彼得曼32.768K有源晶振的优势，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.
不断精进自我的优质制造商彼得曼公司，致力于开发大量高质量的产品，随着近几年来，现代计量应用的时间要求大幅提高。现代计量应用的通常要求是7年后时间偏移1小时。应用的工作温度范围也应符合该值。最多1小时。7年后对应于32，768kHz下16ppm绝对值的频率容差。传统的32，768 kHz振荡晶体不再可能满足这些要求。彼得曼32.768K有源晶振的优势.
一方面，这是因为32，768kHz仅在+25°C时具有10ppm的频率容差，另一方面，在-40/+85°C温度范围内的温度稳定性高于-180ppm。此外，老化约。计算精度时，必须考虑10年后的30ppm。最差情况下，32.768K有源晶振的最大频率稳定性为+40/-220 ppm(包括+25°C时的调整、温度稳定性和10年后的老化)。外部电路电容必须能够补偿由要同步的ic振荡器级的内部电容和杂散电容引起的任何系统频率偏移。为32，768晶振选择无外部电路电容的布局包含很大的风险，因为在批量生产期间，32，768晶振的精度既不能校正也不能调整以适应突然变化的PCB条件。最初，32，768英寸晶体的交叉角度是为手表的最佳精度而设计的，而不是为如今使用它的大多数应用而设计的。
彼得曼贴片石英晶振专用于超声波,公司
PETERMANN-TECHNIK是象征着质量和可持续性。这是一家有着伟大使命的知名制造商,从打磨产品的每一个细节之中可体现，你从一个来源得到一切。从合格的设计服务到我们的内部工程，再到具有卓越一致质量和性能的最高质量产品。
30多年来，我们在频率控制元件和系统方面积累了丰富的专业知识。我们的经验不仅限于使用石英晶振和振荡器开发电路。它还包括深入的工程知识，这是我们咨询服务和频率确定元件销售的基础。你可以相信我们的经验和专业知识。因为我们的目标是能够通过及时和有能力的咨询为您提供最好的支持。
代表团
彼得曼技术公司努力为每一种产品和服务提供最高的质量、安全性、灵活性和客户满意度。作为一个充满活力的市场环境中的创新者，我们致力于成为客户可靠的战略合作伙伴。凭借我们广泛的产品和服务、不折不扣的质量和卓越的性价比，我们支持他们开发具有竞争力的高效应用。
每个开发和生产专家都知道！石英晶体不能处理超声波焊接和清洗。高频焊接或清洗过程会损坏石英晶体谐振器。
格耶品牌的低功耗温补晶振TCXO，日益小型化的趋势技术参数要求越来越高在TCXO领域引人注目。随着5G网络和汽车行业、物联网行业、移动通信技术，医疗技术也要求高精度。TCXO已经是2019年最畅销的振荡器类型市场预测非常好。然而，由于最近几年的危机，一些领域的发展非常克制，重新确定了优先事项。年的显著复苏该OSC振荡器部分得到了制造商的支持性能卓越的组件。
在下文中，我们根据最新的技术状态总结了振荡器的原理构成的进展主要与频率稳定性、相位噪声和功耗有关。以下3组石英振荡器的测量方法不同对于温度补偿：
XO，石英晶体振荡器-一种没有特殊措施的晶体振荡器温度补偿。它的温度行为与使用的晶体。
TCXO，温度补偿晶体振荡器-一种温度补偿晶体振荡器，其中产生校正电压通过温度相关电阻器或类似电阻器，用于频率校正模拟TCXO可以实现大约20倍的改进仅在晶体上。格耶品牌的低功耗温补晶振TCXO.
OCXO，烤箱控制晶体振荡器-一种恒温控制晶体振荡器，其中晶体而其他温度敏感部件在一个选择温度的腔室中，使得晶体没有更长的时间具有任何明显的温度响应。OCXO可以实现超过1000倍的改进石英。
7050差分晶体振荡器X1G005331001500专用于5G通讯设备
爱普生晶振x;word-spacing:-1.5px"="">TG5032SFN，是一款温补晶体振荡器，小体积尺寸5.0x3.2mm有源晶振，四脚贴片晶振，电源电压2.375V至3.63V，频率范围10MHz至40MHz，工作温度-40℃至+85℃，具有超小型，轻薄型，低电源电压，低抖动，低功耗，低损耗，低耗能，高稳定性、快速起振等性能，该产品被广泛用于移动通讯，汽车电子，智能手机，平板电脑，智能家居，LED显示屏等
用于LED显示屏温补晶体振荡器X1G005401000600
Epson晶振推出的一款SPXO晶振系列，型号SG7050CAN是一款CMOS输出石英晶体振荡器、常规的7050尺寸扩展温度有源贴片晶振，频率范围4MHz至72MHz，1.6V至3.63V的宽工作电源电压和宽工作温度范围从-40℃到85℃，此外，最高工作温度可达105℃。 这些SPXO提供从2.0x1.6mm到7.0x5.0mm的五种不同封装尺寸，四脚贴片晶振，并提供标准引脚排列。具有输出频率稳定和低功耗，低电源电压，低抖动的特点，非常适用于物联网、移动设备，USB、GPS系统、光纤通道、千兆以太网以及工控类IC时钟芯片，为网络设备提供稳定的时钟信号。
X1G004481000200有源晶振为网络设备提供稳定的时钟信号
汽车及防盗遥控器应用晶振SG-210STF编码X1G004171003100
差分晶振是指能够输出差分信号的晶振,输出差分信号使用2种相位彼此完全相反的信号，从而消除了共模噪声,并产生一个更高性能的系统
爱普生晶振SG5032VAN是一款LVDS输出差分晶体振荡器，是EPSON/爱普生的一款额定频率73.5MHz至700MHz的石英晶体振荡器，小体积尺寸5.0x3.2mm，六脚贴片晶振，有源晶振，电源电压2.5V，3.3V，具有小体积轻薄型，低抖动，低功耗，低相位，低损耗，低耗能，低功耗，低电源电压，高稳定性等特点。该款有源晶体振荡器，可以在B:-20℃至+70℃/ G:-40℃至+85℃的温度内稳定工作，它广泛应用于汽车多媒体、车身电子、遥控器、太空设备、GPS，防盗防灾装置、安放监控等。SG5032VAN差分晶振X1G004261011900为通讯模块专用晶振
日本进口爱普生晶振TG2016SLN，是一款温补晶体振荡器，有源晶振，四脚贴片晶振，频率范围:10MHz至55.2MHz，电源电压:1.7V至3.63V，工作温度:-40℃至+105℃，产品采用无铅材料，符合RoHS标准，对环境友好，具有支持105℃和待机功能，待机电流仅3uA，可有效降低产品的能量消耗。该产品的外部尺寸小体积晶振规格为2.0x1.6x0.7mm，便于用户在电路板上布线，使用爱普生开发和制造的集成电路MHz基波晶体。结合微小的单密封结构优势尺寸，低高度和压力&模塑密封阻力，SLN系列是物联网和工业应用的理想选择。
应用于：全球导航卫星系统（global navigation satellite system），无线通信设备，LPWA、LTE、WiMAX、Wi-Fi、无线局域网 物联网等。
TG2016SLN用于无线通信设备的小尺寸温补晶体振荡器X1G005731060116
EPSON商标现如今到处可见,一个国外的品牌通过自己的努力使中华人民所熟知,在打印机、投影仪、晶体元件方面已经成为佼佼者.其中最先进入中国的是打印机,也许你现在办公桌上就有一台爱普生的打印机,1983年开始把眼光放在了石英晶体器件上面,80年代钟表开始流行的时候,爱普生以32.768K时钟晶振进军钟表行业,正是有着这种卓越的眼光EPSON集团随后以32.768K晶振系列为主要生产路线,产品逐步应用到无线通讯,手机,PCB,收音机,数码等消费类产品中.成为石英晶振行业里的霸主。
爱普生晶振MC-306，是一款32.768KHz晶振，小体积尺寸8.0x3.8mm无源晶振，石英晶体谐振器，四脚贴片晶振，工作温度范围-40℃至+85℃，具有小体积轻薄型，耐热及耐环境特性，特别适用于钟表电子，智能手机，平板电脑，仪器仪表，智能门锁，水电表，医疗设备等数码电子产品领域中。32.768k时钟晶振Q13MC3062003800特别适用于钟表电子应用
爱普生SG-8018系列最小封装尺寸2520mm可编程振荡器编码X1G005601036600
日本进口爱普生晶振FC-12M，是一款32.768kHz晶振，小体积尺寸2.0x1.2mm两脚贴片晶振，无源晶振，石英晶体谐振器，具有超小型，轻薄型，耐热及耐环境特性，适用于钟表电子，智能手机，平板电脑，智能门锁，仪器仪表，汽车电子，医疗设备等，质量稳定，品质优越，深受广大客户信赖.
FC-12M无源晶振编码X1A000021001000是一款32.768k时钟晶振
微信号
公众号
