Wi2Wi產(chǎn)品應(yīng)用程序LV5-T-100.00M-M-B-D-3-R-X

Wi2Wi是一家專業(yè)的電子元件供應(yīng)商，在頻率控制設(shè)備和無線技術(shù)的各個方面都擁有專業(yè)知識。Wi2Wi的Precision Devices品牌產(chǎn)品已在包括航空電子、航空航天、工業(yè)設(shè)備、政府和美國軍事應(yīng)用在內(nèi)的眾多關(guān)鍵市場中贏得了一席之地。具體來說，我們的頻率控制產(chǎn)品石英晶振以及射頻和微波濾波器都是同類最佳、質(zhì)量最高的產(chǎn)品。
在Wi2Wi威爾威晶振，我們?yōu)樽约簩蛻舻年P(guān)注和響應(yīng)感到自豪。我們知道，最好的長期戰(zhàn)略是每天堅持不懈地為我們的客戶（無論大小）提供服務(wù)，以便為他們提供卓越的體驗。
Wi2Wi的設(shè)計中心以及我們最先進(jìn)的制造和運(yùn)營設(shè)施位于美國威斯康星州米德爾頓工業(yè)區(qū)的中心。Wi2Wi可以利用我們的內(nèi)部設(shè)計和制造專業(yè)知識，并利用我們與眾多行業(yè)領(lǐng)先的硅和無線技術(shù)供應(yīng)商的一級全球合作伙伴關(guān)系來提供特定的解決方案。

MTI-milliren為堅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性能在固定或移動平臺上運(yùn)行。GPSDO石英晶體振蕩器產(chǎn)生高度精確的頻率(24小時后通常< 5E-12 ),相位噪聲性能非常低。采用16-34V電源時，整個組件在+25°C時的功耗低于8W。提供每秒一個脈沖(1PPS)的輸出。此外，GPSDO提供了不到9分鐘的快速預(yù)熱。+25°c時的精度為1E-08，接收機(jī)提供低至-160dBm的GPS信號跟蹤。RS-232可用于通信、控制和狀態(tài)報告，以及TTL內(nèi)置測試(BIT)狀態(tài)輸出。有多種選項可用于提供定制的高性能下一代GPS訓(xùn)練頻率參考。

KVG石英晶體的結(jié)晶形成XMP-7135-5E-18pF-20MHz

石英作為礦物是所有類型石英諧振器,石英濾波器和石英振蕩器的原料。大部分地殼由天然石英構(gòu)成,其純粹形式也稱為深石英或α石英。石英是由硅和氧原子構(gòu)成的完美對稱的理想晶格。這種晶格使石英具有重要的特性,即當(dāng)對晶體施加機(jī)械壓力時,可以在石英晶振晶體的兩端測量電壓。同樣,當(dāng)從外部施加電壓時,晶體會變形。這種行為使其成為在電路中以振動夸克的形式使用的理想原材料。以前在石英的生產(chǎn)中使用礦物開采石英,山水晶,現(xiàn)在幾乎完全使用人工制造的石英,其純度極高。例如,在每只腕表(石英表)中,一小塊石英材料確保秒針每秒可靠且始終向前滑動一次。

QANTEK石英晶體產(chǎn)品數(shù)據(jù)手冊

QANTEK Technology Corporation成立于2005年，現(xiàn)已成為市場上最受認(rèn)可、經(jīng)驗最豐富的時間和頻率管理器件制造商之一。QANTEK康泰克晶振公司提供的產(chǎn)品范圍從簡單的音叉晶體到高穩(wěn)定性和定制的恒溫晶體振蕩器。

Renesas采用RA8D1 MCUs的圖形和視覺AI應(yīng)用

vetica,="" arial,="" "lucida="" grande",="" "nimbus="" sans="" l",="" sans-serif;="" font-size:="" 16px;="" "="" style="margin-top: 0px; margin-bottom: 1.5rem; box-sizing: border-box; outline-color: inherit; outline-offset: 2px; color: rgb(56, 56, 56);">視覺人工智能（即計算機(jī)視覺）是指允許系統(tǒng)感知和解釋視覺數(shù)據(jù)并根據(jù)對這些數(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數(shù)據(jù)的相機(jī)傳感器，該視覺數(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)以識別圖像。視覺人工智能可以支持許多應(yīng)用，例如用于故障檢測的工業(yè)機(jī)器視覺、自動駕駛汽車、安全應(yīng)用中的人臉識別、圖像分類、對象檢測和跟蹤、醫(yī)療成像、交通管理、路況監(jiān)控、客戶熱圖生成等。

如何增加電機(jī)控制系統(tǒng)的價值

vetica,="" arial,="" "lucida="" grande",="" "nimbus="" sans="" l",="" sans-serif;="" font-size:="" 16px;="" "="" style="margin-top: 0px; margin-bottom: 1.5rem; box-sizing: border-box; outline-color: inherit; outline-offset: 2px; color: rgb(56, 56, 56);">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)還需要能夠同時執(zhí)行應(yīng)用程序、與其它設(shè)備通信以及檢測運(yùn)行異常。此外，這些系統(tǒng)需要安全設(shè)計以及網(wǎng)絡(luò)連接的安全措施。

vetica,="" arial,="" "lucida="" grande",="" "nimbus="" sans="" l",="" sans-serif;="" font-size:="" 16px;="" "="" style="margin-top: 0px; margin-bottom: 1.5rem; box-sizing: border-box; outline-color: inherit; outline-offset: 2px; color: rgb(56, 56, 56);">為了幫助設(shè)計人員滿足這些要求，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)?-M級內(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，不僅可以實現(xiàn)設(shè)計可擴(kuò)展性，還可以利用通用開發(fā)工具和軟件。

Macrobizes擁有大量標(biāo)準(zhǔn)頻率和規(guī)格的成品庫存，可立即發(fā)貨。雙重“現(xiàn)貨或定制”系統(tǒng)確保了高水平的客戶服務(wù)。Macrobizes鼓勵與客戶建立設(shè)計和開發(fā)合作伙伴關(guān)系。對于新技術(shù)應(yīng)用和主要產(chǎn)品更新，我們的客戶擁有經(jīng)驗豐富的設(shè)計師和生產(chǎn)工程師的優(yōu)勢和安全性，他們了解頻率控制產(chǎn)品范圍并為他們提供幫助。我們的客戶可以隨時獲得設(shè)計、生產(chǎn)和物流運(yùn)作方面的幫助。Macrobizes是石英晶體、石英晶體振蕩器、TCXO、VCXO、OCXO制造商和供應(yīng)商。我們?yōu)槟母哔|(zhì)量產(chǎn)品提供可靠的石英晶體。

Silicon EFM32TG210 MCU是便攜式心臟監(jiān)護(hù)儀

Gabriel還指出，貼片晶振，EFM32TG210的性能和功耗模式允許他們按照規(guī)格設(shè)計和構(gòu)建CAM補(bǔ)丁，并最終實現(xiàn)預(yù)期的結(jié)果。他堅持認(rèn)為，在設(shè)計設(shè)備時，擁有滿足性能預(yù)期的MCU是保持項目進(jìn)度和預(yù)算的關(guān)鍵。“EFM32架構(gòu)非常出色，僅用48 mAh CR1225電池就可以進(jìn)行長達(dá)14天的完整披露記錄。被捕獲的信號可以低至150uVpp，即使在這個范圍內(nèi)，模擬波形的細(xì)節(jié)也能保持清晰。EFM32架構(gòu)包含高性能ADC，可以捕捉這些細(xì)節(jié)，同時保持電磁安靜的輻射特性，使小細(xì)節(jié)不會受到干擾的阻礙。集成過采樣和異常穩(wěn)定且可配置的ADC特性是救命稻草。EFM32架構(gòu)在當(dāng)時絕對是革命性的，大多數(shù)芯片供應(yīng)商仍在追趕。"

我們的高能效EFM32微型Gecko微控制器（MCU）具有低功耗優(yōu)勢，例如掉電、滿RAM和寄存器保留。我們的微型Gecko 32位MCU采用4x4 mm小尺寸封裝石英晶振，運(yùn)行模式下的功耗低至150 μA/MHz，實時計數(shù)器運(yùn)行時的功耗低至1 μA，非常適合能源敏感型應(yīng)用。Tiny Gecko MCU系列采用行業(yè)標(biāo)準(zhǔn)的ARM Cortex -M3處理器，提供自主、高能效外設(shè)以及高度的晶體和模擬集成。

RZ/V2H微處理器兼具視覺人工智能和實時控制功能，集成了瑞薩新一代專有人工智能加速器——AI3動態(tài)可重構(gòu)處理器（DRP），提供10 TOPS/W的功效。該公司表示，這是“與以前的型號相比令人印象深刻的10倍改進(jìn)。”

微晶RV-3032-C7使RTC更小更高效

微晶銀斯沃琪集團(tuán)旗下的一家公司與CSEM合作開發(fā)了一款特別小且節(jié)能的RTC，名為RV-3032-C7。RV-3032-C7背后的驅(qū)動力是微型晶體與智能電子設(shè)備的結(jié)合，功耗極低。

彼得曼32.768K有源晶振的優(yōu)勢，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，現(xiàn)代計量應(yīng)用的時間要求大幅提高。現(xiàn)代計量應(yīng)用的通常要求是7年后時間偏移1小時。應(yīng)用的工作溫度范圍也應(yīng)符合該值。最多1小時。7年后對應(yīng)于32，768kHz下16ppm絕對值的頻率容差。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.

一方面，這是因為32，768kHz僅在+25°C時具有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。計算精度時，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晶振選擇無外部電路電容的布局包含很大的風(fēng)險，因為在批量生產(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)計的，而不是為如今使用它的大多數(shù)應(yīng)用而設(shè)計的。