FMI晶振FMXMC16S118HJA-26.000MHZ-CM頻率控制元器件詳情

晶體

彼得曼32.768K有源晶振的優勢，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.

不斷精進自我的優質制造商彼得曼公司，致力于開發大量高質量的產品，隨著近幾年來，現代計量應用的時間要求大幅提高。現代計量應用的通常要求是7年后時間偏移1小時。應用的工作溫度范圍也應符合該值。最多1小時。7年后對應于32，768kHz下16ppm絕對值的頻率容差。傳統的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溫度范圍內的溫度穩定性高于-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定性為+40/-220 ppm(包括+25°C時的調整、溫度穩定性和10年后的老化)。外部電路電容必須能夠補償由要同步的ic振蕩器級的內部電容和雜散電容引起的任何系統頻率偏移。為32，768晶振選擇無外部電路電容的布局包含很大的風險，因為在批量生產期間，32，768晶振的精度既不能校正也不能調整以適應突然變化的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計的，而不是為如今使用它的大多數應用而設計的。

揭秘領先全球AEL水晶與Abracon之間的關系，Founded in 1960, the AEL Crystal brand offers a range of innovative timing and frequency components. AEL provides solutions across frequency control technologies including quartz crystals, oscillators, and resonators.

AEL水晶品牌成立于1960年，提供一系列創新的計時和頻率組件。AEL提供跨頻率控制技術的解決方案，包括壓電石英晶體、振蕩器和諧振器。

Abracon LLC(Abracon)宣布已完成對AEL晶體有限公司的收購，這是一家總部位于英國薩里的私營頻率控制供應商。

“我們很高興將這兩家頻率控制公司聯合在一起，因為我們增加了一個非常有知識的AEL團隊，增強了我們在歐洲市場的存在，”說邁克·卡拉布里亞，Abracon的總裁兼首席執行官。“Abracon的一個關鍵戰略目標是在歐洲建立一個帶有服務中心的硬站點。AEL的加入實現了這一目標，因為英國AEL公司總部將轉變為Abracon歐洲服務中心。

收購AEL晶體后，Abracon將能夠進一步擴大其頻率控制和定時設備組合，并擴大Abracon在歐洲市場的實體存在。將AEL的石英晶振產品系列整合到Abracon現有的產品組合中，將增強Abracon提供最新技術設計支持和全球供應鏈靈活性的能力，以解決客戶當今的獨特挑戰。

“我們AEL水晶有限公司很高興成為Abracon大家庭的一員加里·拉姆斯代爾，AEL董事總經理。“我們早就認識到，AEL晶振公司和Abracon公司擁有共同的客戶服務核心價值觀、無與倫比的頻率控制產品系列和可靠的聲譽。我們期待將這些原則引入歐洲市場。”

Abracon將積極支持AEL產品線的整合，以及客戶所熟知的卓越客戶服務和可靠性。

Abracon offers in-system tuning services for patch and chip antennas.  This takes the guess work out of RF verification while offering corrective measures.  It can maximize system efficiency with benefits such as, extended RF range, improved sensitivity and reduced power consumption of a transmit range.

Abracon晶振為貼片天線和芯片天線提供系統內調諧服務。這在提供糾正措施的同時，減少了射頻驗證的猜測工作。它可以最大限度地提高系統效率，具有擴展射頻范圍、提高靈敏度和降低發射范圍功耗等優點。超越未來解決方案的性能、尺寸、功率和可靠性要求的晶體、振蕩器和諧振器產品。

CMOS輸出壓控振蕩器為何能在瑞斯克晶振大放異彩?CVHD-037X-125,Crystek Corporation® has been providing frequency products since 1958, including quartz crystals, XOs (Clock Oscillators), TCXOs (Temperature Compensated Crystal Oscillators), VCOs (Voltage Controlled Oscillators), and VCXOs (Voltage Controlled Crystal Oscillators). Crystek operates two divisions dedicated to frequency control. Crystek Crystals is dedicated to the development and manufacture of frequency products using quartz-based resonators. 

Crystek Corporation®自1958年以來一直提供頻率產品，包括石英晶體，xo(時鐘振蕩器)，OSC振蕩器,tcxo(溫度補償晶體振蕩器)，VCOs(壓控振蕩器)和vcxo(壓控晶體振蕩器)。Crystek有兩個部門致力于頻率控制。Crystek Crystals致力于開發和制造使用石英諧振器的頻率產品。

RMS抖動的差分振蕩器ECX2-LMV-3CN-156.250-TR為測試測量打開新通道，ECS晶振公司作為一家在頻率元器件行業有著十分豐富經驗的制造商，十分擅長于開發有源晶振產品,在開發方面的技術實屬無人可及,精湛的工藝，高超的技術，一一為ECS公司增添輝煌的一筆，作為一家遍布全球的跨國公司，為了將公司發展成為一個多樣化和包容性的全球供應鏈。我們相信多樣性激發創新，并允許供應商開發更多創新產品和解決方案服務我們的業務需求。