí)行應(yīng)用程序、與其它設(shè)備通信以及檢測(cè)運(yùn)行異常。此外,這些系統(tǒng)需要安全設(shè)計(jì)以及網(wǎng)絡(luò)連接的安全措施。trans>
<trans oldtip="To help designers meet these requirements, Renesas developed the RA8T1 group of MCUs for motor control in the 32-bit RA microcontroller family. RA8T1 devices implement the latest high-end Cortex" newtip="為了幫助設(shè)計(jì)人員滿足這些要求,瑞薩開發(fā)了32位RA微控制器系列中用于電機(jī)控制的RA8T1系列MCU。RA8T1設(shè)備采用最新的高端皮質(zhì)" style="box-sizing: border-box; outline-color: inherit; outline-offset: 2px;">為了幫助設(shè)計(jì)人員滿足這些要求,瑞薩開發(fā)了32位RA微控制器系列中用于電機(jī)控制的RA8T1系列MCU。石英晶振RA8T1設(shè)備采用最新的高端皮質(zhì)trans>?<trans oldtip="-M class core which enables precise motor control and contributes to higher overall system power efficiency. In addition to the performance, RA8T1 also delivers abundant optimized features, enabling designers to adopt additional functions to their system. Expanding the optimized motor control product line to a lineup addressing low-end to high-end motor system demands allows design scalability as well as leverages common development tools and software." newtip="-M級(jí)內(nèi)核,支持精確的電機(jī)控制,有助于提高整體系統(tǒng)能效。除了性能之外,RA8T1還提供了豐富的優(yōu)化功能,使設(shè)計(jì)人員能夠在其系統(tǒng)中采用額外的功能。將優(yōu)化的電機(jī)控制產(chǎn)品線擴(kuò)展到滿足低端到高端電機(jī)系統(tǒng)需求的產(chǎn)品陣容,不僅可以實(shí)現(xiàn)設(shè)計(jì)可擴(kuò)展性,還可以利用通用開發(fā)工具和軟件。" style="box-sizing: border-box; outline-color: inherit; outline-offset: 2px;">-M級(jí)內(nèi)核,支持精確的電機(jī)控制,有助于提高整體系統(tǒng)能效。除了性能之外,RA8T1還提供了豐富的優(yōu)化功能,使設(shè)計(jì)人員能夠在其系統(tǒng)中采用額外的功能。將優(yōu)化的電機(jī)控制產(chǎn)品線擴(kuò)展到滿足低端到高端電機(jī)系統(tǒng)需求的產(chǎn)品陣容,不僅可以實(shí)現(xiàn)設(shè)計(jì)可擴(kuò)展性,還可以利用通用開發(fā)工具和軟件。trans>
Pletronics低功耗32.768KHz振蕩器
在便攜式、可穿戴和電池驅(qū)動(dòng)設(shè)備不斷發(fā)展的格局中,對(duì)緊湊、節(jié)能組件的需求從未如此之大。Pletronics SM22K/SM33K/SM44K 32.768KHz CMOS石英晶體振蕩器系列以其多樣化的封裝尺寸陣容、出色的頻率穩(wěn)定性和顯著的低功耗而成為精度的燈塔。本文探討了該系列的關(guān)鍵特性,強(qiáng)調(diào)了它作為現(xiàn)代電子應(yīng)用的高級(jí)實(shí)時(shí)時(shí)鐘參考的作用。
在現(xiàn)代電子的快節(jié)奏世界中,對(duì)提高精度和性能的需求至關(guān)重要。溫補(bǔ)晶體振蕩器(TCXOs)已成為技術(shù)進(jìn)步的燈塔,滿足了對(duì)更小封裝、在不同溫度下無(wú)可挑剔的頻率穩(wěn)定性和卓越相位噪聲性能的需求。Pletronics的TCXO設(shè)備深入了解TCXO的重要性,以及它們?nèi)绾螐氐赘淖円蕾嚲_定時(shí)和信號(hào)同步的行業(yè)。
1,更小的包裝:重新定義小型化(2.0x1.6mm、2.5x2.0mm、3.2x2.5mm)石英晶振
小型化的競(jìng)賽刺激了各行業(yè)制造更小、更時(shí)尚的設(shè)備。TCXO通過(guò)在不影響性能的情況下提供緊湊的解決方案,在這一趨勢(shì)中發(fā)揮著關(guān)鍵作用。憑借其固有的高效設(shè)計(jì),TCXO被設(shè)計(jì)成能夠緊密地適應(yīng)現(xiàn)代小工具日益受限的空間。無(wú)論是智能家居產(chǎn)品還是無(wú)線通信設(shè)備,TCXO有源晶振都有助于縮小設(shè)備的整體尺寸,確保技術(shù)對(duì)用戶來(lái)說(shuō)既不引人注目又方便。
Pletronics新TCXO系列
TCXO的崛起標(biāo)志著精密電子領(lǐng)域的一個(gè)重要里程碑。憑借其提供更小封裝的能力、在寬溫度范圍內(nèi)的卓越頻率穩(wěn)定性和卓越的相位噪聲性能,TCXO貼片晶振正在重新定義準(zhǔn)確性和可靠性的標(biāo)準(zhǔn)。隨著行業(yè)不斷突破創(chuàng)新的邊界,TCXO證明了人類的獨(dú)創(chuàng)性,提升了依賴完美時(shí)序和信號(hào)同步的設(shè)備和系統(tǒng)的潛力。
KDS關(guān)于振蕩電路的討論方法
石英振子是無(wú)源部件,無(wú)源晶振,因此會(huì)受到電源電壓、環(huán)境溫度、電路結(jié)構(gòu)、電路常數(shù)、基板的布線圖案等的影響。 大致分為正常動(dòng)作和異常動(dòng)作兩種。 因此,設(shè)計(jì)振蕩電路時(shí),前提條件是使石英振子穩(wěn)定且可靠地振蕩。 確認(rèn)后,將討論頻率精度、頻率的可變量、調(diào)制度、振蕩開始時(shí)間、振蕩波形等以下項(xiàng)目。
彼得曼32.768K有源晶振的優(yōu)勢(shì),Time requirements in modern metering applications have massively increased in the last few years. The usual requirement in modern metering applications is a time offset of 1 hour after 7 years. It should also be possible for the operating temperature range of the application to comply with this value. 1 hour max. after 7 years corresponds to a frequency tolerance of ±16 ppm absolute at 32,768 kHz. It is no longer possible for conventional 32,768 kHz oscillating crystals to meet these requirements.
On the one hand, this is because 32,768 kHz are only available with a frequency tolerance of ±10ppm at +25°C, on the other hand, the temperature stability over a temperature range of -40/+85°C is more then -180 ppm. Moreover, ageing of approx. ±30 ppm after 10 years must be taken into account when calculating accuracy. In the worst case, a 32,768 kHz crystal has a maximum frequency stability of +40/-220 ppm (including adjustment at +25°C, temperature stability and ageing after 10 years). External circuit capacitance must be able to compensate any systematic frequency offset caused by the internal capacitance of the oscillator stage of the IC to be synchronised and by stray capacitance. The selection of a layout without external circuit capacitance for the 32,768 crystal involves a great risk because the accuracy of the 32,768 crystal can neither be corrected nor adjusted to suddenly changing PCB conditions during series production. Initially, the intersection angle for the 32,768 crystal was designed for optimal accuracy in wristwatches, and not for most of the applications for which it is used nowadays.
In order to meet the highly accurate time requirements, we as a clocking specialist offer the series ULPPO ultra low power 32,768 kHz oscillator. This oscillator can be operated with each voltage within a VDD range of 1.5 to 3.63 VDC. The specified current consumption is 0.99 µA. The temperature stability of ULPPOs is ±5 ppm over a temperature range of -40/+85°C. Frequency stability (delivery accuracy plus temperature stability) is ±10 ppm, and ageing after 20 years is ±2 ppm. Thus the maximum overall stability of ULPPOs is ±12 ppm including the ageing after 10 years. These are industry best parameters.
No external circuit capacitance is required for the circuiting of the ultra small housing (housing area: 1.2 mm2). The input stage of the IC installed in the ULPPO independently filters the supply voltage. Compared to crystals, ULPPOs save a lot of space on the printed circuit board so that the packing density can be increased, and smaller printed circuit boards can be designed. The adjustment of the amplitude further reduces the power consumption of the ULPPO.
For space calculations, both external circuit capacitances for a crystal on the printed circuit board must also be taken into account. With its two external circuit capacitances, even the smallest 32,768 kHz crystal requires more space on the PCB than ULPPOs do.
Moreover, very small 32,768 kHz crystals have very high resistances which usually cannot be safely overcome by the oscillator stages to be synchronised because the oscillator stages of the ICs or RTCs to be synchronised have very high tolerances as well. Therefore, sudden response time problems in the field might occur which can be ruled out with ULPPOs. Thus, the safe operation of the application is possible with ULPPOs under all circumstances.
Oscillator stages consume a lot of energy to keep a 32,768 crystal oscillating. Usually, the input stage of the MCU can be directly circuited with the LVCMOS signal of the ULPPO (usually Xin). Thus the input stage of the MCU can be deactivated (bypass function) so that the energy saved can be used for the calculation of the system power consumption of the meter. Moreover, ULPPOs are able to synchronise several ICs at a time. Due to the very high accuracy of the ULPPO, less time synchronisations are required, which also saves system power.
Of course, ULPPOs can be used in any applications which require miniaturised ultra low power 32,768 kHz oscillators such as smartphones, tablets, GPS, fitness watches, health and wellness applications, wireless keyboards, timing systems, timing applications, wearables, IoT, home automation, etc. Due to the high degree of accuracy of 32,768 kHz oscillators, the standby time or even the hypernation time in hypernation technology applications can be significantly increased so that a high amount of system power can be saved due to the significantly lower battery-intensive synchronisation cycles. Thus the 32,768 kHz oscillator is the better choice compared to 32,768 kHz crystals. Ultra low power 32,768 kHz oscillators are available with diverse accuracy variations – see also the ULPO-RB1 and -RB2 series.
不斷精進(jìn)自我的優(yōu)質(zhì)制造商彼得曼公司,致力于開發(fā)大量高質(zhì)量的產(chǎn)品,隨著近幾年來(lái),現(xiàn)代計(jì)量應(yīng)用的時(shí)間要求大幅提高。現(xiàn)代計(jì)量應(yīng)用的通常要求是7年后時(shí)間偏移1小時(shí)。應(yīng)用的工作溫度范圍也應(yīng)符合該值。最多1小時(shí)。7年后對(duì)應(yīng)于32,768kHz下16ppm絕對(duì)值的頻率容差。傳統(tǒng)的32,768 kHz振蕩晶體不再可能滿足這些要求。彼得曼32.768K有源晶振的優(yōu)勢(shì).
一方面,這是因?yàn)?2,768kHz僅在+25°C時(shí)具有10ppm的頻率容差,另一方面,在-40/+85°C溫度范圍內(nèi)的溫度穩(wěn)定性高于-180ppm。此外,老化約。計(jì)算精度時(shí),必須考慮10年后的30ppm。最差情況下,32.768K有源晶振的最大頻率穩(wěn)定性為+40/-220 ppm(包括+25°C時(shí)的調(diào)整、溫度穩(wěn)定性和10年后的老化)。外部電路電容必須能夠補(bǔ)償由要同步的ic振蕩器級(jí)的內(nèi)部電容和雜散電容引起的任何系統(tǒng)頻率偏移。為32,768晶振選擇無(wú)外部電路電容的布局包含很大的風(fēng)險(xiǎn),因?yàn)樵谂可a(chǎn)期間,32,768晶振的精度既不能校正也不能調(diào)整以適應(yīng)突然變化的PCB條件。最初,32,768英寸晶體的交叉角度是為手表的最佳精度而設(shè)計(jì)的,而不是為如今使用它的大多數(shù)應(yīng)用而設(shè)計(jì)的。